Document Detail

Light-activated, -inhibited and -independent denitrification by a denitrifying phototrophic bacterium.
MedLine Citation:
PMID:  304709     Owner:  NLM     Status:  MEDLINE    
Effects of illumination on denitrification by a freshly isolated denitrifying phototrophic bacterium were investigated. Denitrification activity was induced when cells were grown in either light or darkness in the presence of nitrate without oxygen. Denitrification of nitrate with malate as the electron donor by cells at a phase of exponential growth occurred independently of illumination while that by cells in a stationary phase was activated. Effects of illumination on denitrification varied with electron donors. Using malate or succinate, denitrification by cells in a stationary phase was accelerated by illumination, inhibited when glucose or lactate was used, and independent of illumination when pyruvate was used. Denitrification by cells in an exponential phase was independent of illumination when succinate, malate or pyruvate was used and inhibited by it when glucose or lactate was used. Effects of illumination on the denitrification of nitrite were similar to those involving nitrate. Effects of various inhibitors on denitrification were examined in light-succinate and dark-lactate systems. Differences between the two systems are discussed.
T Satoh
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of microbiology     Volume:  115     ISSN:  0302-8933     ISO Abbreviation:  Arch. Microbiol.     Publication Date:  1977 Dec 
Date Detail:
Created Date:  1978-03-10     Completed Date:  1978-03-10     Revised Date:  2000-12-18    
Medline Journal Info:
Nlm Unique ID:  0410427     Medline TA:  Arch Microbiol     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  293-8     Citation Subset:  IM    
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MeSH Terms
Glucose / metabolism
Lactates / metabolism
Malates / metabolism
Nitrates / metabolism*
Nitrites / metabolism
Pyruvates / metabolism
Rhodobacter sphaeroides / metabolism*
Succinates / metabolism
Reg. No./Substance:
0/Lactates; 0/Malates; 0/Nitrates; 0/Nitrites; 0/Pyruvates; 0/Succinates; 50-99-7/Glucose

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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