Scholarship 19/08522-2 - Compostos orgânicos voláteis, Metabolômica - BV FAPESP
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Identification and characterization of volatiles as crop growth inducers

Grant number: 19/08522-2
Support Opportunities:Scholarships in Brazil - Master
Start date until: August 01, 2019
End date until: July 31, 2021
Field of knowledge:Biological Sciences - Microbiology - Applied Microbiology
Agreement: Agilent
Principal Investigator:Juliana Velasco de Castro Oliveira
Grantee:Natália Oliveira de Araujo
Host Institution: Centro Nacional de Pesquisa em Energia e Materiais (CNPEM). Ministério da Ciência, Tecnologia e Inovação (Brasil). Campinas , SP, Brazil
Company:Ministério da Ciência, Tecnologia e Inovação (Brasil). Centro Nacional de Pesquisa em Energia e Materiais (CNPEM)
Associated research grant:17/20521-6 - HS-GC/MS platform for the analysis of plant growth promoter volatiles, AP.PITE

Abstract

The need to adopt more sustainable practices in agriculture has increased the demand for bioinoculants development and research. In this regard, plant growth-promoting bacteria (PGPB) have become the target of studies for increasing the yield of agricultural crops through rising nutrient availability in the soil and the synthesis of plant hormones such as auxin and gibberiline. In addition, PGPB emit volatile organic compounds (VOCs) which are able to promote plant growth without root system colonization. VOCs are small gaseous molecules of lipophilic nature that act on short and long-distance organism interactions. To ensure better results in plant productivity, promising strains of PGPB, isolated from sugarcane root and soil, should be investigated to explore their potential to promote growth through VOCs emission. Until now, few researches have been conducted to decipher physiological and molecular mechanisms involved in the growth of relevant agricultural crops stimulated by bacterial volatiles. Model plants of C3 metabolism such as Arabidopsis thaliana and Oryza sativa (also an important crop) are considered important for new discoveries on the growth promotion mediated by VOCs. The main objectives of this project are to: (i)evaluate, in vitro, the potential of 21 PGPB strains to promote plant growth mediated by VOCs,(ii) identify and quantify the volatiles produced by the five best strains using the HS-GC/MS platform (iii) evaluate, in vitro, if specific VOCs in different mixtures and concentrations are able to promote plant growth, (iv) evaluate the plants physiological response (quantification of chlorophyll and plant hormones) to the VOCs produced by the five best strains, (v)validate, in vivo assays, the performance of the five best VOCs-producing strains, and (vi) test, in vivo, the two best VOCs-producing strains in two relevant Brazillian crops: sugarcane and maize. As a long-term goal, we expect to develop bioinoculants as a sustainable approach to reduce chemical supplies in crops, increase plant productivity, as well as reduce production costs.

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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)
ALMEIDA, OCTAVIO AUGUSTO COSTA; DE ARAUJO, NATALIA OLIVEIRA; DIAS, BRUNO HENRIQUE SILVA; FREITAS, CARLA DE SANT'ANNA; COERINI, LUCIANE FENDER; RYU, CHOONG-MIN; OLIVEIRA, JULIANA VELASCO DE CASTRO. The power of the smallest: The inhibitory activity of microbial volatile organic compounds against phytopathogens. FRONTIERS IN MICROBIOLOGY, v. 13, p. 31-pg., . (18/04184-2, 17/24395-5, 22/00474-1, 19/08522-2)
ALMEIDA, OCTAVIO AUGUSTO COSTA; DE ARAUJO, NATALIA OLIVEIRA; MULATO, ALINE TIEPPO NOGUEIRA; PERSINOTI, GABRIELA FELIX; SFORCA, MAURICIO LUIS; CALDERAN-RODRIGUES, MARIA JULIANA; OLIVEIRA, JULIANA VELASCO DE CASTRO. Bacterial volatile organic compounds (VOCs) promote growth and induce metabolic changes in rice. FRONTIERS IN PLANT SCIENCE, v. 13, p. 16-pg., . (17/20521-6, 22/00474-1, 19/08522-2)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
ARAUJO, Natália Oliveira de. Exploring bacterial volatile organic compounds to increase the growth and health of crops. 2021. Master's Dissertation - Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia Campinas, SP.

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