Egyptian soils
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The current study aimed to isolate Streptomyces species from Egyptian arid soil, efficient in biosurfactant production. Fifty isolates of Streptomyces were obtained from arid soil in Egypt.
9p schindler 30-12-2021 14 0 Download
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In this study, the adult male B. polychresta as a model to evaluate the exposure risks in soil insects inhabiting three different agricultural locations. The HMs concentration and contamination indices within the soil and beetles from study sites were assessed. Moreover, the enzymatic changes and TPc were evaluated in the beetle tissue (gut, fat body, and testis) in these sites. Furthermore, we check the possible relationship interactions between enzyme activities; against HMs accumulation in the whole body tissue of beetles.
12p schindler 30-12-2021 31 0 Download
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Results of the batch fermentation showed an earlier production of CHO enzyme with 4% increase in activity compared to that obtained from shake flask cultures indicated that Streptomyces sp. strain NHIA_CH5 could be a potential source of CHO enzyme for commercial purpose.
7p mudbound 10-12-2021 7 1 Download
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Actinomycetes have got considerable attention worldwide due to the production of many useful bioactive metabolites. In the present study, the antimicrobial potential of novel Actinomycetes has been evaluated by the initial screening of seven rhizosphere samples in Egypt. The primary and secondary screening were performed against Bacillus cereus (ATCC33018), and E.coli O157 (ATCC93111) as model strains of Gram positive and Gram negative species, respectively.
12p trinhthamhodang9 16-12-2020 19 2 Download
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A novel Streptomyces sp. Ru87 was isolated from Egyptian soil and showed significant inhibition activities against a number of food and blood borne pathogens. Morphological and chemotaxonomic characteristics showed that Ru87 belongs to genus Streptomyces. 16 S rRNA gene sequence (KY775360), showed 98% identity with Streptomyces cacaoi strain NBRC 12748. However, phylogenetic analysis indicated that it is distinct from the known species. A cultured extract of this strain inhibits the growth of Staphylococcus aureus and some other foodborne and blood borne pathogens.
18p nguathienthan8 20-10-2020 5 2 Download
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This study aimed to characterise Egyptian desert vine flora and compare it with that of deserts in other continents, such as Australia and North America. Specifically, 5 common climbing desert plants (Citrullus colocynthis, Cocculus pendulus, Cucumis prophetarum, Pergularia tomentosa, and Periploca angustifolia) were selected for this study.
20p vibasque27 27-03-2019 16 2 Download
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A total of 35 Rhizobium sp. were isolated from the root nodules of Trifolium alexandrinum (Egyptian clover) irrigated with treated tannery effluents and characterised on the basis of morphological, cultural and biochemical characteristics. Rhizospheric soils and plant parts were also analysed for metal concentrations by atomic absorption spectrophotometry.
8p vitamix 15-02-2019 24 1 Download