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Effects of wheat root exudates on the rhizosphere microbiome and its correlation with crop yields

Grant number: 14/16041-0
Support type:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): December 01, 2014
Effective date (End): November 30, 2015
Field of knowledge:Biological Sciences - Microbiology
Principal Investigator:Itamar Soares de Melo
Grantee:Vanessa Nessner Kavamura Noguchi
Supervisor abroad: Tim H. Mauchline
Home Institution: Embrapa Meio-Ambiente. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). Jaguariúna , SP, Brazil
Local de pesquisa : Rothamsted Research, England  
Associated to the scholarship:13/08144-1 - Metagenomics of the rhizosphere of Triticum aestivum l. obtained from wheat blast disease-suppressive soils caused by Magnaporthe grisea, BP.PD


The use of NGS technologies have allowed researchers to study host-microbe interactions at an unprecedent scale. These studies began with a huge interest in the study of human gut microbiome and other eukaryotic hosts. However, it has been realised the importance of studying plant-associated microorganisms, especially those inhabiting the rhizosphere, which is modulated by root exudates that selectively stimulate beneficial microorganisms. Thus, as these beneficial interactions remain poorly understood as well as the effects of root exudates in the recruitment of microorganisms, the main goal of this project is to identify, using metagenomic approaches, whether different wheat varieties are associated with distinct microbial partners and if these associations are linked to plant exudation profile and crop yield. The information and training will be very useful in the search for "good" microbial candidates that could improve plant fitness and act against some important wheat phytopathogens, contributing to the interpretation of results of ongoing experiments in Brazil. (AU)

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)
KAVAMURA, VANESSA NESSNER; TAKETANI, RODRIGO GOUVEA; FERREIRA, CLEDERSON; DE MELO, ITAMAR SOARES; MENDES, RODRIGO. The role of species turnover in structuring bacterial communities in a local scale in the cactus rhizosphere. PLANT AND SOIL, v. 425, n. 1-2, p. 101-112, APR 2018. Web of Science Citations: 1.
KAVAMURA, VANESSA NESSNER; SANTOS, SUIKINAI NOBRE; TAKETANI, RODRIGO GOUVEA; FIGUEIREDO VASCONCELLOS, RAFAEL LEANDRO; MELO, ITAMAR SOARES. Draft Genome Sequence of Plant Growth-Promoting Drought-Tolerant Bacillus sp. Strain CMAA 1363 Isolated from the Brazilian Caatinga Biome. MICROBIOLOGY RESOURCE ANNOUNCEMENTS, v. 5, n. 5 FEB 2017. Web of Science Citations: 0.

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