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Study of the interaction soil-plant-aluminum using tomato varieties for tolerance to toxic elements

Grant number: 11/23019-3
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): March 01, 2012
Effective date (End): May 31, 2015
Field of knowledge:Agronomical Sciences - Agronomy
Principal Investigator:Ricardo Antunes de Azevedo
Grantee:Roberta Corrêa Nogueirol
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated research grant:09/54676-0 - Oxidative stress induced by metals: new approaches, AP.TEM

Abstract

The soils of tropical and subtropical regions are usually acidic and have high levels of aluminum (Al). Al toxicity to plants is a result of the high affinity cationic Al with cell walls, membranes and metabolites. Al also changes the cellular homeostasis by altering the activity of membrane channels and the influx of ions, by binding to enzymes and other cellular components. The purpose of this project is to study the behavior of two varieties of tomato exposed to Al through the process of oxidative stress resulting from exposure to element. Using the parameters described throughout the methodology we can characterize the varieties of plants in relation to defense and tolerance mechanisms to Al toxicity. A pilot experiment will be conducted to define the Al concentrations by response surface and the further cultivation in the soil will help to elucidate the dynamic behavior of the element in soil-plant system, evaluating the influence of the soil matrix on the bioavailability of the element.

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VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

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)
NOGUEIROL, ROBERTA CORREA; MONTEIRO, FRANCISCO ANTONIO; DE SOUZA JUNIOR, JOAO CARDOSO; AZEVEDO, RICARDO ANTUNES. NO3-/NH4(+) proportions affect cadmium bioaccumulation and tolerance of tomato. Environmental Science and Pollution Research, v. 25, n. 14, SI, p. 13916-13928, . (15/20625-0, 11/23019-3, 09/54676-0)
NOGUEIROL, ROBERTA CORREA; MONTEIRO, FRANCISCO ANTONIO; AZEVEDO, RICARDO ANTUNES. Tropical soils cultivated with tomato: fractionation and speciation of Al. ENVIRONMENTAL MONITORING AND ASSESSMENT, v. 187, n. 4, . (11/23019-3, 09/54676-0)
NOGUEIROL, ROBERTA CORREA; MONTEIRO, FRANCISCO ANTONIO; DE SOUZA JUNIOR, JOAO CARDOSO; AZEVEDO, RICARDO ANTUNES. NO3-/NH4(+) proportions affect cadmium bioaccumulation and tolerance of tomato. Environmental Science and Pollution Research, v. 25, n. 14, p. 13-pg., . (09/54676-0, 11/23019-3, 15/20625-0)

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