Document Detail

Chlorogenic acid and maize ear rot resistance: a dynamic study investigating Fusarium graminearum development, deoxynivalenol production and phenolic acid accumulation.
MedLine Citation:
PMID:  23035912     Owner:  NLM     Status:  Publisher    
Fusarium graminearum is the causal agent of Gibberella ear rot and produces trichothecene mycotoxins. Basic questions remain unanswered regarding the kernel stage(s) associated with trichothecene biosynthesis and the kernel metabolites potentially involved in the regulation of trichothecene production in planta. In a two-year field study, F. graminearum growth, trichothecene accumulation, and phenolic acid composition were monitored in developing maize kernels of a susceptible and a moderately resistant variety using Q-PCR and liquid chromatography coupled with photodiode array or mass spectrometry detection. Infection starts as early as the blister stage and proceeds slowly until the dough stage. Then, a peak of trichothecene accumulation occurs and infection progresses exponentially until the final harvest time. Both F. graminearum growth and trichothecene production are drastically reduced in the moderately resistant variety. We found that chlorogenic acid is more abundant in the moderately resistant variety, with levels spiking in the earliest kernel stages induced by Fusarium infection. This is the first report that precisely describes the kernel stage associated with the initiation of trichothecene production and provides in planta evidence that chlorogenic acid may play a role in maize resistance to Gibberella ear rot and trichothecene accumulation.
Vessela Atanasova-Penichon; Sebastien Pons; Laetitia Pinson-Gadais; Adeline Picot; Gisele Marchegay; Marie-Noelle Bonnin-Verdal; Christine Ducos; Christian Barreau; Joel Roucolle; Pierre Sehabiague; Pierre Carolo; Florence Richard-Forget
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-4
Journal Detail:
Title:  Molecular plant-microbe interactions : MPMI     Volume:  -     ISSN:  0894-0282     ISO Abbreviation:  Mol. Plant Microbe Interact.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9107902     Medline TA:  Mol Plant Microbe Interact     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
INRA, UR 1264 MYCSA, 71 avenue Edouard Bourlaux, 33883 Villenave d'Ornon, France;
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