Alemayehu Getahun Kassa (PhD)

@wcu.edu.et

College of Natural and Computational Sciences, Department of Biology, Wachemo University

Alemayehu Getahun Kassa (PhD)


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https://researchid.co/alex212121

EDUCATION

Dr. Alemayehu Getahun is currently working at Department of Biology, Wachemo University. Alemayehu does research in Environmental, Agricultural, Soil, Microbiology: Ecological restoration with organic amendments and Bacterial inoculation in the rehabilitation of degraded habitat. He is also served as Wachemo University IRB secretary.

RESEARCH, TEACHING, or OTHER INTERESTS

Applied Microbiology and Biotechnology, Agricultural and Biological Sciences, Food Science, Agronomy and Crop Science
11

Scopus Publications

180

Scholar Citations

8

Scholar h-index

8

Scholar i10-index

Scopus Publications

  • A broad host spectrum fungus, Piriformospora indica: a promising candidate for crop improvement in stressed environments
    Alemayehu Getahun, Diriba Muleta
    Decoding Plant Environment Microbiome Interactions in Stress Resilient Agriculture, 2026
  • Plant endophytic microbiome: importance in crop production
    Alemayehu Getahun, Diriba Muleta
    Decoding Plant Environment Microbiome Interactions in Stress Resilient Agriculture, 2026
  • The effect of bacterial inoculation and organic amendments for the establishment of some multipurpose trees on degraded land
    Alemayehu Getahun, Diriba Muleta, Solomon Kiros, Fassil Assefa
    Discover Applied Sciences, 2025
    Rehabilitating poor soil can be achieved in part by planting trees. In the field, bio-augmentation and organic amendments (OAs) promote plant establishment and growth. The experimental site is a fragile land due to its intrinsic characteristics and overexploitation which makes them abandoned (bare land without three). Biochar (coffee husk), compost (recycled floriculture) and manure (farmyard manure) are used as OAs. Moreover, mixed bacterial strains i.e., Pseudomonas fluorescent FB-49, Pseudomonas putida BS-19, Paenibacillus polymyxa BS-50, and Acinetobacter calcoaceticus BS-27 played a potential role in degraded land restoration. Hence, this study was initiated to assess the role of organic amendments and bacterial inoculations (BI) on tree establishment on degraded soil under field conditions. Six plots 41 m x 4 m were established to amend soil with organic matter and bacterial inoculation (BI) of the transplanted plants quarterly. Plots receiving OAs showed the highest counts of bacteria (21.66), actinomycetes (2.29), and fungi (0.82) x 105 colony-forming unit g−1 soil. Also, there were significant (p ≤ 0.05) increases in stem height (1, 0.42, and 0.39 m/plant), girths (12.0, 2.28, and 11.33 cm/plant), and branch numbers (5, 4, and 4.3/plant) on transplanted apple, acacia, and prunus respectively, compared to the control. The highest survival rate was observed on an apple tree (Malus domestica) (80%) and acacia (Acacia abyssinica) (66%). The result concluded that using OAs and BIs enhanced the growth and establishment of trees for the successful rehabilitation of degraded land. Degraded soils become more productive with organic amendments. Organic amendments improve microbial populations that has positive impact on soil fertility. Plant growth promoting rhizobacteria (PGPR) and organic amendments enhance the growth of multipurpose trees in degraded soil. There is strong additive effect between organic amendments and bacterial inoculations as they transformed unproductive soils into fruitful and productive soils.
  • Seasonal effects on surface water quality in the Awetu River, Ethiopia
    Mohammedsalih Kadir Gobana, Alemayehu Haddis Getahun, Dessalegn Dadi Olani
    African Journal of Aquatic Science, 2025
  • Insecticidal Activities of Plants Extract Against Malaria Vectors in Hadiya Zone, Ethiopia
    Anmut Assemie, Dasash Mulu, Alemayehu Getahun, Negalign Awoke, Workineh Muluken, Tigist Enyew, Amha Gebremariam, Yihenew Aynalem
    Journal of Parasitology Research, 2025
    Environmental changes due to global warming and human activities have negatively impacted malaria vector control in Hadiya zone, Ethiopia. Plants contain anthraquinoes. Flavonoids, glycosides, phenol, saponin, steroids, tannin, and terpenes that are target specific, rapidly biodegradable, ecofriendly, and less toxic to human health. The objective of the study was to evaluate the insecticidal activities of Azadirachta indica (neem) and Allium sativum L. (garlic) ethanol extracts against malaria vectors in the study area. Then, 20 g from each (A. indica and A. sativum L.) were extracted separately by ethanol solvents. The phytochemical analysis was evaluated from the crude sample based on standard methods. Then, insecticidal activities were evaluated by introducing the fourth instar larva at 50, 100, 150, 200, and 250 ppm concentrations, and data were subjected to probit analysis to determine the LC50 and chi‐square test to check the significance of the mortality by R statistical software. The presence of phytochemical tests such as alkaloids, saponin, tannin, phenol, anthraquinoes, flavonoids, glycosides, steroids, terpenes, and flavonoids was obtained. The mortality of malaria vectors due to ethanol extract of A. indica and A. sativum was observed. The highest (90.66%) mortality was observed in the ethanol extract of A. sativum at 250 ppm concentration. A. sativum extracts have a significant effect only on the mortality of Anopheles gambiae s.l (X2 = 13.6, p = 0.008687) and Anopheles pharoensis (X2 = 11.002, p = 0.02655), but A. indica have a significant effect only on the mortality of An.pharoensis (X2 = 14.26, p = 0.00651). The lowest LC50 (39 ppm) was observed in the ethanol extract of A. sativum. So, A. sativum extract was highly toxic than A. indica extract and more effective in the reduction of malaria vectors but further studies will be conducted to determine the insecticidal activities at pupa and adult stages.
  • Synthesis, Structural Characterization, and Computational Studies of Novel Co(II) and Zn(II) Fluoroquinoline Complexes for Antibacterial and Antioxidant Activities
    Tadewos Damena, Tegene Desalegn, Sadhna Mathura, Alemayehu Getahun, Dereje Bizuayehu, Mamaru Bitew Alem, Shiferaw Gadisa, Digafie Zeleke, Taye B. Demissie
    ACS Omega, 2024
    High Resolution Image Download MS PowerPoint Slide Research into heterocyclic ligands has increased in popularity due to their versatile applications in the biomedical field. Quinoline derivatives with their transition metal complexes are popular scaffolding molecules in the ongoing pursuit of newer and more effective bioactive molecules. Subsequently, this work reports on the synthesis and possible biological application of new Zn(II) and Co(II) complexes with a bidentate quinoline derivative ligand (H 2 L ), [(H 2 L ):( E )-2-(((6-fluoro-2-((2-hydroxyethyl)amino)quinolin-3-yl)methylene)amino)ethanol]. The ligand and its metal complexes were structurally characterized by spectroscopic methods ( 1 H NMR, 13 C NMR, Fourier transform infrared (FTIR), UV–vis, fluorescence, and mass spectroscopy), as well as by thermogravimetric and elemental analysis methods. The spectroscopic findings were further supported by density functional theory (DFT) and time-dependent (TD)-DFT calculations. The biological application was examined by investigating the inhibitory action of the complexes against bacterial strains using diffusion and agar dilution methods, and their profiles against two Gram-positive and Gram-negative bacterial strains were supported by molecular docking analysis. To rationalize the in vitro activity and establish the possible mechanism of action, the interactions and binding affinity of the ligand and complexes were investigated against three different bacterial enzymes ( Escherichia coli DNA gyrase (PDB ID 6f86 ), E. coli dihydrofolate reductase B (PDB ID: 7r6g ), and Staphylococcus aureus tyrosyl-tRNA synthetase (PDB ID: 1JIJ )) using AutoDock with the standard protocol. The MIC value of 0.20 μg/mL for zinc complex against E. coli and associated binding affinities −7.2 and −9.9 kcal/mol with DNA gyrase (PDB ID 6f86 ) and dihydrofolate reductase B (PDB ID: 7r6g ), as well as the MIC value of 2.4 μg/mL for cobalt(II) complex against Staphylococcus aureus and the associated binding affinity of −10.5 kcal/mol with tyrosyl-tRNA synthetase (PDB ID: 1JIJ ), revealed that the complexes’ inhibitory actions were strong and comparable with those of the standard drug in the experiments. In addition, the ability of the new quinoline-based complexes to scavenge 1,1-diphenyl-picrylhydrazyl radicals was investigated; the findings suggested that the complexes exhibit potent antioxidant activities, which may be of therapeutic significance.
  • Advances in biological treatment technologies for some emerging pesticides
    Buzayehu Desisa, Alemayehu Getahun, Diriba Muleta
    Pesticides Bioremediation, 2022
  • Genetic and metabolic diversities of rhizobacteria isolated from degraded soil of Ethiopia
    Alemayehu Getahun, Solomon Kiros, Diriba Muleta, Fassil Assefa
    Heliyon, 2020
    Genetic and metabolic diversities of rhizobacteria are the fundamental sources for their adaptation to cope with abiotic and biotic stresses in order to enhance growth and health of plants in the soil. Thus, this study was initiated to assess the genetic and metabolic diversities of rhizobacteria isolated from plants grown in degraded soil through BOX-PCR and partial sequencing of 16S rRNA genes. A total of eighty isolates were recovered and subjected to phenotypic profiling of carbohydrate and amino acid utilization, BOX PCR and 16S rRNA profiling. The phenotypic profiling showed remarkable metabolic versatility with Ochrobactrum spp, Pseudomonas spp and Klebsiella spp, and BOX-PCR showed greater discriminatory power for fingerprinting of rhizobacterial isolates with high degree of polymorphism. Bacillus spp showed the highest Simpson's diversity Index. The 16S rRNA genes sequence assigned the rhizobacteria to phyla Proteobacteria with Gammaproteobacteria and Alphaproteobacteria classes and Firmicutes with Bacilli class. The data also showed that the most dominant species were Pseudomonas and Ochrobactrum. Genetic and metabolic diversities of the rhizobacterial isolates reveal the potential of these microbes for plant growth improvement under water deficient soil after testing other inoculant traits.
  • THE EFFECT OF CLIMATE CHANGE ON THE DISTRIBUTION AND DIVERSITY OF SOIL MICROORGANISMS AND THEIR ADAPTATION MECHANISMS
    Encyclopedia of Climate Change Volume 11 11 Volume Set, 2020
  • Plant Growth-Promoting Rhizobacteria Isolated from Degraded Habitat Enhance Drought Tolerance of Acacia (Acacia abyssinica Hochst. Ex benth.) seedlings
    Alemayehu Getahun, Diriba Muleta, Fassil Assefa, Solomon Kiros
    International Journal of Microbiology, 2020
    Drought stress (DS) is the most impacting global phenomenon affecting the ecological balance of a particular habitat. The search for potential plant growth-promoting rhizobacteria (PGPR) capable of enhancing plant tolerance to drought stress is needed. Thus, this study was initiated to evaluate the effect of inoculating Acacia abyssinica seedlings with PGPR isolated from rhizosphere soil of Ethiopia to enhance DS tolerance. The strains were selected based on in vitro assays associated with tolerance to drought and other beneficial traits such as salinity, acidity, temperature, heavy metal tolerances, biofilm formation, and exopolysaccharide (EPS) production. The strains with the best DS tolerance ability were selected for the greenhouse trials with acacia plants. The results indicate that out of 73 strains, 10 (14%) were completely tolerant to 40% polyethylene glycol. Moreover, 37% of the strains were strong biofilm producers, while 66 (90.41%) were EPS producers with a better production in the medium containing sucrose at 28 ± 2°C and pH 7 ± 0.2. Strains PS-16 and RS-79 showed tolerance to 11% NaCl. All the strains were able to grow in wider ranges of pH (4–10) and temperature (15–45°C) and had high tolerance to heavy metals. The inoculated bacterial strains significantly ( p ≤ 0.05 ) increased root and shoot length and dry biomass of acacia plants. One of the strains identified as P. fluorescens strain FB-49 was outstanding in enhancing DS tolerance compared to the single inoculants and comparable to consortia. Stress-tolerant PGPR could be used to enhance acacia DS tolerance after testing other phytobeneficial traits.
  • Field application of rhizobial inoculants in enhancing faba bean production in acidic soils: An innovative strategy to improve crop productivity
    Alemayehu Getahun, Diriba Muleta, Fassil Assefa, Solomon Kiros
    Salt Stress Microbes and Plant Interactions Causes and Solution Volume 1, 2019

RECENT SCHOLAR PUBLICATIONS

  • A broad host spectrum fungus, Piriformospora indica: a promising candidate for crop improvement in stressed environments
    A Getahun, D Muleta
    Decoding Plant–Environment–Microbiome Interactions in Stress-Resilient … , 2026
    2026.0
  • Plant endophytic microbiome: importance in crop production
    A Getahun, D Muleta
    Decoding Plant–Environment–Microbiome Interactions in Stress-Resilient … , 2026
    2026.0
  • The effect of bacterial inoculation and organic amendments for the establishment of some multipurpose trees on degraded land
    A Getahun, D Muleta, S Kiros, F Assefa
    Discover Applied Sciences 7 (8), 858 , 2025
    2025.0
    Citations: 1
  • Insecticidal Activities of Plants Extract Against Malaria Vectors in Hadiya Zone, Ethiopia
    A Assemie, D Mulu, A Getahun, N Awoke, W Muluken, T Enyew, ...
    Journal of Parasitology Research 2025 (1), 9980264 , 2025
    2025.0
  • Synthesis, structural characterization, and computational studies of novel Co (II) and Zn (II) fluoroquinoline complexes for antibacterial and antioxidant activities
    T Damena, T Desalegn, S Mathura, A Getahun, D Bizuayehu, MB Alem, ...
    ACS omega 9 (34), 36761-36777 , 2024
    2024.0
    Citations: 11
  • African Moringa stenopetala Plant: An Emerging Source of Novel Ingredients for Plant-Based Foods
    AT Tefera, DW Dadi, A Getahun, A Abiyu, A Utioh, D Muleta, RE Aluko, ...
    Plant-Based Diet , 2023
    2023.0
    Citations: 3
  • Phenotypic properties of some acid tolerant Faba bean (Vicia faba L.) rhizobia from central highlands of Ethiopia
    A Getahun, D Muleta
    Ethiopian Journal of Biological Sciences 22 (1), 61–88-61–88 , 2023
    2023.0
  • Advances in biological treatment technologies for some emerging pesticides
    B Desisa, A Getahun, D Muleta
    Pesticides bioremediation, 259-280 , 2022
    2022.0
    Citations: 11
  • Phytobeneficial traits of Rhizobacteria isolated from degraded soil and evaluate their effect in augmentation of Acacia (Acacia abyssinica Hochst. Ex Benth) seeds germination.
    A Getahun, D Muleta, F Assefa, S Kiros, M Hungria
    2022.0
    Citations: 4
  • Genetic and metabolic diversities of rhizobacteria isolated from degraded soil of Ethiopia
    A Getahun, S Kiros, D Muleta, F Assefa
    Heliyon 6 (12) , 2020
    2020.0
    Citations: 11
  • Biochar and other organic amendments improve the physicochemical properties of soil in highly degraded habitat
    A Getahun, D Muleta, F Assefa, S Kiros, M Hungria
    European Journal of Engineering and Technology Research 5 (3), 331-338 , 2020
    2020.0
    Citations: 35
  • Research Article Plant Growth-Promoting Rhizobacteria Isolated from Degraded Habitat Enhance Drought Tolerance of Acacia (Acacia abyssinica Hochst. ex Benth.) Seedlings
    A Getahun, D Muleta, F Assefa, S Kiros
    2020.0
  • Plant Growth‐Promoting Rhizobacteria Isolated from Degraded Habitat Enhance Drought Tolerance of Acacia ( Acacia abyssinica Hochst. ex Benth.) Seedlings
    A Getahun, D Muleta, F Assefa, S Kiros
    International journal of microbiology 2020 (1), 8897998 , 2020
    2020.0
    Citations: 59
  • Field application of rhizobial inoculants in enhancing faba bean production in acidic soils: an innovative strategy to improve crop productivity
    A Getahun, D Muleta, F Assefa, S Kiros
    Salt Stress, Microbes, and Plant Interactions: Causes and Solution: Volume 1 … , 2019
    2019.0
    Citations: 11
  • Microbiological quality and safety of street vended meat sauce in Bahir Dar Town
    AG Kassa, MK Azene
    Journal of Microbiology and Antimicrobials 9 (2), 14-22 , 2017
    2017.0
    Citations: 5
  • Prevalence of Bovine fasciolosis infectionin Hossana municipal abattoir, Southern Ethiopia
    A Getahun, Y Aynalem, A Haile
    J. Nat. Sci. Res , 2017
    2017.0
    Citations: 11
  • Investigation of the potential benefits and risks of probiotics and prebiotics and their synergy in fermented foods
    A Getahun, A Tesfaye, D Muleta
    Singap J Chem Biol 6 (1), 1-16 , 2016
    2016.0
    Citations: 18
  • The Impact of Multidimensional Engagement on Professional Learning Outcomes for secondary school Teachers
    T Bekene, A Sidelil, A Getahun, A Muluye
    Available at SSRN 5810762 , 0
  • Metabolic and Genetic Diversities of Rhizobacteria Isolated from Degraded Soil of Ethiopia
    A Getahun, D Muleta, F Assefa, S Kiros
    Available at SSRN 3614114 , 0

MOST CITED SCHOLAR PUBLICATIONS

  • Plant Growth‐Promoting Rhizobacteria Isolated from Degraded Habitat Enhance Drought Tolerance of Acacia ( Acacia abyssinica Hochst. ex Benth.) Seedlings
    A Getahun, D Muleta, F Assefa, S Kiros
    International journal of microbiology 2020 (1), 8897998 , 2020
    2020.0
    Citations: 59
  • Biochar and other organic amendments improve the physicochemical properties of soil in highly degraded habitat
    A Getahun, D Muleta, F Assefa, S Kiros, M Hungria
    European Journal of Engineering and Technology Research 5 (3), 331-338 , 2020
    2020.0
    Citations: 35
  • Investigation of the potential benefits and risks of probiotics and prebiotics and their synergy in fermented foods
    A Getahun, A Tesfaye, D Muleta
    Singap J Chem Biol 6 (1), 1-16 , 2016
    2016.0
    Citations: 18
  • Synthesis, structural characterization, and computational studies of novel Co (II) and Zn (II) fluoroquinoline complexes for antibacterial and antioxidant activities
    T Damena, T Desalegn, S Mathura, A Getahun, D Bizuayehu, MB Alem, ...
    ACS omega 9 (34), 36761-36777 , 2024
    2024.0
    Citations: 11
  • Advances in biological treatment technologies for some emerging pesticides
    B Desisa, A Getahun, D Muleta
    Pesticides bioremediation, 259-280 , 2022
    2022.0
    Citations: 11
  • Genetic and metabolic diversities of rhizobacteria isolated from degraded soil of Ethiopia
    A Getahun, S Kiros, D Muleta, F Assefa
    Heliyon 6 (12) , 2020
    2020.0
    Citations: 11
  • Field application of rhizobial inoculants in enhancing faba bean production in acidic soils: an innovative strategy to improve crop productivity
    A Getahun, D Muleta, F Assefa, S Kiros
    Salt Stress, Microbes, and Plant Interactions: Causes and Solution: Volume 1 … , 2019
    2019.0
    Citations: 11
  • Prevalence of Bovine fasciolosis infectionin Hossana municipal abattoir, Southern Ethiopia
    A Getahun, Y Aynalem, A Haile
    J. Nat. Sci. Res , 2017
    2017.0
    Citations: 11
  • Microbiological quality and safety of street vended meat sauce in Bahir Dar Town
    AG Kassa, MK Azene
    Journal of Microbiology and Antimicrobials 9 (2), 14-22 , 2017
    2017.0
    Citations: 5
  • Phytobeneficial traits of Rhizobacteria isolated from degraded soil and evaluate their effect in augmentation of Acacia (Acacia abyssinica Hochst. Ex Benth) seeds germination.
    A Getahun, D Muleta, F Assefa, S Kiros, M Hungria
    2022.0
    Citations: 4
  • African Moringa stenopetala Plant: An Emerging Source of Novel Ingredients for Plant-Based Foods
    AT Tefera, DW Dadi, A Getahun, A Abiyu, A Utioh, D Muleta, RE Aluko, ...
    Plant-Based Diet , 2023
    2023.0
    Citations: 3
  • The effect of bacterial inoculation and organic amendments for the establishment of some multipurpose trees on degraded land
    A Getahun, D Muleta, S Kiros, F Assefa
    Discover Applied Sciences 7 (8), 858 , 2025
    2025.0
    Citations: 1
  • A broad host spectrum fungus, Piriformospora indica: a promising candidate for crop improvement in stressed environments
    A Getahun, D Muleta
    Decoding Plant–Environment–Microbiome Interactions in Stress-Resilient … , 2026
    2026.0
  • Plant endophytic microbiome: importance in crop production
    A Getahun, D Muleta
    Decoding Plant–Environment–Microbiome Interactions in Stress-Resilient … , 2026
    2026.0
  • Insecticidal Activities of Plants Extract Against Malaria Vectors in Hadiya Zone, Ethiopia
    A Assemie, D Mulu, A Getahun, N Awoke, W Muluken, T Enyew, ...
    Journal of Parasitology Research 2025 (1), 9980264 , 2025
    2025.0
  • Phenotypic properties of some acid tolerant Faba bean (Vicia faba L.) rhizobia from central highlands of Ethiopia
    A Getahun, D Muleta
    Ethiopian Journal of Biological Sciences 22 (1), 61–88-61–88 , 2023
    2023.0
  • Research Article Plant Growth-Promoting Rhizobacteria Isolated from Degraded Habitat Enhance Drought Tolerance of Acacia (Acacia abyssinica Hochst. ex Benth.) Seedlings
    A Getahun, D Muleta, F Assefa, S Kiros
    2020.0
  • The Impact of Multidimensional Engagement on Professional Learning Outcomes for secondary school Teachers
    T Bekene, A Sidelil, A Getahun, A Muluye
    Available at SSRN 5810762 , 0
  • Metabolic and Genetic Diversities of Rhizobacteria Isolated from Degraded Soil of Ethiopia
    A Getahun, D Muleta, F Assefa, S Kiros
    Available at SSRN 3614114 , 0