Release of a Soluble Phytoalexin Elicitor from Mycelial Walls of Phytophthora megasperma var. sojae by Soybean Tissues.
Release of a Soluble Phytoalexin Elicitor from Mycelial Walls of Phytophthora megasperma var. sojae by Soybean Tissues.
复制标题
从 Phytophthora megasperma var. 菌丝壁中释放可溶性植物抗毒素激发子。
DOI：
10.1104/pp.67.5.1032
复制
发表时间：
1981
期刊：
影响因子：
7.4
通讯作者：
H. Masago
中科院分区：
文献类型：
--
作者：
Masaaki Yoshikawa;Masayoshi Matama;H. Masago
从 Phytophthora megasperma var. 的不溶性菌丝壁中释放出甘油蛋白积累的可溶性诱导子。与大豆子叶组织一起孵育短短 2 分钟后的大豆。对释放的激发子进行各种酶和化学处理表明活性存在于碳水化合物部分，并且凝胶过滤揭示了至少两种活性分子种类的存在。来自大豆子叶或下胚轴的无细胞提取物也从真菌细胞壁释放可溶性激发子，这与活子叶组织释放的类似。这些结果可能表明，需要真菌病原体与宿主组织接触来释放真菌壁诱导子，然后启动植物抗毒素在植物中的积累。
A soluble elicitor of glyceollin accumulation was released from insoluble mycelial walls of Phytophthora megasperma var. sojae after incubation with soybean cotyledon tissue for as little as 2 minutes. Various enzymic and chemical treatments of the released elicitor indicated that the activity resided in a carbohydrate moiety, and gel filtration disclosed the presence of at least two active molecular species. Cell-free extracts from soybean cotyledons or hypocotyls also released soluble elicitors from fungal cell walls that were similar to those released by living cotyledon tissue. These results may suggest that contact of fungal pathogens with host tissues is required to release fungal wall elicitors which then initiate phytoalexin accumulation in the plant.