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Designing a microbial synthetic community for improvement of drought stress tolerance in maize plants

Grant number: 18/19100-9
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): February 01, 2019
Effective date (End): January 31, 2021
Field of knowledge:Biological Sciences - Genetics - Molecular Genetics and Genetics of Microorganisms
Principal Investigator:Paulo Arruda
Grantee:Rafael Soares Correa de Souza
Home Institution: Centro de Biologia Molecular e Engenharia Genética (CBMEG). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:16/23218-0 - The Genomics for Climate Change Research Center, AP.PCPE

Abstract

Severe climate change episodes such as prolonged drought or high temperatures negatively impact agricultural crops and place global food production at risk. In recent years, different research fields have been focused on developing technologies capable of sustaining crop productivity under environmental stresses. Among these technologies, the use of beneficial microorganisms has emerged as a promising tool to mitigate the effect of climate changes in plants. In this context, our research group evaluated the bacteria and fungi associated with a variety of sugarcane in a search of bacteria that promote drought tolerance in plants. Our results revealed a group of bacteria extremely efficient in colonizing plant organs and that remains in high abundance throughout the plant development. These microorganisms were isolated and applied as a synthetic microbial community for inoculations assays. Inoculcation of the synthetic community in maize plants was able to increase plant biomass by up to 3 times when compared to non-inoculated plants. The synthetic community also increased drought tolerance in maize and Brachypodium plants. Interestingly, genome sequencing revealed that the bacteria comprising the synthetic community do not harbor commonly investigated plant-growth promoting features in bacteria. We propose to investigate the mechanisms by which this synthetic community is capable of promoting drought tolerance in plants. We will perform inoculation trials in different commercial varieties of maize under drought stress in greenhouse and in field conditions. Inoculated and non-inoculated plants will have their productivity evaluated. The molecular mechanisms involved in drought tolerance induced by the synthetic community will be investigate by analyzing the differential gene expression profile of inoculated and non-inoculated plants.

Articles published in other media outlets (17 total):
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News Medical (Austrália): Microbiome research has surpassed $1.7 billion in the past decade (29/Sep/2020)
Bioengineer (Reino Unido): Microbiome-based technologies drive multibillion-dollar market (28/Sep/2020)
Science Codex: Microbiome-based technologies drive multibillion-dollar market (28/Sep/2020)
Scienmag Science Magazine (Reino Unido): Microbiome-based technologies drive multibillion-dollar market (28/Sep/2020)
Brinkwire (Reino Unido): Microbiome-based technologies drive multibillion-dollar market (28/Sep/2020)
7thSpace: Microbiome-based technologies drive multibillion-dollar market (28/Sep/2020)
INS - Infusion Nurses Society (EUA): Microbiome-based technologies drive multibillion-dollar market (28/Sep/2020)
Health910: Microbiome-based technologies drive multibillion-dollar market (28/Sep/2020)
Ethical Editor EUA): Microbiome-based technologies drive multibillion-dollar market (28/Sep/2020)
Blog Neoprospecta: O futuro das tecnologias baseadas em microbioma (29/Jul/2020)
Tratamento de Água - Notícias: Tecnologias baseadas em microbioma devem movimentar mercado de bilhões de dólares (22/Jul/2020)
Algomais online: Você o que é microbioma? Ele vai movimentar bilhões de dólares (22/Jul/2020)
LabNetwork: Tecnologias baseadas em microbioma devem movimentar mercado de bilhões de dólares (21/Jul/2020)
Revista Pará: Tecnologias baseadas em microbioma devem movimentar mercado de bilhões de dólares (21/Jul/2020)
Portal Neo Mondo: Tecnologias baseadas em microbioma devem movimentar mercado de bilhões de dólares (21/Jul/2020)
Coluna Supinando: Desenvolvimentos com microbiomas devem movimentar mercado de bilhões de dólares (21/Jul/2020)
Revista Analytica online: O Avanço das Tecnologias Baseadas em Microbioma (20/Jul/2020)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE SOUZA, RAFAEL SOARES CORREA; ARMANHI, JADERSON SILVEIRA LEITE; ARRUDA, PAULO. From Microbiome to Traits: Designing Synthetic Microbial Communities for Improved Crop Resiliency. FRONTIERS IN PLANT SCIENCE, v. 11, AUG 27 2020. Web of Science Citations: 2.
CORREA DE SOUZA, RAFAEL SOARES; LEITE ARMANHI, JADERSON SILVEIRA; DAMASCENO, NATALIA DE BRITO; IMPERIAL, JUAN; ARRUDA, PAULO. Genome Sequences of a Plant Beneficial Synthetic Bacterial Community Reveal Genetic Features for Successful Plant Colonization. FRONTIERS IN MICROBIOLOGY, v. 10, AUG 13 2019. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.