The gut microbiota composition of Trichoplusia ni is altered by diet and may influence its polyphagous behavior

Autor(es)

Leite-Mondin, M. ^{[1, 2]} ; DiLegge, M. J. ^[1] ; Manter, D. K. ^[3] ; Weir, T. L. ^[4] ; Silva-Filho, M. C. ^[2] ; Vivanco, J. M. ^[1]

Afiliação do(s) autor(es)

^[1] Colorado State Univ, Dept Hort & Landscape Architecture, Ft Collins, CO 80523 - USA

^[2] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Dept Genet, Av Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil

^[3] Ctr Agr Res Serv, USDA, Soil Plant Nutrient Res Unit, Ft Collins, CO - USA

^[4] Colorado State Univ, Dept Food Sci & Human Nutr, Ft Collins, CO 80523 - USA

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 11, n. 1 MAR 11 2021.
• Citações Web of Science: 0

Resumo

Insects are known plant pests, and some of them such as Trichoplusia ni feed on a variety of crops. In this study, Trichoplusia ni was fed distinct diets of leaves of Arabidopsis thaliana or Solanum lycopersicum as well as an artificial diet. After four generations, the microbial composition of the insect gut was evaluated to determine if the diet influenced the structure and function of the microbial communities. The population fed with A. thaliana had higher proportions of Shinella, Terribacillus and Propionibacterium, and these genera are known to have tolerance to glucosinolate activity, which is produced by A. thaliana to deter insects. The population fed with S. lycopersicum expressed increased relative abundances of the Agrobacterium and Rhizobium genera. These microbial members can degrade alkaloids, which are produced by S. lycopersicum. All five of these genera were also present in the respective leaves of either A. thaliana or S. lycopersicum, suggesting that these microbes are acquired by the insects from the diet itself. This study describes a potential mechanism used by generalist insects to become habituated to their available diet based on acquisition of phytochemical degrading gut bacteria. (AU)

• Processo FAPESP: 16/18001-1 - Possível efeito de insetos herbívoros na alteração da composição de microrganismos da rizosfera a partir da secreção diferencial de proteínas e fitoquímicos em Arabidopsis thaliana
• Beneficiário: Márcia Leite Mondin
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/50275-9 - Decifrando os mecanismos moleculares envolvidos na localização subcelular de proteínas e na complexa interação planta-insetos-patógenos
• Beneficiário: Márcio de Castro Silva Filho
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Temático
• Processo FAPESP: 17/05465-2 - Impacto do ataque de insetos herbívoros nos esxudatos e na comunidade de microrganismos da rizosfera de Arabidopsis thaliana
• Beneficiário: Márcia Leite Mondin
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado