A HISTOLOGICAL-EVALUATION OF INDUCED RESISTANCE TO PHYTOPHTHORA-INFESTANS (MONT) DEBARY IN POTATO LEAVES

被引：19

作者：

STROMBERG, A

BRISHAMMAR, S

机构：

[1] Department of Plant and Forest Protection, Swedish University of Agricultural Sciences

来源：

JOURNAL OF PHYTOPATHOLOGY | 1993年 / 137卷 / 01期

关键词：

D O I：

10.1111/j.1439-0434.1993.tb01321.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Systemically induced resistance against Phytophthora infestans in the potato cultivar 'Bintje' was studied histologically at the light microscopy level on the leaf surface, in the epidermis and in the mesophyll of challenged potato leaves. Systemic disease resistance was induced by a local pre-infection with the same fungus. On the leaf surface of induced plants, the germination of cysts was enhanced. In the epidermis of induced plants, papilla deposition increased and penetration decreased, whereas in the mesophyll of induced plants the spread of hyphae was reduced. It is suggested that the reduction of disease severity in induced plants is the result of the combined action of several successive defence reactions.

引用

页码：15 / 25

页数：11

共 22 条

[1] INHIBITION BY 2-DEOXY-D-GLUCOSE OF CALLOSE FORMATION, PAPILLA DEPOSITION, AND RESISTANCE TO POWDERY MILDEW IN AN ML-O BARLEY MUTANT [J].