水稻条纹花叶病毒对介体电光叶蝉生长繁殖及取食行为的影响

被引:6
作者
李盼 [1 ]
张洁 [2 ]
岳玥 [1 ]
陈红燕 [1 ]
吴维 [1 ]
魏太云 [1 ]
贾东升 [1 ]
机构
[1] 福建农林大学植物保护学院福建省植物病毒学重点实验室
[2] 云南省农业科学院生物技术与种质资源研究所
基金
国家重点研发计划;
关键词
电光叶蝉; 水稻条纹花叶病毒; 刺吸电位; 繁殖; 取食行为; 寄主选择行为;
D O I
10.16380/j.kcxb.2020.02.007
中图分类号
S435.111 [病害]; S433.3 [半翅目害虫];
学科分类号
090401 ; 090402 ;
摘要
【目的】由电光叶蝉Recilia dorsalis传播的水稻条纹花叶病毒(rice stripe mosaic virus, RSMV)目前在我国华南稻区大面积发生并对水稻生产造成严重危害。本研究旨在明确RSMV对介体电光叶蝉生长繁殖及取食行为的影响。【方法】通过生物学实验测定RSMV侵染后电光叶蝉的生长和生命表参数;利用刺吸电位(electrical penetration graph, EPG)技术比较携带和未携带RSMV的电光叶蝉成虫在健康水稻上的取食行为差异;采用Y型嗅觉仪测定电光叶蝉成虫对感染和未感染RSMV水稻的寄主选择倾向性。【结果】与无毒电光叶蝉相比,携带RSMV的电光叶蝉若虫发育历期延长,而若虫存活率、成虫羽化率、雌虫繁殖力和卵孵化率下降。无毒电光叶蝉成虫倾向于选择取食RSMV侵染的水稻,而带毒电光叶蝉成虫倾向于选择取食健康水稻。与无毒电光叶蝉相比,带毒电光叶蝉成虫取食健康水稻所产生的刺探波、障碍波和唾液分泌波次数和持续时间均显著增加,被动取食波和休息波次数减少但时间均延长。【结论】与无毒电光叶蝉相比,感染RSMV使带毒电光叶蝉若虫发育历期延长且不利于其种群的繁殖。RSMV通过调控介体电光叶蝉成虫的取食和寄主选择行为而有利于自身在寄主水稻间的传播。
引用
收藏
页码:174 / 180
页数:7
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