Hometop nav spacerAbout ARStop nav spacerHelptop nav spacerContact Ustop nav spacerEn Espanoltop nav spacer
Printable VersionPrintable Version     E-mail this pageE-mail this page
United States Department of Agriculture Agricultural Research Service
Search
 
 
 
National Programs
International Programs
Find Research Projects
The Research Enterprise
Office of Scientific Quality Review
Research Initiatives
 
You are here: Research /

Title: EFFECT OF CUCURBITACINS ON MRNA CODING FOR LACCASE IN BOTRYTIS CINEREA

Authors
item Gonen, Lyat - UNIVERSITY OF JERUSALEM
item Viterbo, Ada - UNIVERSITY OF JERUSALEM
item Cantone, Frank
item Staples, Richard - BOYCE THOMPSON INSTITUTE
item Mayer, Alfred - UNIVERSITY OF JERUSALEM

Submitted to: Phytochemistry
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: November 20, 1995
Publication Date: N/A

Interpretive Summary: Chemicals produced by plants in the cucumber family help protect these plants against laccase, but not against other enzymes, produced by the grey mold fungus. The purpose of this study was to determine how plants protect themselves against their fungus. Chemicals extracted from plants reduce the activity of laccase and limit its production by the fungus. This basic cfinding will lead to a more thorough understanding of the interactions between plants and their fungal pathogens.

Technical Abstract: Some members of the Cucurbitaceae contain potential phytoalexin compounds, known as cucurbitacins, which inhibit the formation of extracellular laccase by Botrytis cinerea and also prevent infection. Cucurbitacins D,E, and I and an extract from Ecballium were tested for their ability to inhibit expression of laccase mRNA. The amount of laccase mRNA was reduced drelative to an internal standard, b- tubulin mRNA, when B. cinerea was grown in the presence of these compounds. Thus, it appears that the inhibitory effect of cucurbitacins on the activity of laccase and on infection by B. cinerea can be attributed to their effects on the level of mRNA.

   
 
 
Last Modified: 06/19/2013
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House