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Multitrophic interactions influenced by plant growth promoting rhizobacteria in commercial and wild tomato plants

Grant number: 19/24492-6
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): December 01, 2019
Effective date (End): November 30, 2022
Field of knowledge:Agronomical Sciences - Agronomy - Plant Health
Cooperation agreement: CNPq - INCTs
Principal researcher:José Maurício Simões Bento
Grantee:Diego Martins Magalhães
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated research grant:14/50871-0 - INCT 2014: National Institute of Science and Technology of Semiochemicals in Agriculture, AP.TEM


Beneficial soil-borne microbes, such as plant growth promoting rhizobacteria, can affect the interactions of plants with insects at different trophic levels. However, the underlying mechanisms of plant-mediated interactions between rhizobacteria and insects are still poorly understood. Plant growth promoting rhizobacteria have been characterized for increasing nutrient acquisition and plant growth. These beneficial microbes may also confer broad-spectrum resistance to insect herbivores, by increasing direct and indirect plant defences, both above and belowground, mainly via the release of volatile organic compounds. Microorganism soil communities can still influence floral characteristics, thus potentially altering pollinator attraction and visitation. Another aspect that can alter species interactions is plant domestication. The aim of this project is to evaluate the underlying mechanisms involved in plant-mediated interactions between non-pathogenic rhizobacteria Bacillus amyloliquefaciens and Azospirillum brasilense, the herbivore Tuta absoluta, mirid predators and pollinators, using commercial and wild tomato plants. (AU)

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