尼拉帕尔瓦塔 (Nilaparvata lugens) 中的色素介导的翅膀二态:由宿主植物衰老引发的生存策略
Yutao Hu1, Kai Lin1, Jiahui Liu1
1State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou, China.
Insect science
|January 8, 2026
概括
血清素 (5-HT) 调节棕色植物 (BPH) 的翅膀二态性,适应大米衰老. 这一发现为可持续的害虫控制提供了新的策略.
科学领域:
- 昆虫与植物的相互作用
- 化学生态化学生态学
- 行为分子机制的行为.
背景情况:
- 棕色 (BPH) 表现出影响迁移和人口动态的翅膀二态性.
- BPH翅膀二态性与宿主植物的营养质量和衰老有关.
- 驱动BPH行为适应宿主植物衰老的精确机制是未知的.
研究的目的:
- 为了阐明基底的分子机制 BPH 翅膀二态化 作为对宿主植物衰老的反应.
- 为了确定关键的信号通路和分子参与BPH适应黄色成熟大米.
- 探索可持续BPH管理的潜在目标.
主要方法:
- 高性能液体染色学 (HPLC) 用于测量血清素 (5-HT) 水平.
- 异源的 5-HT 和 5- 基三丰 (5-HTP) 的管理.
- 使用α-甲基托芬 (AMTP) 制造血清合成的药理抑制.
- 对5-HT合成途径酶 (NlTRH,NlAADC,NlPAH) 的鉴定和功能分析.
- 对胰岛素样3 (NlIlp3) 和胰岛素受体 (NlInR1,NlInR2) 的基因表达分析.
主要成果:
- 血清素 (5-HT) 水平在敏感发育阶段暴露在黄色成熟大米中,在BPH中显著增加.
- 外源的5-HT和5-HTP促进了长翼形态的发展.
- 抑制5-HT合成减弱了翅膀模态反应.
- 三酸化酶 (NlTRH) 和芳香L-氨基酸脱碳化酶 (NlAADC) 调节了NlIlp3的表达,这反过来又通过NlInR1和NlInR2.2控制了机翼二态.
- 氨酸氧化酶 (NlPAH) 并没有参与.
结论:
- 血清素在对宿主植物衰老的反应中,在调解BPH翅膀变态方面发挥着至关重要的作用.
- 血清素-NlIlp3-NlInR通路对于BPH适应黄色成熟大米至关重要.
- 这项研究为开发针对BPH爆发的可持续策略提供了新的分子标.
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