How Cabbage Aphids Brevicoryne brassicae (L.) Make a Choice to Feed on Brassica napus Cultivars
文献类型： 外文期刊
作者： Hao, Zhong-Ping 1 ; Zhan, Hai-Xia 1 ; Wang, Yu-Long 1 ; Hou, Shu-Min 1 ;
作者机构： 1.Anhui Acad Agr Sci, Crop Res Inst, Hefei Rapeseed Subctr, Natl Oil Crops Improvement Ctr, Hefei 230031, Anhui, Peoples R China
关键词： cabbage aphids; electrical penetration graph; feeding preference; oilseed rape; probing behavior; resistance to aphids
期刊名称：INSECTS （ 影响因子：2.769； 五年影响因子：3.046 ）
ISSN： 2075-4450
年卷期： 2019 年 10 卷 3 期
页码：
收录情况： SCI
摘要： Plant resistance to aphids might be present in different plant tissues, such as the epidermis, mesophyll and phloem, but not all of them play a key role in determining the feeding preference of aphids. In this study, electrically recorded feeding behaviors of cabbage aphids were combined with choice tests and microscopic observations to understand the feeding preference of cabbage aphids on oilseed rape cultivars. The choice tests showed that more cabbage aphids survived on 'Qianyou18', and less on 'Zhongshuang11', compared with the other cultivars. The results of the choice tests were paradoxical with the results analyzed from the general and mesophyll-associated variables. The thick upper epidermis with bushy long trichomes on the leaves of 'Zhongshuang11' delayed the first probe of the cabbage aphids. The duration of phloem-feeding was similar among the four cultivars although there were differences in the hindrance of the mesophyll. However, salivation was increased when the aphids fed on 'Zhongshuang11', further indicating that the leaf's physical properties could be important for aphid feeding preference on the four cultivars.
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