کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2836224 | 1570846 | 2016 | 7 صفحه PDF | دانلود رایگان |
• Stilbenes are grapevine phytoalexins elicited by biotic and abiotic agents.
• Study of resveratrol oligomers in A. carbonarius Negro Amaro infected grape.
• Significant increases of viniferins, E-miyabenol C, resveratrol tetramers.
• Decrease of glycosides emphasizes the resistance trait of this variety.
• Improved knowledge on vine phytoalexin production against this pathogen.
Stilbenes are grapevine phytoalexins elicited by biotic and abiotic agents; Aspergillus carbonarius is a widespread ochratoxin A producing fungus present in warm conditions, such as in Southern Italy. To increase the knowledge on biosynthesis of stilbene oligomers induced by A. carbonarius infection, grape berries of the Southern Italian grape cv. Negro Amaro were inoculated. Significant increase of trans-resveratrol and resveratrol dimers and oligomers, such as caraphenol, E-ε-viniferin, ω-viniferin, δ-viniferin, α-viniferin, E-miyabenol C, and two tetramers, was observed, and concomitant decrease of glycoside derivatives. These findings improve the knowledge on the phytoalexin production as response against this pathogen.
Figure optionsDownload as PowerPoint slide
Journal: Physiological and Molecular Plant Pathology - Volume 93, January 2016, Pages 112–118