评估从秋季棉铃虫尸体中提取的真菌和细菌分离物对鞘翅目毛虫和棉铃象鼻虫成虫的昆虫致病力

IF 1.4 3区 农林科学 Q2 ENTOMOLOGY Neotropical Entomology Pub Date : 2024-08-01 Epub Date: 2024-05-07 DOI:10.1007/s13744-024-01159-0
Lidiane Maria Dos Santos Moreira, Luciene Silva Marinho, Robério Carlos Santos Neves, Ricardo Harakava, Layara Alexandre Bessa, Luciana Cristina Vitorino
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引用次数: 0

摘要

由于微生物具有替代化学防治方法的潜力,人们越来越关注利用微生物对农业害虫进行生物防治。昆虫尸体是昆虫病原微生物的潜在来源。我们测试了从 Spodoptera frugiperda (JE Smith) 尸体中分离出的细菌和真菌是否会影响其生存、发育、产卵模式和孵化率,以及是否会诱导 Anthonomus grandis Boheman 成虫死亡。我们从秋季军虫尸体中分离出了肠杆菌和沙雷氏菌,以及真菌 Scopulariopsis sp.荷马肠杆菌(Enterobacter hormaechei)和A. nomiae对S. frugiperda具有致病性,影响成虫和蛹的存活。真菌 Scopulariopsis sp.不会影响 S. frugiperda 毛虫和蛹的存活;但由于作用较晚,蛾和卵可能会受到影响。曲霉菌(Aspergillus nomiae)也会增加大青虫成虫的死亡率,并在暴露于食物的早期阶段影响 S. frugiperda 的发育,表现为垂直孢子转移到后代和低孵化率。荷马肠杆菌和 A. nomiae 是这些害虫的潜在生物控制剂,值得从毒理学的角度进行进一步研究,并随后在涉及可改善农业可持续性做法的配方的田间试验中进行研究。
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Assessment of the Entomopathogenic Potential of Fungal and Bacterial Isolates from Fall Armyworm Cadavers Against Spodoptera frugiperda Caterpillars and the Adult Boll Weevil, Anthonomus grandis.

Increased attention is being focused on the biological control of agricultural pests using microorganisms, owing to their potential as a viable substitute for chemical control methods. Insect cadavers constitute a potential source of entomopathogenic microorganisms. We tested whether bacteria and fungi isolated from Spodoptera frugiperda (JE Smith) cadavers could affect its survival, development, egg-laying pattern, and hatchability, as well as induce mortality in Anthonomus grandis Boheman adults. We isolated the bacteria Enterobacter hormaechei and Serratia marcescens and the fungi Scopulariopsis sp. and Aspergillus nomiae from fall armyworm cadavers and the pest insects were subjected to an artificial diet enriched with bacteria cells or fungal spores to be tested, in the case of S. frugiperda, and only fungal spores in the case of A. grandis. Enterobacter hormaechei and A. nomiae were pathogenic to S. frugiperda, affecting the survival of adults and pupae. The fungus Scopulariopsis sp. does not affect the survival of S. frugiperda caterpillars and pupae; however, due to late action, moths and eggs may be affected. Aspergillus nomiae also increased mortality of A. grandis adults, as well as the development of S. frugiperda in the early stages of exposure to the diet, as indicated by the vertical spore transfer to offspring and low hatchability. Enterobacter hormaechei and A. nomiae are potential biocontrol agents for these pests, and warrant further investigation from a toxicological point of view and subsequently in field tests involving formulations that could improve agricultural sustainability practices.

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来源期刊
Neotropical Entomology
Neotropical Entomology 生物-昆虫学
CiteScore
3.30
自引率
5.60%
发文量
69
审稿时长
6-12 weeks
期刊介绍: Neotropical Entomology is a bimonthly journal, edited by the Sociedade Entomológica do Brasil (Entomological Society of Brazil) that publishes original articles produced by Brazilian and international experts in several subspecialties of entomology. These include bionomics, systematics, morphology, physiology, behavior, ecology, biological control, crop protection and acarology.
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