茉莉酸甲酯和虫害诱导棉花对棉蚜及其天敌选择行为的影响

生态学杂志 ›› 2012, Vol. 31 ›› Issue (10): 2555-2560.

茉莉酸甲酯和虫害诱导棉花对棉蚜及其天敌选择行为的影响

冯宏祖,姚永生,王兰^**

(塔里木大学植物科学学院，新疆阿拉尔 843300)

出版日期:2012-10-10 发布日期:2012-10-10

Effects of exogenous methyl jasmonate and insect injury-induced cotton plants on selection behaviors of Aphis gossypii and its natural enemies.

FENG Hong-zu, YAO Yong-sheng, WANG Lan^**

(College of Plant Science, Tarim University, Alar 843300, Xinjiang, China)

Online:2012-10-10 Published:2012-10-10

摘要/Abstract

摘要： 以棉蚜及其天敌十一星瓢虫、叶色草蛉为对象，通过Y型嗅觉仪测定了3种昆虫对不同味源物的行为反应。结果表明，健康棉株叶片对棉蚜的吸引作用与虫害棉叶和茉莉酸甲酯(MeJA)处理棉叶未存在显著性差异；十一星瓢虫和叶色草蛉对虫害棉叶的选择性是健康棉叶的2.7和2.2倍(P<0.001)，对MeJA处理棉叶的选择性明显高于健康叶片(P<0.001)，其中0.02 μmol·mL^-1处理的棉叶对天敌的吸引力最强，单一的MeJA对十一星瓢虫和叶色草蛉也具有吸引作用。

关键词: 粮食安全, 资源利用, 水稻种植, 增密减氮, 温室气体

Abstract: By using Y-tube olfactometer, this paper studied the behavioral responses of cotton aphid (Aphis gossypii) and its two natural enemies Coccinella undecimpanctata and Chrysopa phyllochroma to different odor sources. No significant difference was observed in the attraction of healthy cotton leaves and the leaves injured by insects or treated with methyl jasmonate (MeJA) to cotton aphids. The selection of C. undecimpanctata and C. phyllochroma to the injured leaves was 2.7 and 2.2fold of that to the healthy leaves, respectively, with significant differences (P<0.001) among them. The selection of C. undecimpanctata and C. phyllochroma to the leaves treated with MeJA was significantly higher than that to the healthy leaves (P<0.01). The leaves treated with 0.02 μmol·mL^-1 of MeJA showed the strongest attraction to natural enemies. Even the leaves treated with MeJA alone also had the attraction to C. undecimpanctata and C. phyllochroma. This study would provide a theoretical basis for the chemical ecological regulation of cotton aphid.

Key words: food security, resource use, rice planting, dense planting with less nitrogen application, greenhouse gas.

冯宏祖,姚永生,王兰**. 茉莉酸甲酯和虫害诱导棉花对棉蚜及其天敌选择行为的影响[J]. 生态学杂志, 2012, 31(10): 2555-2560.

FENG Hong-zu, YAO Yong-sheng, WANG Lan**. Effects of exogenous methyl jasmonate and insect injury-induced cotton plants on selection behaviors of Aphis gossypii and its natural enemies. [J]. cje, 2012, 31(10): 2555-2560.

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