The Influence of UV Irradiation on Stilbene Contents and Gray Mold Incidence in Grapevine Leaves

자외선 조사가 포도잎의 Stilbene 함량 및 잿빛곰팡이병 발생에 미치는 영향

  • Received : 2012.05.09
  • Accepted : 2012.07.11
  • Published : 2012.10.31


In order to confirm the possibility of UV utilization as a means for disease protection in grapevine the stilbene contents and the disease incidence in UV irradiated leaves were investigated. UV irradiation significantly increased the contents of resveratrol, piceatannol and piceid, in them, resveratrol and piceid showed in vitro inhibition of spore germination and mycelium growth of Botrytis cinerea. The accumulation of both the stilbenes in UV irradiated leaves seems to be enough to inhibit the B. cinerea growth, since the formation of necrotic spot on the leaves was considerably inhibited when they were inoculated with the conidial spores of B. cinerea. However the stilbenes were accumulated only in the leaves exposed directly to UV showing a limited translocation ability of the compounds. Thus it would be necessary to develop a method to evenly irradiate the entire crown of plant with UV in order to expect to protect them from disease by UV irradiation.


Botrytis cinerea;disease protection;piceid;resveratrol


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