A Toxic Protein Causative of Silver-leaf Disease Symptoms on Apple Trees
A Toxic Protein Causative of Silver-leaf Disease Symptoms on Apple Trees
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一种导致苹果树银叶病症状的有毒蛋白质
DOI：
10.1271/bbb1961.41.1897
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
K. Sawai
中科院分区：
文献类型：
--
作者：
K. Miyairi;K. Fujita;T. Okuno;K. Sawai
当以每棵树约 25 μg 的剂量注射到苹果树中时，从 Stereum purpureum 培养滤液中获得的电泳均质蛋白质会引起银叶症状。该制剂的分子量为 32, 000，不仅具有内切 PG（多聚半乳糖醛酸酶）活性，而且在多种植物组织中具有浸渍作用。对苹果树的毒性作用定性地使内切PG活性发生平行改变。从测试的化学性质来看，该制剂与据报道的植物溶血素不同，植物溶血素是一种诱发李子银叶症状的有毒物质。
The electrophoretically homogeneous protein obtained from the culture filtrate of Stereum purpureum causes silver-leaf symptoms when injected into apple trees at a dosage of about 25 μg per tree. This preparation has a molecular weight of 32, 000, and shows not only an endo-PG (polygalacturonase) activity, but also macerating action in several plant tissues. Toxic effects on apple trees qualitatively make parallel alteration in the endo-PG activity. From the chemical properties tested, it is suggested that the preparation differs from phytolysin reported as a toxic material inductive to silver-leaf symptoms on plum trees.