Antioxidant Enzyme Activity in Bacterial Resistance to Nicotine Toxicity by Reactive Oxygen Species
作者： Tiejuan Shao , Haiping Yuan , Bo Yan , Zhenmei Lü , Hang Min
DOI: 10.1007/S00244-009-9305-Z
关键词:
摘要: We analyzed superoxide dismutase (SOD), catalase (CAT), and ATPase activities in the highly nicotine-degrading strain Pseudomonas sp. HF-1 two standard strains Escherichia coli Bacillus subtilis an attempt to understand antioxidant enzymes bacteria are produced response nicotine, which increases virulence of bacteria. Nicotine had different effects on SOD plays a more important role resistance nicotine stress E. than it does CAT. Multiple involved combating oxidative caused by HF-1. The contribution particular enzyme for protection from varies with growth phase involved. inhibition at stationary was enhanced increasing concentration, showing striking dose-response relationship. probably affected metabolism ATP some extent. Furthermore, possessed distinct isoforms cope nicotine.
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