Evaluation of the action of rhizospheric yeast Torulaspora globosa as an inducer of systemic resistance in maize

• Grant number: 19/24432-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2020
• End date: July 31, 2021
• Field of knowledge: Biological Sciences - Microbiology - Biology and Physiology of Microorganisms
• Principal Investigator: Márcia Maria Rosa Magri
• Grantee: Fernanda de Sousa Colombini
• Host Institution: Centro de Ciências Agrárias (CCA). Universidade Federal de São Carlos (UFSCAR). Araras , SP, Brazil

Abstract

In the current perspective of the need for agricultural production for human and animal feed, we embrace practices that affect the conservation of Brazil's rich biodiversity. In maize, one of the most consumed vegetables in the world, numerous applications of agrochemicals that cause damage to man and the environment are used to control a wide spectrum of phytopathogens. Among the main diseases affecting maize cultivation areas is the fungus Fusarium verticillioides, which causes root, stalk and spike rot and damage to stored grains. In addition to the problems caused by disease, farmers face the consequences of climate change affecting crops where lack of rain causes irreversible damage to production. In order to enable sustainable alternatives, Plant Growth Promoting Microorganisms (PGPMs) have been used as agents in the activation of plant defense mechanisms, contributing to the strengthening and protection of crops. Although several studies present the potential of resistance induction in plants by PGPMs, rhizospheric yeast species responsible for such mechanisms are not yet fully elucidated. In this research project, one aims to evaluate the resistance induction capacity of Torulaspora globosa yeast in maize plants in order to promote an immune response to the phytopathogen Fusarium verticillioides and environmental water stress. In order to investigate the modes of action involved in biological control, we will evaluate the activity of peroxides and phenylalanine ammonia liases on leaves, as well as the degree of severity of symptoms and plant development. (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)

COLOMBINI, FERNANDA DE SOUSA; CECCATO-ANTONINI, SANDRA REGINA; ROSA-MAGRI, MARCIA MARIA. Maize treatment with yeast cells induces resistance against Fusarium rot. Letters in Applied Microbiology, v. N/A, p. 8-pg., 2022-12-22. (19/24432-3)