Document Detail


Role of rhizobitoxine in protecting soybean roots from Macrophomina phaseolina infection.
MedLine Citation:
PMID:  6539157     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Bacterization of soybean seeds or roots with Rhizobium japonicum significantly reduced charcoal rot disease caused by Macrophomina phaseolina . Rhizobium japonicum inhibited the growth of M. phaseolina on both liquid and solid media. Replacement of nutrient medium with culture filtrate of R. japonicum significantly reduced mycelial growth of M. phaseolina . Whole culture extracts of R. japonicum yielded a toxic substance which was identified as rhizobitoxine after chromatographic, ultraviolet, and infrared spectrophotometric analyses. This compound also was detected in the roots of soybean inoculated with either R. japonicum alone or in combination of R. japonicum and M. phaseolina . Dosage response curves with rhizobitoxine showed it to be antifungal. The possible role of rhizobitoxine in protecting soybean roots from M. phaseolina infection is discussed.
Authors:
U Chakraborty; R P Purkayastha
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Canadian journal of microbiology     Volume:  30     ISSN:  0008-4166     ISO Abbreviation:  Can. J. Microbiol.     Publication Date:  1984 Mar 
Date Detail:
Created Date:  1984-07-09     Completed Date:  1984-07-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372707     Medline TA:  Can J Microbiol     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  285-9     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Antibiosis
Mitosporic Fungi / drug effects*,  growth & development
Plant Diseases
Plant Extracts / biosynthesis,  isolation & purification,  pharmacology*
Propanolamines / biosynthesis,  isolation & purification,  pharmacology*
Rhizobium / growth & development,  metabolism*
Soil Microbiology*
Soybeans / microbiology*
Chemical
Reg. No./Substance:
0/Plant Extracts; 0/Propanolamines; 37658-95-0/rhizobitoxine

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


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