TY - JOUR
T1 - Biological activity of resveratrol, a stilbenic compound from grapevines, against Botrytis cinerea, the causal agent for gray mold
AU - Adrian, Marielle
AU - Jeandet, Philippe
AU - Veneau, Jérôme
AU - Weston, Leslie A.
AU - Bessis, Roger
PY - 1997/1/1
Y1 - 1997/1/1
N2 - The biological activity of resveratrol, a stilbenic compound synthesized by grapevines in response to various stresses, was reevaluated against Botrytis cinerea using a novel in vitro system that enabled direct observation of the fungus with an inverted microscope. We determined that 90 μg resveratrol/ml reduced germination of B. cinerea conidia by ca. 50%. Moreover, resveratrol was shown to significantly reduce mycelial growth of B. cinerea at concentrations ranging from 60 to 140 μg/ml. Exposure to resveratrol at concentrations ranging from 60 to 140 μg/ml resulted in cytological changes in B. cinerea, such as production of secondary or tertiary germ tubes by conidia, cytoplasmic granulations, protoplasmic retractation in the hyphal tip cells, and formation of curved germ tubes. These data reinforce the role played by this compound in the B. cinerea-grapevine interaction.
AB - The biological activity of resveratrol, a stilbenic compound synthesized by grapevines in response to various stresses, was reevaluated against Botrytis cinerea using a novel in vitro system that enabled direct observation of the fungus with an inverted microscope. We determined that 90 μg resveratrol/ml reduced germination of B. cinerea conidia by ca. 50%. Moreover, resveratrol was shown to significantly reduce mycelial growth of B. cinerea at concentrations ranging from 60 to 140 μg/ml. Exposure to resveratrol at concentrations ranging from 60 to 140 μg/ml resulted in cytological changes in B. cinerea, such as production of secondary or tertiary germ tubes by conidia, cytoplasmic granulations, protoplasmic retractation in the hyphal tip cells, and formation of curved germ tubes. These data reinforce the role played by this compound in the B. cinerea-grapevine interaction.
KW - Botrytis cinerea
KW - Grapevines
KW - Phytoalexins
KW - Pterostilbene
KW - Resveratrol
KW - Vitis spp
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U2 - 10.1023/B:JOEC.0000006444.79951.75
DO - 10.1023/B:JOEC.0000006444.79951.75
M3 - Article
AN - SCOPUS:0030812368
VL - 23
SP - 1689
EP - 1702
JO - Journal of Chemical Ecology
JF - Journal of Chemical Ecology
SN - 0098-0331
IS - 7
ER -