Endophytic radicular and rhizospheric microbiota associated with the endemic Cerrado palm, Butia archeri

Silva, Cintia Faria da; Vitorino, Luciana Cristina; Pinheiro, Liliane Cira; Siqueira, Kátia Aparecida de; Soares, Marcos Antônio; Souchie, Edson Luiz

doi:10.30848/pjb2021-4(23)

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…This has a direct impact on research on microbial strains and metabolites for use in the composition of inoculant formulations (e.g., Sabbahi et al ( 2022 ); Haris et al ( 2021 ); Volpiano et al ( 2018 ); Polonio et al ( 2015 )). Biocontrol microorganisms have already been prospected from several environmental samples, as well as rhizospheric or endophytic microorganisms from native, medicinal, or commercial plants (Giannelli et al 2022 ; Da Silva et al 2021 , 2018 ; Hussain et al 2016 ). Alternative sources such as insect cadavers have been suggested as a source for prospecting entomopathogenic strains (Abdel-Raheem 2022 ; Sharma et al 2020 ).…”

Section: Introductionmentioning

confidence: 99%

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

Dos Santos Moreira,

Marinho,

Neves

et al. 2024

Neotrop Entomol

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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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