TY - JOUR
T1 - Stilbene oligomer phytoalexins in grape as a response to Aspergillus carbonarius infection
AU - Flamini, Riccardo
AU - Zanzotto, Alessandro
AU - De Rosso, Mirko
AU - Lucchetta, Gianluca
AU - Vedova, Antonio Dalla
AU - Bavaresco, Luigi
PY - 2016
Y1 - 2016
N2 - 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 transresveratrol and resveratrol dimers and oligomers, such as caraphenol, E-ε-viniferin, u-viniferin, d-viniferin, a-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.
AB - 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 transresveratrol and resveratrol dimers and oligomers, such as caraphenol, E-ε-viniferin, u-viniferin, d-viniferin, a-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.
KW - A. carbonarius
KW - In-vitro infection
KW - Negro Amaro V. vinifera grape
KW - Stilbene phytoalexins
KW - Time of flight mass spectrometry
KW - A. carbonarius
KW - In-vitro infection
KW - Negro Amaro V. vinifera grape
KW - Stilbene phytoalexins
KW - Time of flight mass spectrometry
UR - http://hdl.handle.net/10807/91503
UR - http://www.sciencedirect.com/science/article/pii/s088557651630011x
U2 - 10.1016/j.pmpp.2016.01.011
DO - 10.1016/j.pmpp.2016.01.011
M3 - Article
SN - 0885-5765
VL - 93
SP - 112
EP - 118
JO - Physiological and Molecular Plant Pathology
JF - Physiological and Molecular Plant Pathology
ER -