Table of Contents

UPLC-Q-TOF-MS-based untargeted studies of the secondary metabolites secreted by Sclerotinia sclerotiorum under the axenic condition

Published on: 29th December, 2022

The stem rot disease has emerged globally as a major threat to oilseed Brassica's productivity and seed quality. The generalist causal pathogen Sclerotinia sclerotiorum (Lib.) de Bary shows large variability in their aggressiveness and pathogenicity. Revealing the pathogen's metabolic profile and signaling components in host-pathogen interaction is fundamental in understanding host resistance to the disease. In this study, the metabolites released by the pathogenic strains of S. sclerotiorum under the axenic culture have been identified using the untargeted high-resolution UPLC-QTOF-ESI-MS/MS. The analysis of the ethyl acetate extracts of the S. sclerotiorum culture revealed ten major secondary metabolites namely, sclerin, sclerotinin-B, sclerone, melanin, bostrycoidin, botcinin-D, botcinin-A, gliovirin, scleramide, and botcinic acid. The later six metabolites are being reported for the first time in the culture extract of the S. sclerotiorum pathogen. Based on the overlapping and unique informative peaks in the chromatograms, the six S. sclerotiorum strains were grouped into three major clades in the phylogenetic analysis. The clustering based on metabolic profiles does not substantiate the diversity based on morphology or virulence differences over the host. The findings of the study signified the metabolites secreted under the axenic conditions are varies based on their growth and developmental stages and may not necessarily be the determining factors for their differential aggressiveness and virulence to their host. 
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Planococcus citri (Risso) (Hemiptera: Coccomorpha: Pseudococcidae) on Strawbery (Fragaria vesca L., Rosaceae) in Silifke, Mersin, Turkey

Published on: 23rd December, 2022

Fragaria vesca L. (Rosaceae), called “wild strawberry”, “woodland strawberry”, “Alpine strawberry”, “Carpathian strawberry” or “European strawberry” is grown naturally throughout much of the Northern Hemisphere and produces fruits. The plant can be spread mostly by stolons as well as by the seeds to establish new populations.
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Research progress on marker-assisted selection pyramiding breeding of disease resistance genes in wheat

Published on: 30th November, 2022

Marker-Assisted Selection (MAS) pyramiding breeding combined with traditional breeding techniques has become an important method for molecular breeding in wheat. In recent years, with the continuous discovery of disease-resistance genes and the development of molecular markers associated with related genes in wheat, the research of MAS pyramiding disease-resistance genes has made great progress. The progress on the study of MAS pyramiding resistance genes in wheat powdery mildew, rust, and Fusarium head blight (Fhb) was reviewed. The aims of pyramiding breeding were discussed in order to promote the research on MAS pyramiding breeding in wheat.
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A look at polyploidy and plant breeding

Published on: 28th November, 2022

Polyploidization is a process that generates genetic variability and therefore one of the engines of biological evolution. Since polyploidization produces important changes in the phenotype, mainly an increase in the size of the organs (i.e.: flowers and fruits), it is also a very important and powerful tool for plant improvement. Despite its intense use in breeding programs for various species, very little is known so far about the nature of this phenomenon. This work presents a brief review of the results obtained by the use of this tool in plant breeding and also raises some reflections on its mechanism of action.
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The Indole acetic acid in bacteria, fungi and plants

Published on: 17th November, 2022

Indole acetic acid (AIA) is the most important plant growth hormone since it intervenes in the mechanisms of cell growth and differentiation and is produced mostly in the meristematic zones of the plant for apical dominance or root growth. AIA is also produced in root nodules and plant galls. In the latter cases, its presence is associated with endophytic bacteria. Although it is a plant growth hormone, it is also produced by bacteria such as Azospirillum brasilense and Bradyrhizobium japonicum. These species live in the soil (rhizosphere) or can colonize the roots (endophytic) of their hosts. From these bacteria, there are also isolates that are nitrogen fixers, which in addition to providing growth factors to plants, contribute by releasing nitrogenous molecules that improve plant nutrition.
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Post-harvest assessment of infectious fruit rot on selected fruits in Lafia, Nasarawa State Nigeria

Published on: 15th November, 2022

The post-harvest health and microbial safety of plant products and foods continue to be a global concern to farmers, consumers, regulatory agencies and food industries. A study was carried out to evaluate the pathogenicity of fungi associated with post-harvest rot of oranges, watermelons and bananas in Lafia, Nasarawa State, Nigeria. Healthy fruits inoculated with fungal spores obtained from rotted fruit tissues were incubated at ambient temperature conditions and observed daily for the appearance and development of tissue rot. Oranges and Watermelons had the highest number of fungal isolates (3) compared to banana (2). Fungi belonging to the genus Curvularia were the most isolated (37.50%), followed by both Aspergillus and Colletotrichum (25.00% respectively) and lastly Alternaria (12.50%). The highest tissue rot diameter of sweet orange (2.40 cm) was induced by Alternaria sp. followed by Curvularia geniculate (1.40 cm) and lastly Colletotrichum sp. (1.28 cm). The highest rot of banana fruit tissues was produced by A. niger (3.90 cm), followed by Curvularia geniculate (3.40 cm). Aspergillus sp. produced the highest tissue rot diameter on watermelon fruits (1.93 cm), followed by Colletotrichum sp. (1.30 cm) and lastly Curvularia geniculate (1.20 cm). Differences in the susceptibilities of different fruits to rot by fungal pathogens were significant (p ≤ 0.05). There is need for improved handling of fruits after harvest to prevent losses due to bacterial and fungal rots in the study area.
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Flashes of UV-C light are perceived by UVR8, the photoreceptor of UV-B light

Published on: 10th November, 2022

Light is an important regulator of plant morphogenesis and plant-pathogen interactions via specific photoreceptors and signaling pathways. Besides visible light, other electromagnetic radiations may play roles, notably ultraviolet (UV) light. The UV part of the electromagnetic spectrum includes UV-A (315 nm - 400 nm), UV-B (280 nm - 315 nm) and UV-C radiations (200 nm -280 nm). UV-B and UV-C have been reported to increase plant resistance to plant pathogens after the UV perception and signaling stages. The perception of UV-B radiation is achieved by the dimer protein UVR8 (UV RESISTANCE LOCUS 8). Even though the action spectrum of this photoreceptor overlaps in the UV-C domain, it has never been formally demonstrated that UVR8 could also act as a photoreceptor of UV-C light. We provide here original observations showing that UVR8 can indeed perceive UV-C light provided that the latter is in the form of flashes (1s) and not continuous illuminations (the 60s). Our observations also show that the response of UVR8 to flashes of UV-C light is dose-dependent. They could explain why flashes of UV-C light are more effective for stimulating plant defenses than continuous illuminations for the same amount of energy delivered to plants (J/m2). Eventually, our observations support ongoing trials that aim at using UV-C light as an environmental-friendly plant resistance inducer in field conditions.
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Assessment of indigenous methods of shea butter processing among rural women in Borgu Local Government Area of Niger State, Nigeria

Published on: 4th November, 2022

Indigenous food processing and preservation methods are on the verge of collapse, yet they proved promising and sustainable. The study assessed the indigenous methods of shea butter processing among rural women in the Borgu Local Government Area of Niger State, Nigeria. Specifically, it described the socioeconomic characteristics of respondents, examined the shea butter processing techniques used and identified the information sources of shea butter processors in the study area. A multistage sampling technique was used to select 100 respondents. Descriptive (such as frequency count, percentage, charts and tables) and inferential statistics (such as Pearson correlation and chi-square) were used to analyze the data. Findings showed the mean age of respondents was 45.61 ± 11.82, with mean years of experience of 20.39 ± 12.96, the majority (85%) were married and the major sources of information on indigenous shea butter processing came from family members and friends. At p ≤ 0.01 there was a significant association between respondents’ usage of indigenous methods and their marital status (ᵡ2 = 84.24; p ≤ 0.01), membership in cooperative society (ᵡ2 = 40.43; p ≤ 0.01), and community membership (ᵡ2 = 53.21; p ≤ 0.01). However, there was a significant relationship between respondents’ usage of indigenous methods and household size (b = 0.290; p ≤ 0.05), quantity produced (b = 0.616; p ≤ 0.10) and annual income (b = -0.765; p ≤ 0.05). It was concluded that indigenous methods of processing shea butter are widespread among respondents; knowledge is acquired through family and friends. Among others, the study recommends that extension agents be posted to rural areas to educate rural women and build on their indigenous knowledge of processing shea butter to introduce high-quality butter.
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Characterization of senegalese races of Xanthomonas oryzae PV. oryzae to identify resistance genes to use

Published on: 19th October, 2022

Bacterial blight (BB), is a disease caused by Xanthomonas oryzae PV. oryzae (Xoo), was first reported in Senegal by Trinh in 1980. BB represents a severe threat to rice cultivation in West Africa. Characterizing the pathotypic diversity of bacterial populations is a key to the management of pathogen-resistant varieties. Pathogenicity tests show that all strains are virulent on the susceptible rice variety Azucena, and interact differentially with twelve near-isogenic rice lines, each carrying a single resistance gene. On this rice panel, six races were identified, two of which were previously reported in Mali (A3) and Burkina Faso (A1). Four races (S2, S4, S5, and S6) are described for the first time in Africa. Races A1, isolated in Ndiaye and Ndioum areas is the most prevalent in Senegal. The Xa1 gene controls 100% of the isolates tested and xa5 controls all isolates except S4 strains. The geographical distribution of Xoo races is contrasted. Four races are detected in the North and two in the South East of the country. Race S4 can be a major risk to rice cultivation because strains from this race are the most virulent and can only be controlled by Xa1. To identify local sources of resistance, we screened Xoo strains representative of the various races on twenty-three rice varieties grown by farmers in Senegal. Four rice varieties namely Sahel210, Sangangbye, Dansna2, and Sahel305 effectively control all the isolates tested. Our characterization of the first collection of Senegalese Xoo strains provided insight into the races present in the country and identified sources of resistance in local rice varieties. This information will help design effective breeding programs for resistance to bacterial leaf blight in Senegal. 
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The ongoing search for sustainable agriculture

Published on: 7th October, 2022

OCLC Number/Unique Identifier: 9640283313

Agricultural land use has left its traces on the planet since sedentary agriculture started. Most of the ancient cradles of mankind and agriculture, such as the area between the rivers Euphrates and Tigris or the middle east are degraded and deserts today.
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Micropropagation and cytological studies of Aole vera Linn

Published on: 30th September, 2022

OCLC Number/Unique Identifier: 9636718751

Aloe vera Linn. is an essential medicinal plant. In this present research work, a protocol of in vitro regeneration and karyomorphological analysis of Aloe vera was developed using different concentrations and compositions of media. Shoot apices of field-grown plants were used as explant and aseptically cultured on Murashige and Skoog (MS) medium fortified with different concentrations and combinations of auxins (IAA and NAA) and cytokinins (BAP and Kn). The highest number of multiple shoot buds (4.36 ± 0.07) was obtained from MS + 2.0 mg/l BAP + 1.0 mg/l IAA and induced shoot buds underwent rapid elongation (4.24 ± 0.06 cm) on the same medium composition. Half strength MS media with 2.0 mg/l IBA was suitable for induction and proliferation (6.31 ± 0.05) of roots and 95% of plantlets were acclimatized to field conditions successfully. Somatic chromosome numbers of mother and in vitro grown plants were confirmed to be 2n = 14. Chromosome length ranged from 4.28 - 13.74 µm in the naturally grown plants and 4.46 - 14.1 µm for in vitro grown plants. The total form percent (TF%) of mother and in vitro grown plants was 41.69% and 42.23%, respectively. The karyotype formula of in vivo grown plants was 2n = 14 = 4Lsm + 6Mm + 4Sm, whereas that of the micropropagated plants was 2n = 14 = 4Lsm + 4Mm + 6Sm. The frequency of the chromosome having arm more than 2:1 was 0.08 for mother plants and 0.15 for in vitro grown plants. Therefore, the karyotype of both plants falls into the 2B symmetrical type based on Stebbins classification (1971).
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Photocatalytic degradation of organic pollutants in the presence of selected transition metal nanoparticles: review

Published on: 29th September, 2022

OCLC Number/Unique Identifier: 9639245949

Photocatalysis has attracted a lot of attention in recent years due to its potential in solving energy and environmental issues. Efficient light absorption and charge separation are two of the key factors for the exploration of high-performance photocatalytic systems, which are generally difficult to obtain from a single photocatalyst. The combination of various materials to form heterojunctions provides an effective way to better harvest solar energy and facilitate charge separation and transfer, thus enhancing photocatalytic activity and stability. This review concisely summarizes the recent development of visible light responsive heterojunctions, including the preparation and performance of semiconductor/semiconductor junctions and semiconductor/metal junctions and their mechanism for enhancing light harvesting and charge separation/transfer. In this regard, this review presents some unitary, binary and ternary CeO2 photocatalysts used for the degradation of organic pollutants. We expect this review to provide the type of guidelines for readers to gain a clear picture of nanotechnology and the fabrication and application of different types of heterostructured photocatalysts.
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An overview of the developments of nanotechnology and heterogeneous photocatalysis in the presence of metal nanoparticles

Published on: 20th September, 2022

OCLC Number/Unique Identifier: 9625606691

In general, nanotechnology can be understood as a technology of design, fabrication and applications of nanostructures and nanomaterials, as well as a fundamental understanding of the physical properties and phenomena of nanomaterials and nanostructures. In recent years the development of industries like textile, leather, paint, food, plastics, and cosmetics is enlarged and these industries are connected with the discarding of a vast number of organic pollutants which are harmful to microbes, aquatic systems, and human health by influencing the different parameters. So the fabrication of those nanomaterials (coupled or doped) to form heterojunctions provides an effective way to better harvest solar energy and facilitate charge separation and transfer, thus enhancing the photocatalytic activity and stability. We expect this review to provide a guideline for readers to gain a clear picture of the fabrication and application of different types of heterostructured photocatalysts. In this review, starting from the photocatalytic reaction mechanism and the preparation of the photocatalyst, we review the classification of current photocatalysts, preparation methods, a factor that affects photocatalytic reaction, characterization of photocatalysts, and the methods for improving photocatalytic performance. This review also aims to provide basic and comprehensive information on the industrialization of photocatalysis technology.
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Mitigation and adaptation to climate change of plant pathogens

Published on: 7th September, 2022

The impact of climate change on plant diseases poses a serious threat to food security [1-4]. Climate change has a direct effect on the occurrence and severity of disease in crops. Global plant health assessment and crop loss estimation due to pests and diseases has been made especially for cropping regions defined by the major crops of wheat, rice, maize, potato and soybean [5].
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Genetic variability in the susceptibility of immature peach fruit to Monilinia laxa is associated with surface conductance but not stomatal density

Published on: 25th August, 2022

OCLC Number/Unique Identifier: 9599097875

Monilinia laxa is a fungus that causes brown rot in stone fruit. Immature green fruits in the first stage of fruit development (stage I) are generally susceptible. To investigate the relationship between the physical characteristics of immature fruit and susceptibility to M. laxa, we characterized the progeny, derived from a clone of wild peach (Prunus davidiana) crossed with two commercial nectarines (Prunus persica) varieties, through laboratory infection, transpiration monitoring and stomata counting. Two types of fruit infections were observed - ‘classic’ brown rot and ‘clear spot’ symptoms - which have not previously been described in the literature. The number and density of stomata did not explain the observed variability of infection in the progeny. However, surface conductance was positively correlated with infection level. This study provides experimental evidence partially linking physical fruit characteristics to brown rot infection at the immature fruit stage. The role of delayed cuticle deposition in susceptibility to brown rot of immature fruit is discussed.
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Sanitary update on wheat in Argentina

Published on: 3rd August, 2022

OCLC Number/Unique Identifier: 9586045459

The wheat production (Triticum aestivum L.) in Argentina is the third in importance after soybeans and corn (source: BCR). 
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Invasive and native woody plant encroachment: Definitions and debates

Published on: 28th July, 2022

OCLC Number/Unique Identifier: 9586056316

In this short opinion piece, we discuss the appropriate use of the term ‘invasion’ for woody plant expansion and refer to the various ways in which the term is being used in the literature. We point out the present confusion and make suggestions for the use of a more appropriate term (i.e., ‘woody plant encroachment’). We continue with an overview of the various definitions of ‘woody plant encroachment in the literature, we mention associated alternative terms, and we explain the circumstances in which each of these are used. With this piece, we hope to provide more clarity on the use of correct terminology related to woody plant expansion research.
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Genetic variability, divergence, and path coefficient analysis of yield and yield related traits of Durum wheat (Triticum turgidum l. var. Durum) genotypes at Jamma district, south wollo zone, amhara region, Ethiopia

Published on: 4th July, 2022

OCLC Number/Unique Identifier: 9575033076

Durum wheat (Triticum turgidum L. var. durum) is a member of the Poaceae family and tetraploid (genomes of AABB) with 28 chromosomes (2n=4x=28). Narrow genetic variability was a problem to develop genotypes with better adaptation to different agro-ecologies. Therefore, the objective of this study was to investigate the genetic variability, divergence, and path coefficient analysis of durum wheat genotypes by using morphological traits and identifying essential yield-related traits of durum wheat, and to identify promising candidate genotypes to be used in future durum wheat breeding program. The study was carried out on 81 genotypes and the experiment was laid out in a triple lattice design with an arrangement of 9 x 9 x 3 treatment, which made 243 experimental units. Results obtained on genetic variability, path coefficient, and genetic divergent analysis among yield-related traits are presented here under the present study. Generally, the present study revealed the existence of significant genetic variability among the tested genotypes for different traits helpful for direct and indirect selection.This study recommended that the potential durum wheat genotypes 214552, 208150, 238516, 5645, Mekuye, 236984, 7960, 7152, 231599, and 208242 could be used for durum wheat breeding programs for yield and yield component traits improvement under similar agro-ecologies.
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Synthesis and characterization of CdS/CeO2 Nanocomposite with improved visible-light photocatalytic degradation of methyl orange dye

Published on: 20th June, 2022

OCLC Number/Unique Identifier: 9554643032

Different types of photocatalysts in single and binary systems in different molar ratios were synthesized by the co-precipitation method. Crystal structure, surface area, morphology, bandgap energy, functional groups, and optical properties of the as-synthesized photocatalysts were characterized by using XRD, BET, SEM-EDX, UV/Vis, FTIR, and PL instruments, respectively. Photocatalytic activities of the single and binary composite were evaluated by using an aqueous solution of model pollutant MeO. Photocatalytic activities of binary CdS/CeO2 (1:1) nanocomposite were found to be higher than those of single counterparts. The degradation efficiencies of the binary system were found to be 53.73%. The reusability of the binary photocatalyst was tested and only about 33% decrement was observed after four successive runs. The degradation of MeO dye follows the pseudo-first-order kinetics for the entire as-synthesized nanocomposite. The results also suggest that in the CdS/CeO2 (1:1) composite the photoinduced electrons and holes can be effectively separated.
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The use of Bacillus thuringiensis to control plant-parasitic nematodes

Published on: 20th June, 2022

OCLC Number/Unique Identifier: 9537150284

Plant-parasitic nematodes are ubiquitous in nature and cause large losses in agriculture. The current concerns regarding the use of chemical pesticides have increased the interest in new control alternatives. One of these is the one based on Bacillus thuringiensis (Bt). These Gram-positive bacteria have the ability to synthesize pesticide proteins during sporulation. Some of these proteins have nematicidal properties. Studies have shown that preparations of certain strains of Bt can prevent or slow down the infestation of phytonematodes. The expression of some Bt nematicidal genes in transgenic plants has also demonstrated their effectiveness. Bt is nowadays an effective ecological alternative for controlling plant-parasitic nematodes.
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Chemical composition of olive stems essential oil from Ethiopia

Published on: 14th June, 2022

OCLC Number/Unique Identifier: 9538009406

In this article, the chemical compounds, antimicrobial and antioxidant activity of the volatile oil from leaves of Olea Europaea L. cultivar from Ethiopia has been studied. The essential oil was provided with a dry distillation apparatus and analyzed by GC-MS/FID. This analysis leads to the detection of 128 compounds representing 89.4% of the total oil. The major constituents were methyl ester hexadecanoic acid (4.10%), 2,4-dimethoxyphenolAa (4.05%), 2-methoxy-phenol (3.25%), 3,5-dimethoxy-4-hydroxytoluene (3.20%), 2-methoxy-5-methyl phenol (3.19%), 1,2,3-trimethoxy-5-methyl benzene (2.93%), 2-methoxy-4-vinyl phenol (2.70%), 2-hydroxy-3-methyl-2-cyclopenten-1-one (2.60%), trans-Isoeugenol (2.45%) and (E) -2,6-dimethoxy-4- (prop-1-en-1-yl) phenol (2.25%). The composition of essential oils was dominated by phenolic compounds.
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Plant molluscicide based on Smolevka white (Silene Latifolia) as prevention of pastoral helminthiasis of animals

Published on: 9th June, 2022

OCLC Number/Unique Identifier: 9538010281

Soft-bodied is the intermediate host of helminthiases, in the body of which several development stages of larval forms of helminths occur. There is the highest population density of mollusks in the areas of ruminant grazing, which leads to mass infection of animals with trematodes. To destroy the intermediate host of helminths in agricultural production, molluscicidal remedies of synthetic and plant origin are used. The work aimed to determine the molluscicidal effectiveness of a plant remedy based on Silene Latifolia in conditions of natural pastures. The material for work was the green mass of the plant S. Latifolia obtained in the warm season from roots, leaves, stems, flowers, and seeds. By grinding this plant, a powder with a particle size of 1-3 mm was obtained. Then, the powder was extracted with ethyl alcohol. The obtained product (concentrate) was an amorphous gel-like mass of dark green color with a specific smell and well soluble in water. Fieldwork in natural pastures was carried out on 5 biotopes with an area of 4-25 m2. Three species of gastropods were recorded from freshwater mollusks in the biotopes: Planorbis planorbis, Planorbarius corneus, Physa fontinalis, Lymnaea truncatula, and L. palustris. The results of experiments conducted in the conditions of pastures indicate a high molluscicidal activity of the studied plant agent on pond fish, intermediate hosts of trematodes pathogens. The effectiveness of the developed molluscicide on gastropods, when treated with a working solution (10.0 g/l) is from 98.1 to 100%.
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Collection, isolation and characterization of Sclerotinia sclerotiorum, an emerging fungal pathogen causing white mold disease

Published on: 31st May, 2022

OCLC Number/Unique Identifier: 9526132489

Sclerotinia sclerotiorum (Lib.) de Bary caused white mold disease with a wide distribution worldwide. For the control of the disease, it is fundamental to understand the identification, morphology, and genetic diversity of the fungus. The objective of this study was to collect and characterize S. sclerotiorum isolates from different regions of the country. The characteristics evaluated for the mycelium characterization were: the time required for the fungus to occupy the plate; density of the formed mycelium; coloration of the colonies and mycelia growth rate. Sclerotia assessments were based on the time for the formation of the first sclerotia total number formed per plate, the format of distribution in the plate, and the shape of the sclerotia formed by the isolates. Variability was observed for colony colour, type of growth, the diameter of mycelia growth, sclerotia initiation, and number and pattern of sclerotia formation among the isolates. The evaluated populations presented wide variability for the cultural and morphological characteristics, being predominant in the whitish colonies with fast-growing habitats. The majority of isolates produced a higher number of sclerotia near the margin of the plates and with diverse formats. Phylogenetic analysis revealed that the isolates belonged to a similar group of publicly available S. sclerotiorum and were dissimilar from the group of S. minor, and S. trifolium and distinctly differ from S. nivalis group. The present study is the first evidence for morphological and genetic diversity study of S. sclerotiorum in Bangladesh. Therefore, this report contributes to more information about the morphological and genetic diversity of S. sclerotiorum and can be useful in implementing effective management strategies for the pathogen which caused white mold disease.
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Importance of BLUP method in plant breeding

Published on: 31st May, 2022

OCLC Number/Unique Identifier: 9526112251

Introduction: The most desirable linear neutral prediction (BLUP) is a standard method for estimating the random effects of a hybrid model. This approach was originally developed in animal breeding to estimate breeding values and is now widely used in many fields of research. The main practical advantages of using REML/BLUP are: It allows the comparison of individuals or species over time (generation, year) and space (location, block). Possibility of simultaneous correction of environmental effects, estimation of variance components, and prediction of genetic values.The best BLUP prediction method, which estimates the averages with high accuracy, especially in mixed models, is also used to evaluate multi-environment experimental data (MET).Blup is one method is statistical. Pedigree-based blup method.Materials and methods: The BLUP method achieves this goal by combining phenotypic data and information on pedigree relationships through an index, known as family index selection. This index, which is estimated based on the coefficient of intra-class correlation, exploits the relationships of individuals within a family compared to other families in the population.Results: The results: show that BLUP has good prediction accuracy compared to other methods. Pedigree-based BLUP method can increase selection yield in production-related traits in P. zonale or shelf life of D. caryophyllus L.
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Effects of animal manures on growth and yield of maize (Zea mays L.)

Published on: 27th May, 2022

OCLC Number/Unique Identifier: 9524460916

A spatial survey to investigate the effects of the use of poultry, sheep, and horse manure on intermediate harvests and maize growth restrictions was conducted on the research farm of Woillu Woreda, Ethiopia during the 2017 planting season. Treatment was performed with Randomized Complete Block Design (RCBD) with three responses. The measured variables were plant length, number of leaves, location indicator (LAI), stem girth, and grain yield obtained. The data collected is subject to variance analysis (ANOVA). Methods were categorized using LSD at a 5% significance level.The results obtained showed that the growth and yield of Maize were significantly lower in treatment control, indicating that the manure used in the study, especially the chicken manure, had a positive effect on the performance and yield of Maize. The results also revealed that poultry-cleaned sites offer the highest number of leaves per plant, the thick stem, the highest LAI, and the grain yield of 5.7 t/ha. In comparison, a small grain yield of 4.2 t/ha was obtained with the application of horse manure. Sheep manure produced 3.9 t/ha of maize and a small yield of 2.8t/ha of maize was recorded in the control management. Based on the results of the study it can be found that chicken manure seems to promote the growth of maize yield. Therefore, it should be recommended for maize growers in the study area.
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Food applications of Aloe species: A review

Published on: 4th May, 2022

OCLC Number/Unique Identifier: 9507334452

Plants have a high concentration of biologically active molecules. Aloe plants tend to store water and important chemical constituents in their swollen and succulent leaves due to their ability to survive in hot and dry conditions, which makes them a unique source of phytochemicals. The Aloe leaf contains more than 200 nutritional substances, including vitamins, minerals, amino acids, and active enzymes. These constituents are analyzed as phytochemical screening (qualitative analysis) or proximate and mineral content analyses (quantitative analysis). Aloe is used as a food product and beverage ingredient. Functional and nutraceutical foods, edible coatings/films, Aloe species as cooked vegetables, and raw eating of Aloe species are how the Aloe plant is considered in food applications. The researchers reported edible Aloes for several species. However, it is not mean that all species of Aloe are edible. It is not only the leaves of Aloe that have nutritional values also other parts of the plant do. The study evaluated the nutritional value of Aloe flowers and their possible use as edible flowers. Aloe species are increasingly being incorporated into different health drinks, foods, and beverages due to the beneficial biological activities of the phytochemicals.
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Nematicides in Egypt

Published on: 5th April, 2022

Plant-parasitic nematodes (PPNs) are famous aggressive pests that attack several crops worldwide. A lot of farmers are suffering from nematode diseases which cause critical crop losses. At the same time, the most of available solutions for this problem are depending on synthetic nematicides. These chemical nematicides not only cause environmental and health problems but also may cause resistance in nematodes. Despite the occurrence of resistance in nematodes under field conditions still less clear. Therefore, this note is about the registered nematicides in Egypt which may help those who are interested in nematicides. Also, the chemical group and mode of action of nematicides were mentioned according to the insecticide resistance action committee (IRAC) [1] and fungicide resistance action committee (FRAC).
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Magnitude of aphid infestation, root rot and rust disease of lentil

Published on: 31st March, 2022

OCLC Number/Unique Identifier: 9470200773

Lentil is the major cultivated pulse crop of Bangladesh. Even if there are available high-yielding modern varieties of this crop but because of the higher yield gap, its demand is largely met by import. Thus, to evaluate the pest-related factors of low yield seven modern lentil varieties viz. Binamasur-5, Binamasur-8, Binamasur-9, Binamasur-10, BARI Masur-5, BARI Masur-6, and BARI Masur-8 were assessed to enquire the extent of aphid infestation, foot rot and rust disease incidence, and severity on seed yield. The experiment was laid out in a Randomized complete block design during Rabi season at BINA Sub-station, Magura. Data on insects and disease were recorded at definite SMW (standard meteorological week) and DAS (days after sowing). Outcomes divulged that maximum aphid infestation (number of aphids/plant) was noted between 7th to 9th SMW; where BARI Masur-6 had significantly lowest infestation level on 7th and 8th SMW. Summative foot rot disease incidence (%) was most in Binamasur-8 and Binamasur-9, but least in BARI Masur-6 and Binamasur-5. For rust, the highest incidence (%) was recorded with Binamasur-8 and Binamasur-5; contrary the lowest was seen with BARI Masur-6 and BARI Masur-8. Severity index (DSI) of foot and root rot was abundant by Binamasur-8 (72.89%) and Binamasur-9 (71.56%); conversely, Binamasur-10 (52.11%) and BARI Masur-8 (50%) had scarce DSI. In the case of rust, BARI Masur-5 (74.00%) showed top DSI accompanied by Binamasur-8 (58.33%). The utmost seed yield of 8.25 g/plant was produced by Binamasur-10; in contrast, the least was yielded by Binamasur-8 (5.45 g/plant). Weather factors (temperature, relative humidity, rainfall) were positively related to the number of aphids per plant. However, seed yield was negatively affected by aphid population, foot rot, and rust disease incidence. Overall, Binamasur-10 corroborated having better resilience to biotic and abiotic factors for delivering desirable economic yield
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Quantification of minor, trace and toxic elements in stems of Santalum album (L.), Mangiferra indica (L.) and Tinospora cordifolia by instrumental neutron activation analysis

Published on: 4th March, 2022

OCLC Number/Unique Identifier: 9437625422

Stems of Santalum album (Sandalwood), Mangiferra indica (Mango wood), and Tinospora cordifolia (Giloy) are widely used in the preparation of herbal medicines and formulations in the traditional Indian health care system called Ayurveda. These were analyzed for 4 minor (K, Ca, Cl, Mg) and 13 traces (As, Ce, Co, Cr, Cu, Fe, Hg, La, Mn, Na, Se, V, and Zn) including toxic elements by instrumental neutron activation analysis (INAA). Samples in powder form along with reference materials (NIST SRM 1547 and INCT MPH-2) as comparators were irradiated for 1 min/6 h in Dhruva/CIRUS reactors at BARC, Mumbai. Gamma activity was measured by high-resolution gamma-ray spectrometry. In general, K, Ca, Fe, Mn, and Zn contents are very high in all the samples but Santalum album, widely used as a perfume, is more enriched in K, Ca, Cr, Zn, and Se. The concentration of Ca is always high as a major constituent (> 10 mg/g) in all the stem/bark of plant species. A strong inverse correlation (R2 = 0.9999) was observed between Fe and Zn in all three samples and that may be useful in drug manufacturing.
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Growth performance of selected Moringa oleifera seed origins in North Florida

Published on: 25th February, 2022

OCLC Number/Unique Identifier: 9435282664

Moringa oleifera which is also known as horseradish or drumstick tree is a rapidly growing, drought-tolerant tree that can tolerate poor soil conditions. It is presently broadly cultivated and has turned out to be naturalized in numerous geographical areas of the tropics. The objective of this study was to evaluate the growth performance and survivability of Moringa seed origins in the North Florida region of the United States of America. Seedlings were prepared in the George Conoly Greenhouse at the Florida A&M University, Tallahassee, FL. The seed origins were Ghana, Texas PKM1, Haiti PKM1, Colombia, Nigeria, Jamaica, Nigeria Local, Impex PKM1, Peela Medu, India EOA PKM1, and Belton. A randomized completely block design (RCBD) was used in this study to compare the performance of eleven seed origins of M. oleifera Height and Stem diameter. Nigeria Local had the best performance in terms of height for 2018 and 2019 growing seasons, 191.98 ± 7.42 cm and 123.19 ± 26.67 cm, respectively. Colombia had the best performance in terms of stem diameter for the 2018 and 2019 growing seasons, 2.6 ± 0 cm and 2.08 ± 0 cm, respectively. However, DMRT revealed that the height and stem diameter of the seed origins were not significantly different (p ≤ 0.05). Therefore, the results revealed that the alternative hypotheses (Ha) that the Moringa oleifera seed origins were significantly different in heights and stem diameter were rejected.
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