Possible effects of leaf tissue characteristics of oilseed rapeBrassica napuson probing and feeding behaviors of cabbage aphidsBrevicoryne brassicae
文献类型： 外文期刊
作者： Hao, Zhong-Ping 1 ; Zhan, Hai-Xia 1 ; Gao, Ling-Ling 2 ; Huang, Fang 3 ; Zhu, Li-Ni 4 ; 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, Peoples R China
2.Commonwealth Sci & Ind Res Org, Agr & Food Business Unit, Wembley, WA 6913, Australia
3.Huzhou Customs, Huzhou 313000, Peoples R China
4.Anhui Acad Agr Sci, Hefei 230031, Peoples R China
关键词： Anatomical structure; Cabbage aphid; Electrical penetration graph; Feeding behavior; Oilseed rape; Resistance
期刊名称：ARTHROPOD-PLANT INTERACTIONS （ 影响因子：1.988； 五年影响因子：2.059 ）
ISSN： 1872-8855
年卷期：
页码：
收录情况： SCI
摘要： Obstacles in different tissue layers of leaves can influence aphid feeding behavior and host preference. In this study, we examined the feeding behaviors of cabbage aphidsBrevicoryne brassicae(Linnaeus) (Hemiptera: Aphididae) on the five oilseed rape cultivars with varied levels of aphid susceptibility using the electropenetrography (EPG) technique. The leaf anatomical structures of the five oilseed rape cultivars were also analyzed using the microscopical observations. The results showed that the cabbage aphid feeding behaviors varied among the five cultivars. On 'Dehezayou8' which had the highest aphid population in the field, the cabbage aphids showed significantly shorter non-probing time to the first phloem contact, shorter duration of the no phloematic phase, and longer average probing duration than those on 'Zhongyou821' which showed the least aphid population. In the mesophyll of 'Dehezayou8,' the cabbage aphids made significantly fewer brief probes and spent a shorter time in penetrating the mesophyll cells than on 'Zhongyou821.' In the phloem, the aphids on 'Dehezayou8' secreted less saliva and ingested more sap than those on 'Zhongyou821.' On 'Dehezayou8,' the aphids took the shortest time to first penetration than they did on the other cultivars. 'Dehezayou8' had relatively thin upper epidermis and rare short trichomes, which might have facilitated the aphid infestation. Our results suggested that the leaf tissue characteristics of oilseed rape cultivars, such as epidermis thickness, trichomes, and the factors from mesophyll and phloem could be associated with aphid feeding preference and therefore aphid population in the field.
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