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Relationships Among the Feeding Behaviors of a Mirid Bug on Cotton Leaves of Different Ages and Plant Biochemical Substances

文献类型： 外文期刊

作者： Song, Haiyan 1 ; Dong, Zhaoke 2 ; Li, Lili 1 ; Lu, Zengbin 3 ; Li, Chao 1 ; Yu, Yi 1 ; Men, Xingyuan 1 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Peoples R China

2.Qingdao Agr Univ, Coll Plant Hlth & Med, Key Lab Integrated Crop Pest Management Shandong, Qingdao 266109, Peoples R China

3.Shandong Acad Agr Sci, Maize Res Inst, Jinan 250100, Peoples R China

关键词： electrical penetration graph; Apolygus lucorum; leaf trait; biochemical substance; cotton

期刊名称：JOURNAL OF INSECT SCIENCE （ 影响因子：1.857； 五年影响因子：1.904 ）

ISSN：

年卷期： 2021 年 21 卷 1 期

页码：

收录情况： SCI

摘要： Apolygus lucorum (Meyer-Dur) (Hemiptera: Miridae) tends to feed on young plant tissues. To explore the relationship between stylet probing behaviors of adult A. lucorum and conditions of cotton leaves, we conducted an experiment using electropenetrography (EPG). Behaviors were recorded on four cotton varieties, in relation to thickness and biochemical traits of differently-aged leaves. Cotton leaf age had a significant effect on the probing behavior of A. lucorum but cotton variety did not. One-day-old leaves of A. lucorum received the highest mean number of stylet probes (penetrations) per insect, and longest mean durations per insect of combined stylet probing or its components, cell rupture and ingestion behaviors. All of the leaf traits (thickness and biochemical substances) were similar among these four cotton varieties. Leaf thickness had a significantly negative effect on the same four variables above. Gossypol and tannin also had a negative impact on combined probing duration. Redundancy analysis showed that the four EPG variables were closely related to nutrient substances (amino acids, sugar, and water) while they had the opposite relationship with plant defense substances (gossypol and tannin). On cotton in the seedling stages, A. lucorum fed more readily on the youngest, thinnest leaves in our no-choice EPG experiments. Nutrients and chemical resistance substances determined the probing duration of A. lucorum. Our findings can contribute to better understanding of patterns of feeding and host consumption by A. lucorum, ultimately improving cotton resistance to A. lucorum.

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