Meyer Melody M, Kirkpatrick Bruce C
Department of Plant Pathology, University of California, Davis.
Plant Dis. 2011 Feb;95(2):173-177. doi: 10.1094/PDIS-06-10-0446.
Foliar and drench applications of the plant growth regulator abscisic acid (ABA) were applied to 1-year-old potted Vitis vinifera 'Pinot Noir' and 'Cabernet Sauvignon' vines infected with Xylella fastidiosa, the bacterial pathogen that causes Pierce's disease (PD). A naturally occurring ABA and a synthetic ABA were applied, and both materials showed some effectiveness at increasing curing rates of PD-affected grapevines. Pinot Noir grapevines treated with the drench ABA treatments had significantly greater disease curing effects than the unsprayed control plants. It has been shown that plant phenolics have antimicrobial properties, and we found a positive correlation between effective ABA treatments and the total phenolic compound content of xylem sap extracted from Pinot Noir vines.
将植物生长调节剂脱落酸（ABA）进行叶面喷施和灌根处理，施用于感染了木质部难养菌的1年生盆栽酿酒葡萄品种“黑皮诺”和“赤霞珠”葡萄藤上，木质部难养菌是引起皮尔氏病（PD）的细菌病原体。施用了一种天然存在的ABA和一种合成ABA，两种物质在提高受PD影响葡萄藤的治愈率方面均显示出一定效果。用灌根ABA处理的黑皮诺葡萄藤比未喷施的对照植株具有显著更强的病害治愈效果。研究表明植物酚类物质具有抗菌特性，并且我们发现有效的ABA处理与从黑皮诺葡萄藤中提取的木质部汁液中总酚类化合物含量之间存在正相关。
