Feeding-induced changes in defence enzymes and PR proteins and their implications in host resistance to Nilaparvata lugens

被引：19

作者：

Alagar, M. ^{[1
]}

Suresh, S. ^{[1
]}

Saravanakumar, D. ^{[2
]}

Samiyappan, R. ^{[2
]}

机构：

[1] Tamil Nadu Agr Univ, Dept Agr Entomol, Ctr Plant Protect Studies, Coimbatore 641003, Tamil Nadu, India

[2] Tamil Nadu Agr Univ, Dept Plant Pathol, Ctr Plant Protect Studies, Coimbatore 641003, Tamil Nadu, India

来源：

JOURNAL OF APPLIED ENTOMOLOGY | 2010年 / 134卷 / 02期

关键词：

Nilaparvata lugens; defence enzymes; genotypes; PR proteins; resistant; susceptible; POLYACRYLAMIDE-GEL ELECTROPHORESIS; RICE PLANTS; PEROXIDASE-ACTIVITY; PHENOLIC-COMPOUNDS; INSECT HERBIVORES; HELIOTHIS-ZEA; CHITINASE; TOMATO; RESPONSES; PATHOGENESIS;

D O I：

10.1111/j.1439-0418.2009.01461.x

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Six rice genotypes showing susceptible and resistant reactions to brown planthopper (BPH), Nilaparvata lugens were studied for feeding-induced changes in defence enzymes and pathogenesis-related (PR) proteins. The high resistant genotypes PTB 33, ADT 45 and ASD 7 and moderately resistant genotypes CO 43 and KAU 1661 recorded the greater expression of defence enzymes peroxidase, polyphenol oxidase, phenylalanine ammonia lyase, total phenol and beta-1,3 glucanase in response to N. lugens feeding at 1 day after infestation (DAI) compared with susceptible genotype TN1. The greater activity of chitinase was observed in resistant cultivars at 3 DAI and the activity was sustained for more than 1 week compared with susceptible TN1. In conclusion, the current study revealed that these defence enzymes and PR proteins might attribute to the resistance mechanisms in rice plants against BPH infestation.

引用

页码：123 / 131

页数：9

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