AEROBIC METABOLISM OF CARBON RESERVES BY THE OBLIGATE ANAEROBE DESULFOVIBRIO-GIGAS

被引:79
作者
SANTOS, H
FARELEIRA, P
XAVIER, AV
CHEN, L
LIU, MY
LEGALL, J
机构
[1] UNIV NOVA LISBOA,INST TECNOL QUIM & BIOL,APARTADO 127,P-2780 OEIRAS,PORTUGAL
[2] ESTACAO AGRON NACL,P-2780 OEIRAS,PORTUGAL
[3] UNIV GEORGIA,DEPT BIOCHEM,ATHENS,GA 30602
关键词
D O I
10.1006/bbrc.1993.2081
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The sulfate-reducing bacterium, Desulfovibrio gigas, is shown by in vivo31P-NMR to be capable of generating NTP from the utilization of internal carbon reserves both in anaerobic and in aerobic conditions. Acetate, glycerol and ethanol are the major end-products, but the production of alcohols decreases strongly when oxygen is present. When the glycolylic pathway is inhibited with fluoride, NTP levels decrease drastically but can be remarkably restored when an electron acceptor, such as oxygen, is provided. Our data are in favour of a NADH-linked electron transfer chain enabling transfer of reducing power derived from polyglucose to oxygen which provides this so-called “strict anaerobe” with the capability of surviving to oxic environments. © 1993 Academic Press, Inc.
引用
收藏
页码:551 / 557
页数:7
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