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Papers by Gizachew Zeleke
Ethnopharmacological relevance: An emerging of antibiotic resistance strains of bacteria brings m... more Ethnopharmacological relevance: An emerging of antibiotic resistance strains of bacteria brings most serious public health problems. It is therefore, important to look for more effective, safer and less toxic alternative options of treatment. Development of new antibacterial agents from plant extract is among the proposed solutions to overcome this problem. Aim of the study: To study the antibacterial activity evaluation of Leucas aspera (Willd.) Link. (L. aspera), Solanum incanum L. (S. incanum), and Hydnora johanis A.B. (H. johanis) against Escherichia coli (E. coli), Salmonella typhimurium (S. typhimurium), Staphylococcus aureus (S. aureus) and Enterococcus feacalis (E. feacalis) in comparison with GEN (Gentamicin), CIPRO (Ciprofloxacin), PCN (Penicillin), Ampicillin (AMP) and TCN (Tetracycline). Materials and Methods: Following plant material collection and extraction; disc diffusion method was used for antibacterial activity test. Results: The plants showed a promising broad sp...
life, 2021
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
World Journal of Agricultural Research, 2020
The drylands of Ethiopia are well known for their natural gum and resin producing tree and shrub ... more The drylands of Ethiopia are well known for their natural gum and resin producing tree and shrub species such as Acacia, Boswellia, Commiphora and Sterculia. The production and trade volumes of gums and resins in the country showed a declining trend since 2010. The present review work is focused on availability of alternative underutilized tree and shrub species to indicate the diverse gum and resin market opportunities. Several Sub-Saharan African countries are producing gum and resin products from diversified species. Gum arabic is collected from Acacia senegal (L) Willd, Acacia seyal DEL, and Acacia polyacantha Willd species. Three countries namely Sudan, Nigeria, Chad contribute about 97% to the international market, while Ethiopia's contribution is 0.9%. World demand for karaya gum from Sterculia setigera DEL is about 7,000 tonne and in Africa, Senegal is the leading exporter. Despite the huge resources of A. senegal, A. seyal and A. polyacantha, Ethiopia producing very low...
Sustainability
Senegalia senegal (L.) Britton is a multi-purpose dryland tree species that produces gum arabic, ... more Senegalia senegal (L.) Britton is a multi-purpose dryland tree species that produces gum arabic, a commercially valuable product. However, this resource is underused in Ethiopian dryland areas. The aim of this study was to evaluate the population status and potential gum yield of S. senegal growing in natural stands in South Omo Zone, Ethiopia. Forty-five sample plots, each measuring 20 × 20 m, were established at 500 m intervals along transects, with 1 m2 subplots located within the main plots to determine regeneration. S. senegal trees with a diameter at breast height of between 2 and 12 cm were most prevalent. Forty-two tree species were associated with S. senegal, of which 16 were gum- and resin-producing species. S. senegal was positively associated with Vachellia tortilis, Senegalia mellifera, Vachellia nilotica, Commiphora edulis, and Dobera glabra. Senegalia senegal comprised approximately 35% of regenerating trees. The maximum gum arabic yield obtained was 3948 g tree−1. Li...
Forests
Ethnomycological information was gathered by conducting semi-structured interviews with members o... more Ethnomycological information was gathered by conducting semi-structured interviews with members of the Amhara, Agew, and Sidama ethnic groups in Ethiopia. A total of 300 individuals were involved in this study. Forest excursions were also undertaken to investigate the habitat and to identify useful wild mushroom species present in the study areas. A total of 24 useful wild mushroom species were identified. Among the three ethnic groups, the Sidama have the most extensive ethnomycological knowledge and over seven vernacular names for useful fungal species were recorded for this group. Collecting mushrooms is common practice among the Sidama and usually carried out by women and children during the main rainy season from June to September. Useful mushrooms are collected in natural forests, plantation forests, grazing areas, home gardens, and swampy areas. In terms of medicinal uses, Lycoperdon perlatum Pers. and Calvatia rubroflava (Cragin) Lloyd. are well-known treatments for wounds a...
Forests
Ethnomycological information was gathered by conducting semi-structured interviews with members o... more Ethnomycological information was gathered by conducting semi-structured interviews with members of the Amhara, Agew, and Sidama ethnic groups in Ethiopia. A total of 300 individuals were involved in this study. Forest excursions were also undertaken to investigate the habitat and to identify useful wild mushroom species present in the study areas. A total of 24 useful wild mushroom species were identified. Among the three ethnic groups, the Sidama have the most extensive ethnomycological knowledge and over seven vernacular names for useful fungal species were recorded for this group. Collecting mushrooms is common practice among the Sidama and usually carried out by women and children during the main rainy season from June to September. Useful mushrooms are collected in natural forests, plantation forests, grazing areas, home gardens, and swampy areas. In terms of medicinal uses, Lycoperdon perlatum Pers. and Calvatia rubroflava (Cragin) Lloyd. are well-known treatments for wounds a...
Asian Journal of Earth Sciences
Asian Journal of Earth Sciences
Ethnopharmacological relevance: An emerging of antibiotic resistance strains of bacteria brings m... more Ethnopharmacological relevance: An emerging of antibiotic resistance strains of bacteria brings most serious public health problems. It is therefore, important to look for more effective, safer and less toxic alternative options of treatment. Development of new antibacterial agents from plant extract is among the proposed solutions to overcome this problem. Aim of the study: To study the antibacterial activity evaluation of Leucas aspera (Willd.) Link. (L. aspera), Solanum incanum L. (S. incanum), and Hydnora johanis A.B. (H. johanis) against Escherichia coli (E. coli), Salmonella typhimurium (S. typhimurium), Staphylococcus aureus (S. aureus) and Enterococcus feacalis (E. feacalis) in comparison with GEN (Gentamicin), CIPRO (Ciprofloxacin), PCN (Penicillin), Ampicillin (AMP) and TCN (Tetracycline). Materials and Methods: Following plant material collection and extraction; disc diffusion method was used for antibacterial activity test. Results: The plants showed a promising broad sp...
life, 2021
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
World Journal of Agricultural Research, 2020
The drylands of Ethiopia are well known for their natural gum and resin producing tree and shrub ... more The drylands of Ethiopia are well known for their natural gum and resin producing tree and shrub species such as Acacia, Boswellia, Commiphora and Sterculia. The production and trade volumes of gums and resins in the country showed a declining trend since 2010. The present review work is focused on availability of alternative underutilized tree and shrub species to indicate the diverse gum and resin market opportunities. Several Sub-Saharan African countries are producing gum and resin products from diversified species. Gum arabic is collected from Acacia senegal (L) Willd, Acacia seyal DEL, and Acacia polyacantha Willd species. Three countries namely Sudan, Nigeria, Chad contribute about 97% to the international market, while Ethiopia's contribution is 0.9%. World demand for karaya gum from Sterculia setigera DEL is about 7,000 tonne and in Africa, Senegal is the leading exporter. Despite the huge resources of A. senegal, A. seyal and A. polyacantha, Ethiopia producing very low...
Sustainability
Senegalia senegal (L.) Britton is a multi-purpose dryland tree species that produces gum arabic, ... more Senegalia senegal (L.) Britton is a multi-purpose dryland tree species that produces gum arabic, a commercially valuable product. However, this resource is underused in Ethiopian dryland areas. The aim of this study was to evaluate the population status and potential gum yield of S. senegal growing in natural stands in South Omo Zone, Ethiopia. Forty-five sample plots, each measuring 20 × 20 m, were established at 500 m intervals along transects, with 1 m2 subplots located within the main plots to determine regeneration. S. senegal trees with a diameter at breast height of between 2 and 12 cm were most prevalent. Forty-two tree species were associated with S. senegal, of which 16 were gum- and resin-producing species. S. senegal was positively associated with Vachellia tortilis, Senegalia mellifera, Vachellia nilotica, Commiphora edulis, and Dobera glabra. Senegalia senegal comprised approximately 35% of regenerating trees. The maximum gum arabic yield obtained was 3948 g tree−1. Li...
Forests
Ethnomycological information was gathered by conducting semi-structured interviews with members o... more Ethnomycological information was gathered by conducting semi-structured interviews with members of the Amhara, Agew, and Sidama ethnic groups in Ethiopia. A total of 300 individuals were involved in this study. Forest excursions were also undertaken to investigate the habitat and to identify useful wild mushroom species present in the study areas. A total of 24 useful wild mushroom species were identified. Among the three ethnic groups, the Sidama have the most extensive ethnomycological knowledge and over seven vernacular names for useful fungal species were recorded for this group. Collecting mushrooms is common practice among the Sidama and usually carried out by women and children during the main rainy season from June to September. Useful mushrooms are collected in natural forests, plantation forests, grazing areas, home gardens, and swampy areas. In terms of medicinal uses, Lycoperdon perlatum Pers. and Calvatia rubroflava (Cragin) Lloyd. are well-known treatments for wounds a...
Forests
Ethnomycological information was gathered by conducting semi-structured interviews with members o... more Ethnomycological information was gathered by conducting semi-structured interviews with members of the Amhara, Agew, and Sidama ethnic groups in Ethiopia. A total of 300 individuals were involved in this study. Forest excursions were also undertaken to investigate the habitat and to identify useful wild mushroom species present in the study areas. A total of 24 useful wild mushroom species were identified. Among the three ethnic groups, the Sidama have the most extensive ethnomycological knowledge and over seven vernacular names for useful fungal species were recorded for this group. Collecting mushrooms is common practice among the Sidama and usually carried out by women and children during the main rainy season from June to September. Useful mushrooms are collected in natural forests, plantation forests, grazing areas, home gardens, and swampy areas. In terms of medicinal uses, Lycoperdon perlatum Pers. and Calvatia rubroflava (Cragin) Lloyd. are well-known treatments for wounds a...
Asian Journal of Earth Sciences
Asian Journal of Earth Sciences