Document Detail


Cyanide-resistant respiration in Neurospora crassa.
MedLine Citation:
PMID:  4333318     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cell respiration in wild type and poky was studied as part of a long-term investigation of cyanide-resistant respiration in Neurospora. Respiration in wild type proceeds via a cytochrome chain which is similar to that of higher organisms; it is sensitive to antimycin A or cyanide. Poky, on the other hand, respires by means of two alternative oxidase systems. One of these is analogous to the wild-type cytochrome chain in that it can be inhibited by antimycin A or cyanide; this system accounts for as much as 15% of the respiration of poky f(-) and 34% of the respiration of poky f(+). The second oxidase system is unaffected by antimycin A or cyanide at concentrations which inhibit the cytochrome chain maximally. It can, however, be specifically inhibited by salicyl hydroxamic acid. The cyanide-resistant oxidase is not exclusive to poky, but is also present in small quantities in wild type grown under ordinary circumstances. These quantities may be greatly increased (as much as 20-fold) by growing wild type in the presence of antimycin A, cyanide, or chloramphenicol.
Authors:
A M Lambowitz; C W Slayman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of bacteriology     Volume:  108     ISSN:  0021-9193     ISO Abbreviation:  J. Bacteriol.     Publication Date:  1971 Dec 
Date Detail:
Created Date:  1972-04-07     Completed Date:  1972-04-07     Revised Date:  2010-09-13    
Medline Journal Info:
Nlm Unique ID:  2985120R     Medline TA:  J Bacteriol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1087-96     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Aerobiosis
Antimycin A / pharmacology
Chloramphenicol / pharmacology
Culture Media
Cyanides / pharmacology*
Cytochromes / metabolism*
Electrodes
Electron Transport
Electron Transport Complex IV / metabolism
Genetics, Microbial
Hydroxamic Acids / pharmacology
Models, Chemical
Mutation*
Neurospora / metabolism*
Neurospora crassa / enzymology,  growth & development,  metabolism
Oxygen Consumption / drug effects*
Polarography
Chemical
Reg. No./Substance:
0/Culture Media; 0/Cyanides; 0/Cytochromes; 0/Hydroxamic Acids; 56-75-7/Chloramphenicol; 642-15-9/Antimycin A; EC 1.9.3.1/Electron Transport Complex IV
Comments/Corrections

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


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