A5016840065- Plant Pathogens and Fungal Diseases
- Fungal Biology and Applications
- Legume Nitrogen Fixing Symbiosis
- Agricultural pest management studies
- SARS-CoV-2 and COVID-19 Research
- Aquatic Ecosystems and Biodiversity
- Botanical Research and Applications
- Soybean genetics and cultivation
- Mycorrhizal Fungi and Plant Interactions
- Banana Cultivation and Research
- COVID-19 epidemiological studies
- COVID-19 diagnosis using AI
- SARS-CoV-2 detection and testing
- Ethnobotanical and Medicinal Plants Studies
- Genomics and Phylogenetic Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Polysaccharides and Plant Cell Walls
- Fungal Plant Pathogen Control
- Plant Pathogens and Resistance
- Microbial Community Ecology and Physiology
- COVID-19 Clinical Research Studies
- Insect Utilization and Effects
- Agronomic Practices and Intercropping Systems
- Papaya Research and Applications
- Agricultural Practices and Plant Genetics
Jaramogi Oginga Odinga University of Science and Technology
2019-2024
Chuka University
2016
Low soil nitrogen (N) is a major constraint for sustainable crop production in smallholder farming systems Africa.Grain legumes such as bambara groundnuts (Vigna subterranea L. Verdc).can form N fixing symbiotic association with root nodule bacteria collectively called 'rhizobia'; process that can supply sufficient the legume and other crops under intercrop or rotation.There currently insufficient information on diversity of indigenous rhizobial populations soils Lake Victoria basin western...
The population's antibody response is a key factor in comprehending SARS-CoV-2 epidemiology. This especially important African settings where COVID-19 impact, and vaccination rates are relatively low. study aimed at characterizing the Immunoglobulin G (IgG) M (IgM) both asymptomatic symptomatic individuals Kisumu Siaya counties western Kenya using enzyme linked immunosorbent assays. IgG IgM overall seroprevalence 98 between December 2021-March 2022 was 76.5% (95% CI = 66.9-84.5) 29.6%...
Aims: In this study, we assessed the effect of physicochemical properties soils from different land use systems on population Actinomycetes.
 Study Design: A cross sectional survey design in line transect sampling was used collection samples systems. 4×6×3 factorial experiments laid completely randomized determining Actinomycetes system and media type culture.
 Place Duration Study: The study conducted Meru south sub-county, Kenya, between January 2019 July 2019.
 Methodology:...
Utilization of mushrooms collected from the wild requires adequate description useful phenetic features and domestication protocols.This study investigated morphological characters spawn production procedures three Kenyan native strains wood ear mushroom [Auricularia auricula (L.ex Hook.)Underw.].Nine basidiocarps were selected collections made in forest reserves within Kakamega Forest Western Kenya morphologically characterized.Mycelia raised on 2% malt extract agar bottle culture...
Mushrooms of the genus Auricularia, generally termed wood ear mushrooms are in high demand Western Kenya due to their numerous medicinal and nutritional properties.Interventions characterize conserve native necessary mitigate possible extinction this valuable bio-resource.Currently, species richness bio-geographical relatedness Kenyan ears is not fully elucidated.This study used molecular sequence analysis internal transcribed spacer (ITS) 28S nuclear ribosomal large subunit (nLSU) genes...
Tomato early and late blight diseases caused by Alternaria solani Phytophthora infestans respectively, are constraints to tomato production globally. Conventional use of commercial synthetic fungicides in management disease has become a key input for among farmers Tharaka Nithi County, Kenya. Indiscriminate application sub-lethal doses negate efforts, may lead gradual fungicide resistance. Yet, local have continued the without periodic evaluation their effectiveness. This study was carried...
Abstract Chironomidae is a group of diptera insects, commonly known as “non-biting midges'' in the adult stage and “bloodworms” larval stage, represent insects that thrive various aquatic environment worldwide. Despite plethora information on many parts world, there paucity data regarding this indicator species polluted Kenyan Nyanza Gulf Lake Victoria molecular identification has not been explored. This study aimed to characterize based mitochondrial DNA barcoding cytochrome oxidase subunit...
The Chironomidae family, known as "non-biting midges" in their adult stage and "bloodworms" larval stage, consists of diverse dipteran insects inhabiting various global aquatic environments. Despite extensive research, data on the polluted Nyanza Gulf Lake Victoria, Kenya, is scarce, molecular identification methods have not been explored. This study aimed to quantify heavy metal concentrations water, sediment, insect samples assess impact Chironomid species identified using mitochondrial...
Tomato (Lycopersicon esculentum Mill) is a highly consumed and produced vegetable crop with an annual global production of over 185 million tonnes. High consumption are due to its nutritional health benefits. However, tomato characterized by inconsistent quality yields, partly emanating from biotic constraints attributed fungal foliar diseases. In Kirinyaga County, where significant source livelihood, knowledge gaps exist regarding the identity Alternaria species causing blight in different...
Herbals have been used for decades to treat gastrointestinal infections across the world, including in Tharaka-Nithi County, Kenya. Crude extracts from herbs long prescribed by traditional healers treatment of typhoid, cholera, and shigellosis. However, effectiveness obtained using different extraction solvents such as methanol, acetone, hexane not fully evaluated. This study aimed at evaluating effect (Ethanol, hexane, methanol) on yield crude extract plants (Erythrinna abyssinica, Aspilia...
Aim: The increasing emergence and global spread of antibiotic-resistance by microorganisms pose a severe public health threat. Continuous exploration different environments is required to find new sources antibacterial compounds. Therefore, the study isolated, characterized identified potential Actinomycetes candidates with activity against bacterial pathogens from diverse land use systems.
 Study Design: Soil samples systems were collected using cross-sectional survey technique line...
The symbiotic Biological nitrogen fixation (SBNF) is a sustainable and low-cost alternative to expensive inaccessible inorganic fertilizers. However, SBNF underutilized in soils of Lake Victoria basin due insufficient information on local rhizobial strains diversity their N-fixation efficiency. This study was carried out assess the effectiveness rhizobium isolates Kisumu, Port Victoria, Kendu bay Karungu within nodulation efficiency soybeans bambara groundnuts. Two seeds groundnut landraces;...
Health care is a basic need to humans which can only be achieved with medicines high efficacy against disease causing pathogens. Globally, gastrointestinal infections are major health concern particularly travelers since over 60% visiting tropical and subtropical regions develop diarrhea. Herbal plants have been used for decades treat globally including Tharaka-Nithi County in Kenya. However, there little information on the demography of herbalist treatment such as typhoid, cholera...
Diseases are hindrance to tomato production in Kirinyaga County, Kenya. However, information on farmer’s knowledge about diseases warrant pesticide usage is scanty. Further, there gap disease predisposing factor such as varietal choice and seed source. This study assessed the farmers’ socio characteristic, varieties grown, source of selected foliar fungal among farmers agro-ecological zones (AEZs) County. A cross sectional survey design that cooperated purposive sampling snowballing...
Coronavirus is a disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which emerged as global pandemic in 2019 from Wuhan, China. Since its emergence, it has immense suffering to human life, 6.27 million lives have been lost, movement curtailed and social dynamics disrupted. The golden standard for getting samples SARS-CoV-2 detection through oral- nasopharyngeal swab, this method of sample collection invasive uncomfortable, thus stigmatized the general population,...
Banana (Musa spp.) is a nutrient rich crop grown in small and large scale across the globe. It carbohydrates, vitamins minerals thus, it may serve as source of nutrition low resourced regions such Tharaka Nithi County, Kenya. However, banana production many areas faced with biotic constraints Xanthomonas wilt (BXW) disease caused by campestris pv. musacearum. The pathogen attacks photosynthetic leaves young fruits, reducing palatability marketability. There currently scanty information on...
Neglect and under-utilization of legumes such as soybeans bambara groundnuts are the reason for increased food insufficiency in Lake Victoria basin. Diversification into cropping systems basin ensures protein rich diets improved soil fertility. This study was carried out to evaluate agronomic characters two soybean varieties groundnut landraces cultivated on different soils Seeds landraces; Kakamega Cream (KAKC) Busia Brown (BUSB) were collected from farmers counties, respectively Kenya....
Background. Aquatic insect community structure is dynamic due to threats by anthropogenic activities coupled with changing climatic conditions. The insect’s survival dependent on the substrate, water quality, and environmental effects. changes in quality influence their distribution abundance are reflected spatial temporal trends. This study sought document effects of variation aquatic insects Winam Gulf Lake Victoria, Kenya. Materials Methods. Systematic random design was used sampling,...