CAJ | 학술논문

以3个抗病性不同的酿酒葡萄品种('西拉'>'霞多丽'>'赤霞珠')叶片为材料,检测霜霉病菌侵染后几种病原相关信号物质,如脱落酸(ABA)、过氧化氢(H_2O_2)、一氧化氮(NO)、茉莉酸(JA)和乙烯(ETH)等的变化,以探讨葡萄抵御霜霉病菌的信号转导机制.结果表明,H_2O_2和NO是葡萄感应霜霉病菌的早期信号分子,且抗性较强的品种'西拉'的变化最为明显;JA和ABA是抗性较羞品种'赤霞珠'应答霜霉病的信号组分.而3个抗性不同葡萄品种的乙烯变化无明显差别.推测H_2O_2,NO、JA和ABA均参与了葡萄对霜霉病菌的防御反应,但不同品种间信号转导组分可能存在差异.
이3개항병성불동적양주포도품충('서랍'>'하다려'>'적하주')협편위재료,검측상매병균침염후궤충병원상관신호물질,여탈락산(ABA)、과양화경(H_2O_2)、일양화담(NO)、말리산(JA)화을희(ETH)등적변화,이탐토포도저어상매병균적신호전도궤제.결과표명,H_2O_2화NO시포도감응상매병균적조기신호분자,차항성교강적품충'서랍'적변화최위명현;JA화ABA시항성교수품충'적하주'응답상매병적신호조분.이3개항성불동포도품충적을희변화무명현차별.추측H_2O_2,NO、JA화ABA균삼여료포도대상매병균적방어반응,단불동품충간신호전도조분가능존재차이.
Several disease-resistant signal substances, such as abscisic acid (ABA), hydrogen peroxide (H_2O_2), nitric oxide (NO), jasmonie acid (JA) and ethylene (ETH), in the leaves of 3 grape cultivars, 'Syrah', 'Char-donnay' and 'Cabernet Sauvignon', with different resistance to Plasmopara viticola, were studied in order to detect the signal transduction mechanisms. The results showed that H_2O_2 and NO were involved in the disease response, and 'Syrah' showed strong resistance! JA and ABA were involved in the disease response of the suscep-tible variety 'Cabernet Sauvignon'. Moreover, the level of ETH had no signifieant difference among the 3 culti-vars used. It was presumed that H_2O_2, NO, JA and ABA were involved in resistance against the downy mildew disease, but there were significantly different reactions among the three cultivars employed.