Impact of rutin on growth, development and oviposition of Bt-susceptible and Bt-resistant pink bollworm

IF 1.2 4区 农林科学 Q3 ENTOMOLOGY Entomological Research Pub Date : 2024-01-12 DOI:10.1111/1748-5967.12702
Ling Wang, Dong Xu, Yi Yang, Weiguo Liu, Shengbo Cong, Wenjing Li, Nina Yang, Haichen Yin, Lirong Jin, Huaiheng Wu, Peng Wan
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Abstract

The evolution of pest resistance to insecticidal proteins from Bacillus thuringiensis (Bt) restricts the sustainable application of transgenic Bt crops, and exploring other ecofriendly insecticides to efficiently suppress Bt-resistant populations is thus urgently needed. The plant secondary metabolite rutin possesses pest resistance effects and plays an important role in plant resistance to pests, but the effect of rutin on pink bollworms is unclear. We investigated the effects of rutin on two types (Bt-susceptible and Bt-resistant) of pink bollworms (Pectinophora gossypiella). Rutin had significant inhibitory effects on the growth, development, and oviposition of both Bt-susceptible and Bt-resistant strains. For both strains, rutin ingestion by larvae did not significantly affect larval survival at 7 days after treatment or egg hatching rate but significantly decreased pupation rate, eclosion rate, neonate-to-adult survival, pupal weight and eggs per female and significantly prolonged larval developmental periods, and the effect increased with increasing rutin content. The response to rutin ingestion was basically consistent between Bt-resistant and Bt-susceptible strains, indicating that the Bt-resistant strain did not exhibit cross-resistance to rutin. These results provide a reference basis for green control and resistance management of pink bollworms and may be used as a component of comprehensive management for this pest.

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芦丁对易感 Bt 和抗 Bt 粉红铃虫的生长、发育和产卵的影响
害虫对苏云金芽孢杆菌(Bt)杀虫蛋白的抗性进化限制了转基因 Bt 作物的可持续应用,因此迫切需要探索其他生态友好型杀虫剂来有效抑制 Bt 抗性种群。植物次生代谢产物芦丁具有抗害虫作用,在植物抗害虫过程中发挥着重要作用,但芦丁对粉铃虫的影响尚不清楚。我们研究了芦丁对两种粉铃虫(Bt 易感虫和 Bt 抗虫虫)的影响。芦丁对 Bt 敏感虫株和 Bt 抗性虫株的生长、发育和产卵都有明显的抑制作用。对于这两种虫株,幼虫摄入芦丁不会显著影响处理后 7 天的幼虫存活率或卵孵化率,但会显著降低蛹化率、羽化率、新生到成虫的存活率、蛹重和每只雌虫的卵数,并显著延长幼虫的发育期,而且随着芦丁含量的增加,影响也会增加。抗 Bt 菌株和对 Bt 敏感的菌株摄入芦丁后的反应基本一致,表明抗 Bt 菌株没有表现出对芦丁的交叉抗性。这些结果为粉铃虫的绿色防控和抗性管理提供了参考依据,可作为该害虫综合治理的一个组成部分。
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来源期刊
CiteScore
2.50
自引率
7.70%
发文量
64
期刊介绍: Entomological Research is the successor of the Korean Journal of Entomology. Published by the Entomological Society of Korea (ESK) since 1970, it is the official English language journal of ESK, and publishes original research articles dealing with any aspect of entomology. Papers in any of the following fields will be considered: -systematics- ecology- physiology- biochemistry- pest control- embryology- genetics- cell and molecular biology- medical entomology- apiculture and sericulture. The Journal publishes research papers and invited reviews.
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