Effects of damage by Grapholitha molesta and Cydia pomonella on host plant defensive enzyme activity
Author of the article:MU Xiao-Qing；LIN Pin；LI Zhen；LI Yi-Song
Author's Workplace： College of Agriculture, Key Laboratory of Oasis Agricultural Pest Management and Plant Protection Resources Utilization, Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi 832003, China; College of Agriculture, Xinjiang Agricultrual University, Key Laboratory of the Pest Montoring and Safety Control of Crops and Forests, Urumqi 830052, China; China Agricultural University, College of Plant Protection, Beijing 100083, China
Key Words：Grapholitha molesta; Cydia pomonella; damage; defensive enzyme
Abstract：
[Objectives] To investigate the
defensive strategies evolved by host plants to cope with insect damage during the
plant growth process. [Methods] Changes
in the defensive enzymes of host plants after damage by the fruit-borers Grapholitha
Molesta and Cydia pomonella were measured. [Results] Protein
content and catalase（CAT）, peroxidase（POD）and superoxide dismutase（SOD）activities in damaged fruit were higher than in undamaged fruit. There
was no significant difference in the protein content, or CAT, POD and SOD
activities, of fruit damaged by G.
molesta and that damaged by C.
pomonella. However，protein content，and CAT， POD and SOD activities, were significantly higher when fruit was damaged by both these fruit borer
species than when it was damaged by just one species. [Conclusion] Damage to apples by G. molesta and C. pomonella can induce defensive
enzyme activity involved in the stress response.