论文部分内容阅读
褐腐病是核果和仁果类果树上的一种重要病害。本研究从采集自新疆野果林中的褐腐病样上共分离到75株褐腐菌。利用内转录间隔区(ITS)、β‐微管蛋白基因和延伸因子(EF1α)基因序列和形态学方法,对这些菌株进行了种类鉴定。结果显示:67株为Monilinia fructigena,8株为M.laxa。M.fructigena和M.laxa都分布在新疆北部的天然野果林中。M.fructigena主要来自野苹果、樱桃李、野杏和欧洲李。M.laxa主要来自樱桃李、野苹果和红樱桃。这是首次在新疆地区的野生果林中发现M.fructigena和M.laxa。研究结果不仅对了解当地栽培果园的侵染源有帮助,而且为研究褐腐菌的起源与演化提供了试验材料。
Brown rot is an important disease on drupe and pome fruit trees. In this study, 75 brown rot fungi were isolated from brown rot samples collected from wild berries in Xinjiang. The strains were identified by ITS sequence, β-tubulin gene and elongation factor (EF1α) gene sequence and morphological methods. The results showed that 67 strains were Monilinia fructigena and 8 strains were M.laxa. M.fructigena and M.laxa are distributed in the natural wild forest in northern Xinjiang. M.fructigena comes mainly from wild apples, cherry plums, wild apricots and European plums. M.laxa comes mainly from cherry plums, wild apples and red cherries. This is the first time M.fructigena and M.laxa have been found in wild fruit groves in Xinjiang. The results not only help to understand the source of the cultivated orchards in the area, but also provide experimental materials for studying the origin and evolution of brown rot fungi.