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一株施氏假单胞菌将硒酸盐和亚硒酸盐还原为单质硒。

Reduction of Selenate and Selenite to Elemental Selenium by a Pseudomonas stutzeri Isolate.

机构信息

Environment Laboratory, CANMET, Department of Energy, Mines and Resources, Ottawa, Ontario K1A 0G1, C.A.R.E. International, Calgary, Alberta, and Lethbridge Research Station, Agriculture Canada, Lethbridge, Alberta, Canada.

出版信息

Appl Environ Microbiol. 1992 Dec;58(12):4042-4. doi: 10.1128/aem.58.12.4042-4044.1992.

Abstract

A Pseudomonas stutzeri isolate rapidly reduced both selenite and selenate ions to elemental selenium at initial concentrations of both anions of up to 48.1 mM. Optimal selenium reduction occurred under aerobic conditions between pH 7.0 and 9.0 and at temperatures of 25 to 35 degrees C. Reduction of both selenite and selenate was unaffected by a number of anions except for sulfite, chromate, and tungstate ions, which inhibited both growth and reduction.

摘要

一株恶臭假单胞菌(Pseudomonas stutzeri)在亚硒酸盐和硒酸盐初始浓度高达 48.1mM 的条件下,能迅速将两种阴离子还原为单质硒。在有氧条件下,pH 值为 7.0 至 9.0 之间,温度为 25 至 35 摄氏度时,硒的还原作用最佳。除亚硫酸盐、铬酸盐和钨酸盐离子外,许多阴离子对亚硒酸盐和硒酸盐的还原没有影响,但这些离子会抑制生长和还原。

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