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肾棒状杆菌反硝化过程中一氧化氮和一氧化二氮的产生。

Production of nitric oxide and nitrous oxide during denitrification by Corynebacterium nephridii.

作者信息

Renner E D, Becker G E

出版信息

J Bacteriol. 1970 Mar;101(3):821-6. doi: 10.1128/jb.101.3.821-826.1970.

Abstract

Resting cells of Corynebacterium nephridii reduce nitrate, nitrite, and nitric oxide to nitrous oxide under anaerobic conditions. Nitrous oxide production from nitrite was optimal from pH 7.0 to 7.4. The stoichiometry of nitrous oxide production from nitrite was 99% of the theoretical-two moles of nitrite was used for each mole of nitrous oxide detected. Hydroxylamine increases gas evolution from nitrite but inhibits the reduction of nitric oxide to nitrous oxide. Hydroxylamine is converted to nitrogenous gas(es) by resting cells only in the presence of nitrite. Under certain conditions nitric oxide, as well as nitrous oxide, was detected.

摘要

肾棒状杆菌的静止细胞在厌氧条件下可将硝酸盐、亚硝酸盐和一氧化氮还原为一氧化二氮。亚硝酸盐产生一氧化二氮的最佳pH值为7.0至7.4。亚硝酸盐产生一氧化二氮的化学计量比为理论值的99%——每检测到一摩尔一氧化二氮,就消耗两摩尔亚硝酸盐。羟胺可增加亚硝酸盐产生的气体量,但会抑制一氧化氮还原为一氧化二氮。只有在存在亚硝酸盐的情况下,静止细胞才能将羟胺转化为含氮气体。在某些条件下,可检测到一氧化氮以及一氧化二氮。

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