English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/65752
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Role of hydroxycinnamic acids in the infection of maize silks by fusarium graminearum schwabe

AuthorsCao Caamaño, Ana ; Reid, Lana M.; Butrón Gómez, Ana María ; Malvar Pintos, Rosa Ana ; Souto, X. C.; Santiago Carabelos, Rogelio
KeywordsZea mays
Fusarium graminearum
Silks
Hydroxycinnamic acid
Issue Date2011
PublisherAmerican Phytopathological Society
CitationMolecular Plant-Microbe Interactions 24: 1020-1026 (2011)
AbstractIn the current study, the hydroxycinnamic acids in silks of diverse maize inbred lines differing in Fusarium resistance were determined at several times after inoculation with Fusarium graminearum or sterile water as control. The main objective was to determine the possible relationship between the hydroxycinnamic acid changes in silks and ear rot resistance. Several changes in the cell-wall-bound hydroxycinnamic acid concentrations were observed after inoculation with F. graminearum, although these changes were not directly correlated with genotypic resistance to this fungus. Ester-bound ferulic acid decreased, probably due to degradation of hemicellulose by hydrolytic enzymes produced by Fusarium spp., while p-coumaric acid and diferulates showed slight increases that, in conjunction, did not result in delayed F. graminearum progression through the silks. It is important to note that the decrease of ferulic acid in the F. graminearum treatment was faster in susceptible than in resistant genotypes, suggesting a differential hemicellulose degradation in silk tissues. Therefore, the ability of the maize genotypes to slow down that process through hemicellulose structural features or xylanase inhibitors needs to be addressed in future studies. © 2011 The American Phytopathological Society.
URIhttp://hdl.handle.net/10261/65752
DOIhttp://dx.doi.org/10.1094/MPMI-03-11-0079
Identifiersissn: 0894-0282
Appears in Collections:(MBG) Artículos
Files in This Item:
File Description SizeFormat 
Cao_Changes_phenolic...pdf136,03 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.