نتایج جستجو برای: positive bacteria compared to gram
تعداد نتایج: 10794291 فیلتر نتایج به سال:
Cyanobacteria, the blue green algae are one of the most diverse groups of Gram-negative photosynthetic prokaryotes widely distributed throughout the world. Cyanobacteria are known to produce a wide range of secondary metabolites with various biological actions. The aim of this study was to test extracts from various cyanobacteria isolated from Geno hot spring, Bandar Abbas (Iran) against a dive...
background: neonatal septicemia is an important cause of morbidity and mortality. the most common pathogens of bacterial sepsis and antibiotic sensitivity patterns may vary in different areas of the world. understanding the etiology of bacteriological profiles is very important and helps to reduce the associated mortality. the aim of this study was to assess prevalence of bacterial and antibiot...
Background and Aim: In recent years study of medicinal plants in order to discover new pharmaceutical supplies against microbial strains has been considered very much. The main objective of this study was to evaluate the antioxidant and antimicrobial activities of shoot aqueous and ethanolic extracts of purple coneflower against some gram positive and gram negative bacteria. Methods:This experi...
Background & Aim: In this study, is done during one-year research on blue–green and green algae for antimicrobial activity in Mashhad suburb. Aqueous, ether, and methanol extracts from 44 species blue – green algae and green algae were examined for antimicrobial properties against four bacteria (tow positive gram bacteria and tow negative gram bacteria) and tow fungous. Material & Methods: Amo...
A soil isolate of Actinoplanes that produces the chemically unrelated new amibiotics teichomycins A, and A2 has been proposed as a new species named Actinoplanes teichomyceticus nov. sp. (ATCC 31121). Studies of medium and fermentation conditions indicated that the highest antibiotic titers, ca 900 u/ml, are obtained in a medium containing 1 (w/v) glucose, 1 % cotton seed meal, 1 % malt extract...
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