Hormonal control of cadmium-induced oxidative stress: the use of grafting technique

• Grant number: 13/27080-4
• Support Opportunities: Regular Research Grants
• Duration: August 01, 2014 - July 31, 2016
• Field of knowledge: Agronomical Sciences - Agronomy
• Principal Investigator: Priscila Lupino Gratão
• Grantee: Priscila Lupino Gratão
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Associated researchers: Rogério Falleiros Carvalho

Abstract

The contamination of soils and water with metals has created a major environmental problem, leading to considerable losses in plant productivity and hazardous health effects. Exposure to toxic metals can intensify the production of reactive oxygen species (ROS), which are continuously produced in both unstressed and stressed plants cells. Some of the ROS species are highly toxic and must be detoxified by cellular stress responses, if the plant is to survive and grow. The aim of this work is to assess the mode of action and role of antioxidants in protecting tomato plants from stress caused by the presence of cadmium (Cd), concentrating on promising and emerging topics of Cd stress research in plants, such as hormonal control of the antioxidant system. The major aspects will be addressed about the understanding of antioxidant response to Cd and the relation to ethylene and auxin hormones through the use of grafting technique. The study of the antioxidant response of tomato plants in the presence of Cd is important for the understanding of tolerance mechanisms in contaminated environments. (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)

ALVES, LETICIA RODRIGUES; MONTEIRO, CAROLINA CRISTINA; CARVALHO, ROGERIO FALLEIROS; RIBEIRO, PATRICIA CURY; TEZOTTO, TIAGO; AZEVEDO, RICARDO ANTUNES; GRATAO, PRISCILA LUPINO. Cadmium stress related to root-to-shoot communication depends on ethylene and auxin in tomato plants. ENVIRONMENTAL AND EXPERIMENTAL BOTANY, v. 134, p. 102-115, FEB 2017. (13/27080-4)