| 闫文静 1, 朱玉永 2, 张玉栋 1, 吴 娜 1, 张全成 1, 王俊刚 1*.2种蚜虫取食诱导棉花对棉长管蚜与棉蚜取食行为的影响[J].植物保护,2024,50(1):146-151. |
| 2种蚜虫取食诱导棉花对棉长管蚜与棉蚜取食行为的影响 |
| Effects of feeding by two aphid species on the feeding behavior of Acyrthosiphon gossypii and Aphis gossypii on cotton |
| 投稿时间：2022-10-18 修订日期：2023-01-17 |
| DOI：10.16688/j.zwbh.2022654 |
| 中文关键词: 诱导棉花 竞争 取食行为 寄主植物抗虫性 |
| 英文关键词:cotton previously fed by aphids competition feeding behavior host plant resistance to insect |
| 基金项目:国家自然科学基金（31660519, 31660703） |
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| 摘要点击次数: 142 |
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| 中文摘要: |
| 为研究棉长管蚜Acyrthosiphon gossypii 与棉蚜 Aphis gossypii 对蚜虫取食诱导棉花的取食适应性, 揭示取食诱导下两种蚜虫的取食竞争机制, 采用刺探电位图谱技术(electrical penetration graph, EPG)测定在健康棉花、棉长管蚜或棉蚜诱导的棉花上取食6 h的棉长管蚜和棉蚜的16个重要参数, 比较两种蚜虫的取食行为。研究发现:1) 取食健康棉花时, 棉蚜在木质部(G波)的取食持续总时间长于棉长管蚜，棉蚜在木质部的取食能力大于棉长管蚜，但二者在韧皮部的取食能力相差不大。2) 取食棉长管蚜诱导的棉花时, 棉蚜取食韧皮部(E2波)持续的总时间为(2 531.33±60.86)s, 显著大于棉长管蚜E2波持续总时间［(2 196.00±98.91)s］;取食棉蚜诱导的棉花时, 棉蚜取食韧皮部、木质部持续的总时间显著长于棉长管蚜(P＜0.05), 说明棉蚜对于棉蚜诱导棉花的取食耐受性大于棉长管蚜。棉蚜对两种蚜虫取食诱导棉花的适应性更强, 更易在竞争中取得优势。棉长管蚜与棉蚜取食棉长管蚜或棉蚜诱导棉花的F波持续总时间长于健康棉花, 说明经取食诱导的棉花具有一定的抗虫性。 |
| 英文摘要: |
| The feeding adaptability of Acyrthosiphon gossypii and Aphis gossypii to the cotton fed by aphids was analyzed to reveal the feeding competition mechanism between two aphid species. Sixteen important parameters were selected to compare the feeding behaviors of the two aphid species on healthy cotton, the cotton fed by Ap.gossypii and the cotton fed by Ac. gossypii for 6 h by electrical penetration graph (EPG). It was found that: 1) When Ac. gossypii and Ap. gossypii fed on healthy cotton, the total feeding duration of Ap. gossypii in the xylem (G-wave) was longer than that of Ac.gossypii. There was no significant difference in the phloem feeding capacity between Ac. gossypii and Ap.gossypii feeding on healthy cotton, but the feeding capacity of Ap. gossypii in the xylem was greater than that of Ac. gossypii. 2) When Ac. gossypii and Ap.gossypii fed on the cotton previously fed by Ac. gossypii, the total feeding duration of Ap. gossypii in the phloem (E2-wave) was (2 531.33±60.86)s, significantly longer than E2-wave (2 196.00±98.91)s of Ac.gossypii. When Ac. gossypii and Ap. gossypii fed on the cotton previously fed by Ap. gossypii, the total duration of Ap. gossypii in the phloem and xylem was significantly greater than that of Ac.gossypii (P＜0.05), suggesting that the feeding tolerance of Ap. gossypii was greater than Ac. gossypii for the cotton previously fed by Ap.gossypii. Ap. gossypii was more adaptable than Ac.gossypii to the cotton previously fed by Ac. gossypii and Ap. gossypii, indicating an advantage in the feeding competition. The total duration of F-wave of Ac. gossypii and Ap. gossypii feeding on the cotton previously fed by Ac. gossypii or Ap. gossypii was longer than that on healthy cotton, indicating that the cotton previously fed by aphids can induce insect resistance to some degree. |
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