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branimycins b and c, antibiotics produced by the abyssal actinobacterium pseudonocardia carboxydivorans m-227.two new antibiotics, branimycins b (2) and c (3), were produced by fermentation of the abyssal actinobacterium pseudonocardia carboxydivorans m-227, isolated from deep seawater of the avilés submarine canyon. their structures were elucidated by hrms and nmr analyses. these compounds exhibit antibacterial activities against a panel of gram-positive bacteria, including corynebacterium urealyticum, clostridium perfringens, and micrococcus luteus, and against the gram-negative bacterium neisseria me ...201728169531
efficient bioconversion of compactin to pravastatin by the quinoline-degrading microorganism pseudonocardia carboxydivorans isolated from petroleum-contaminated soil.pravastatin is one of the first available statins on the market. the purpose of this study was to isolate and identify the quinoline-degrading microorganism from petroleum-contaminated soil that could bioconvert compactin to pravastatin. there were 10,011 microorganism colonies isolated; five strains showed a higher capability for quinoline biodegradation. these five strains were evaluated for their pravastatin bioconversion ability; pseudonocardia sp. had the highest efficiency for conversion o ...201121974888
pseudonocardia carboxydivorans sp. nov., a carbon monoxide-oxidizing actinomycete, and an emended description of the genus pseudonocardia.a bacterial strain, y8(t), capable of oxidizing carbon monoxide, was isolated from a soil sample collected from a roadside in seoul, korea. on the basis of 16s rrna gene sequence similarity analyses, strain y8(t) was shown to belong to the genus pseudonocardia and was related most closely to the type strain of pseudonocardia alni (99.6 % similarity). the cells were aerobic and stained gram-positive, with white aerial mycelium and brown substrate mycelium. the predominant fatty acids were 16 : 0 ...200818984679
pseudonocardia tropica sp. nov., an endophytic actinomycete isolated from the stem of maytenus austroyunnanensis.a novel strain, designated yim 61452(t), was isolated from the stem of maytenus austroyunnanensis collected from the tropical rainforest of xishuangbanna, yunnan province, south-west china. the strain was characterized taxonomically by using a polyphasic approach. phylogenetic analysis based on 16s rrna gene sequences showed that strain yim 61452(t) belonged to the genus pseudonocardia and was most closely related to pseudonocardia alni imsnu 20049(t) (99.5 %), pseudonocardia antarctica dvs 5a1( ...201019965996
identification and characterization of 1,4-dioxane-degrading microbe separated from surface seawater by the seawater-charcoal perfusion apparatus.to determine the concentration of soluble 1,4-dioxane during biodegradation, a new method using of high-performance liquid chromatography equipped with a hydrophilic interaction chromatography column was developed. the developed method enabled easy and rapid determination of 1,4-dioxane, even in saline medium. microbes capable of degrading 1,4-dioxane were selected from the seawater samples by the seawater-charcoal perfusion apparatus. among 32 candidate 1,4-dioxane degraders,, strain rm-31 exhi ...201627094948
pseudonocardia nematodicida sp. nov., isolated from mangrove sediment in hainan, china.two aerobic, gram-stain positive actinobacterial strains with nematicidal activity, designated ha11164(t) and ha12591, were isolated from mangrove sediments in hainan, china. phylogenetic analysis based on the 16s rrna gene sequences indicated that strains ha11164(t) and ha12591 belong to the genus pseudonocardia and are closely related to pseudonocardia carboxydivorans (with the similarities of 98.30 and 98.24 %, respectively), pseudonocardia alni (98.23 and 98.16 %, respectively) and pseudonoc ...201526115882
rare actinomycetes nocardia caishijiensis and pseudonocardia carboxydivorans as endophytes, their bioactivity and metabolites evaluation.two strains identified as nocardia caishijiensis (sors 64b) and pseudonocardia carboxydivorans (agls 2) were isolated as endophytes from sonchus oleraceus and ageratum conyzoides respectively. the analysis of their extracts revealed them to be strongly bioactive. the n. caishijiensis extract gave an lc50 of 570 μg/ml(-1) in the brine shrimp cytotoxicity assay and an ec50 of 0.552 μg/ml(-1) in the dpph antioxidant assay. antimicrobial activity was observed against methicillin resistant staphlococ ...201626946375
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