Tesfaye Alemu

ORCID: 0000-0002-0332-8023
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About
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Research Areas
  • Plant Pathogens and Fungal Diseases
  • Plant-Microbe Interactions and Immunity
  • Legume Nitrogen Fixing Symbiosis
  • Agricultural pest management studies
  • Genetic and Environmental Crop Studies
  • Plant Pathogens and Resistance
  • Fungal Biology and Applications
  • Plant tissue culture and regeneration
  • Mycorrhizal Fungi and Plant Interactions
  • Rangeland Management and Livestock Ecology
  • Flowering Plant Growth and Cultivation
  • Essential Oils and Antimicrobial Activity
  • Biofuel production and bioconversion
  • Entomopathogenic Microorganisms in Pest Control
  • Nematode management and characterization studies
  • Agriculture and Rural Development Research
  • Agronomic Practices and Intercropping Systems
  • Probiotics and Fermented Foods
  • Livestock Farming and Management
  • Enzyme Production and Characterization
  • Ruminant Nutrition and Digestive Physiology
  • Antimicrobial Resistance in Staphylococcus
  • Chromium effects and bioremediation
  • Animal Nutrition and Physiology
  • Crop Yield and Soil Fertility

Addis Ababa University
2014-2025

Adama Science and Technology University
1999-2023

Ethiopian Biodiversity Institute
2018-2022

Ethiopian Institute of Agricultural Research
2015-2021

Coffee Research Institute
2020

Agricultural Research Center
2011-2015

Utah State University
2015

Environmental contamination with dichlorodiphenyltrichloroethane (DDT) has sever effects on the ecosystem worldwide. DDT is a recalcitrant synthetic chemical high toxicity and lipophilicity. It also bioaccumulated in food chain causes genotoxic, estrogenic, carcinogenic, mutagenic aquatic organisms humans. Microbial remediation mechanism its enzymes are very important for removing from environment. main residues dichlorodiphenyldichloroethylene (DDE) dichlorodiphenyldichloroethane (DDD) can...

10.1016/j.btre.2024.e00835 article EN cc-by Biotechnology Reports 2024-03-11

Faba bean (Vicia faba L.) cultivation is highly challenged by black root rot disease (Fusarium solani) in high lands of Ethiopia. To ensure sustainable production beans, searching for eco-friendly management options necessary to curb the progress timely. The indigenous biocontrol agents that suit local environments may effectively strive with in-situ microorganisms and suppress pathogen strains. This study aimed screen antagonistic compatible Trichoderma Pseudomonas strains against Fusarium...

10.1186/s12866-021-02181-7 article EN cc-by BMC Microbiology 2021-04-17

Agro-industrial wastes suitable for economical and high mass production of novel Trichoderma species under solid-state fermentation were identified by optimizing the culture conditions using a mathematical model evaluating viability formulated bio-product. Fourteen inexpensive, locally available, organic substrates cereals examined one-factor-at-a-time experiment. The fungus colonized nearly all after 21 days incubation, although degree colonization conidiation varied among substrates. A...

10.3390/microorganisms9081675 article EN cc-by Microorganisms 2021-08-06

Fungi of the genus Trichoderma have been marketed for management diseases crops. However, some species may produce toxic secondary metabolites and it should receive due attention to ensure human safety. In this study, we investigated in vitro antagonistic potential T. asperellum AU131 longibrachiatum AU158 as microbial biocontrol agents (MBCAs) against Fusarium xylarioides associated mechanism with bioactive substances. Swiss albino mice were used evaluate vivo toxicity pathogenicity...

10.1371/journal.pone.0274062 article EN cc-by PLoS ONE 2022-09-23

Phytophthora capsici is one of the most devastating fungal pathogens, causing severe diseases that lead to economic loss in pepper industry. As a result infections, chemical approach becoming more popular. Biological control, on other hand, better suited controlling pathogens. The biological control significantly reduces problems associated with applications while restoring natural environmental balance. result, overall findings indicate certain bacterial isolates play beneficial role lytic...

10.1155/2022/6778352 article EN cc-by BioMed Research International 2022-09-26

Staphylococcus (S.) aureus is one of the etiologies bovine mastitis, hindering milk production and productivity in dairy farms. This study was aimed at assessing distribution mastitis isolation rate S. milked cows West Shewa Zone. The clinical diagnosed by physical methods including observation palpation, whereas subclinical tested California test (CMT). All for were aseptically sampled (teat-milk) bacteriology. bacterium primarily identified based on colony characterization, catalase,...

10.1155/2023/3142231 article EN cc-by Veterinary Medicine International 2023-03-28

Septoria tritici blotch (STB), caused by the hemibiotrophic fungus Zymoseptoria tritici, is a serious threat to global wheat production, and major bottleneck production in Ethiopia. Accurate identification analysis of pathogen's genetic structure helps develop robust STB management strategies. This study aimed at molecular 200 isolates Z. representing six populations central south-eastern regions A total 165 were confirmed Sanger sequencing internal transcribed spacer (ITS) region nuclear...

10.3389/fpls.2025.1505455 article EN cc-by Frontiers in Plant Science 2025-04-09

Inoculation of plant growth-promoting rhizobacteria (PGPR) improves the growth, yield, and nutrient uptake, as well rhizosphere fertility, without harming environment human health. This study aimed to examine effect either individual or consortium PGP bacterial inoculation on grain uptake teff varieties. Three potential PGPR strains (i.e., Pseudomonas fluorescens biotype G , Enterobacter cloacae ss disolvens Serratia marcescens ) were used for this study. Field evaluation was carried out in...

10.3389/fmicb.2022.896770 article EN cc-by Frontiers in Microbiology 2022-10-21

Dichlorodiphenyltrichloroethane is an organo-chlorine insecticide used for malaria and agricultural pest control, but it the most persistent pollutant, endangering both human environmental health. The primary aim of research to screen, characterize, assess putative fungi that degrade DDT mycoremediation. Samples soil wastewater were gathered from Addis Ababa, Koka, Ziway. Fungi isolated purified using potato dextrose media. Matrix-Assisted Laser Desorption, Ionization, Flight Duration...

10.1016/j.heliyon.2024.e33289 article EN cc-by Heliyon 2024-06-01

ABSTRACT The partial nucleotide sequence of the coat protein (CP) gene Ethiopian isolates chickpea chlorotic stunt virus (CpCSV, genus Polerovirus ), beet western yellows (BWYV, and soybean dwarf (SbDV, Luteovirus ) was determined from lentil plants showing yellowing, stunting, reddening symptoms. Comparative analysis CpCSV obtained five showed 94.9%–100% 91.9%–98.7% identity with each other reference isolates, respectively. One isolate (MZ043728) a close relationship serotype II while...

10.1002/leg3.70024 article EN cc-by Legume Science 2025-02-17

<title>Abstract</title> This study was conducted in Addis Ababa, surrounding peri-urban and urban feed markets to assess the prevalence of aflatoxin B1and identify fungal diversity feeds. Two hundred ninety samples oil seed cakes formulated feeds were collected. The results indicated that, 92% poultry ration, 72% dairy 66% linseed cake, 64% noug 61% cotton 36% soybean cake contaminated with B1 exceeding permissible level (20 μg/kg). To evaluate diversity, genomic DNA extracted, pooled by...

10.21203/rs.3.rs-6269447/v1 preprint EN Research Square (Research Square) 2025-04-11

Orange waste consisting of both peel and pulp is highly susceptible to hydrolysis by mixtures cellulolytic pectinolytic enzymes which give it potential as feedstock for biological conversion value added products.  Whereas the relatively rich in carbohydrate, the peel consists 16.9% soluble sugars, 9.21% cellulose, 10.5% hemicellulose 42.5% pectin most important components. Thus,Aspergillus niger (KA-06) and Chaetomium spp (KC-06) isolated from municipal were investigated their ability...

10.5897/ajmr.9000659 article EN African Journal of Microbiology Research 2010-06-18

Common bean production is being constrained by a number of diseases. The survey was carried out to prioritize common diseases and their associations with cropping areas cultural practices. A stratified random assessment on 114 farmer's fields conducted in Ethiopia's four producing zones (Metekel, Sidama, Wolaita, Halaba). Data are collected randomly disease severity, incidence levels, agronomic results revealed that eleven foliar were found affect production. Among them, the maximum severity...

10.1016/j.jafr.2023.100765 article EN cc-by-nc-nd Journal of Agriculture and Food Research 2023-08-31

Objective: Finger millet blast disease caused by Pyricularia grisea (Magnaporthe grisea) causes significant yield loss in Ethiopia. This study was conducted to isolate, identify and characterize the pathogen (using morphological, physiological biochemical methods).Methodology results: A total of 42 P. isolates from five different finger producing regions Ethiopia were collected diseased plants wild relatives. Based on their geographical distribution, virulence comparative growth culture...

10.4314/jab.v74i1.2 article EN Journal of Applied Biosciences 2014-03-13
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