Document Detail


Physiology of sporeforming bacteria associated with insects: metabolism of Bacillus popilliae grown in third-instar Popillia japonica Newman larvae.
MedLine Citation:
PMID:  1147615     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The timing and relative participation of concurrent pathways of carbohydrate metabolism as well as the extent of terminal respiratory activity were determined by radiorespirometry with 14-C substrates and by enzyme assays for vegetative and sporulating cells of the bacterium Bacillus popilliae cultured in whole, intact Popillia japonica (Japanese beetle) larvae. During vegetative proliferation, the pentose phosphate pathway predominates in the bacterial cells with minor involvement of the Embden-Meyerhof-Parnas pathway. As the cells proceed through sporulation, pentose phosphate and Embden-Meyerhof-Parnas activity remains constant. No tricarboxylic cycle activity is evident during growth and sporulation of B. popilliae. The results demonstrate (i) predominantly aerobic metabolism for carbohydrate assimilation within in vivo sporulating cells, (ii) a major contrast to the metabolism of other aerobic sporeforming bacteria that exhibit derepression of tricarboxylic acid cycle enzymatic activity at the onset of sporulation, and (iii) no causal necessity of the cycle to B. popilliae sporogeny.
Authors:
G St Julian; L A Bulla; R S Hanson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied microbiology     Volume:  30     ISSN:  0003-6919     ISO Abbreviation:  Appl Microbiol     Publication Date:  1975 Jul 
Date Detail:
Created Date:  1975-10-08     Completed Date:  1975-10-08     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7605802     Medline TA:  Appl Microbiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  20-5     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Acetates / metabolism
Aerobiosis
Animals
Bacillus / enzymology,  growth & development,  metabolism*
Beetles / microbiology*
Carbon Dioxide / biosynthesis
Citric Acid Cycle
Glucose / metabolism
Glutamates / metabolism
Hemolymph / metabolism
Insect Control
Ketoglutaric Acids / metabolism
Larva / microbiology
Pest Control, Biological
Pyruvates / metabolism
Spores, Bacterial / growth & development
Succinates / metabolism
Chemical
Reg. No./Substance:
0/Acetates; 0/Glutamates; 0/Ketoglutaric Acids; 0/Pyruvates; 0/Succinates; 124-38-9/Carbon Dioxide; 50-99-7/Glucose
Comments/Corrections

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