Selenium modulation in ethylene synthesis and cadmium tolerance

• Grant number: 17/04787-6
• Support Opportunities: Regular Research Grants
• Start date: September 01, 2017
• End date: August 31, 2019
• 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: Ricardo Antunes de Azevedo

Abstract

The contamination of soils and water with heavy metal, such as cadmium (Cd) has become a serious environmental problem, leading to losses in plant productivity and irreversible damages to human health. Exposure to toxic metals can intensify the production of reactive oxygen species (ROS), which are continuously produced in both unstressed and stressed plants cells. These ROS species are highly toxic and must be detoxified by antioxidant system. Although, selenium (Se) can reduce the negative effects of abiotic stress, it is considered a non-essential element to plants. In addition, many lines of evidence indicate that Se can be involved in the regulation of ethylene biosynthesis under stress conditions. The aim of this study is to evaluate the role of Se in the modulation of ethylene biosynthesis and the antioxidant responses to Cd stress in cv. Micro-Tom and its hormonal mutant Epinastic (epi). The major aspects will be addressed to get new insights about the role of Se mechanisms that ameliorate oxidative damages and improve plant tolerance in contaminated environments. (AU)

Scientific publications

(10)

(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; ROSSATTO, DAVI RODRIGO; ROSSI, MONICA LANZONI; MARTINELLI, ADRIANA PINHEIRO; GRATAO, PRISCILA LUPINO. Selenium improves photosynthesis and induces ultrastructural changes but does not alleviate cadmium-stress damages in tomato plants. PROTOPLASMA, v. 257, n. 2, p. 597-605, MAR 2020. (17/04787-6)

RITA DE CÁSSIA ALVES; MAYARA CRISTINA MALVAS NICOLAU; MIRELA VANTINI CHECCHIO; GILMAR DA SILVEIRA SOUSA JUNIOR; FRANCISCO DE ASSIS DE OLIVEIRA; RENATO MELO PRADO; PRISCILA LUPINO GRATÃO. Salt stress alleviation by seed priming with silicon in lettuce seedlings: an approach based on enhancing antioxidant responses. Bragantia, v. 79, n. 1, p. 19-29, 2020-03-02. (17/04787-6)

CHECCHIO, MIRELA VANTINI; DE CASSIA ALVES, RITA; DE OLIVEIRA, KEVEIN RUAS; MORO, GUSTAVO VITTI; SANTOS, DURVALINA MARIA MATHIAS DOS; GRATAO, PRISCILA LUPINO. Enhancement of salt tolerance in corn using Azospirillum brasilense: an approach on antioxidant systems. JOURNAL OF PLANT RESEARCH, v. 134, n. 6, JUL 2021. (17/04787-6)

ALVES, LETICIA RODRIGUES; PRADO, EMILAINE ROCHA; DE OLIVEIRA, REGINALDO; SANTOS, ELCIO FERREIRA; DE SOUZA, IVANA LEMOS; DOS REIS, ANDRE RODRIGUES; AZEVEDO, RICARDO ANTUNES; GRATAO, PRISCILA LUPINO. Mechanisms of cadmium-stress avoidance by selenium in tomato plants. ECOTOXICOLOGY, v. 29, n. 5, p. 594-606, JUL 2020. (17/04787-6)

OLIVEIRA, KEVEIN RUAS; SOUZA JUNIOR, JONAS PEREIRA; BENNETT, SARITA JANE; CHECCHIO, MIRELA VANTINI; ALVES, RITA DE CASSIA; FELISBERTO, GUILHERME; PRADO, RENATO DE MELLO; GRATAO, PRISCILA LUPINO. Exogenous silicon and salicylic acid applications improve tolerance to boron toxicity in field pea cultivars by intensifying antioxidant defence systems. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, v. 201, SEP 15 2020. (17/04787-6)

ALVES, LETICIA RODRIGUES; DOS REIS, ANDRE RODRIGUES; PRADO, EMILAINE ROCHA; LAVRES, JOSE; POMPEU, GEORGIA BERTONI; AZEVEDO, RICARDO ANTUNES; GRATAO, PRISCILA LUPINO. New insights into cadmium stressful-conditions: Role of ethylene on selenium-mediated antioxidant enzymes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, v. 186, DEC 30 2019. (17/04787-6)

ALVES, RITA DE CASSIA; DOS SANTOS ZUCCO, MARIA FERNANDA; OLIVEIRA, KEVEIN RUAS; CHECCHIO, MIRELA VANTINI; FRANCO, CAROLINA ANDRADE; KOROSI, KATALIN; GRATAO, PRISCILA LUPINO. Seed Priming with Silicon Improves Plant Resistance to Downy Mildew (Bremia lactucae) in Lettuce Seedlings by Intensifying Antioxidant Defense Systems. SILICON, v. N/A, p. 11-pg., 2022-06-24. (17/04787-6)

ARRUDA, EVERTON MARTINS; COLLIER, LEONARDO SANTOS; OLIVEIRA, KEVEIN RUAS; FLORES, RILNER ALVES; BARROS, LEONARDO RODRIGUES; FERRAZ-ALMEIDA, RISELY; NASCIMENTO, BRUNA BANDEIRA; SANTOS, MARCOS PAULO; DUARTE, TIAGO CAMILO; ANDRADE, CARLOS AUGUSTO OLIVEIRA. Cover plants can contribute on macronutrient accumulation in agroforestry systems during off-season. AGROFORESTRY SYSTEMS, v. 97, n. 6, p. 10-pg., 2023-05-05. (17/04787-6)

ALVES, RITA DE CASSIA; OLIVEIRA, KEVEIN RUAS; BARBOSA LUCIO, JOSE CLEBSON; SILVA, JEFERSON DOS SANTOS; CARREGA, WILLIANS CESAR; QUEIROZ, SAMIRA FURTADO; GRATAO, PRISCILA LUPINO. Exogenous foliar ascorbic acid applications enhance salt-stress tolerance in peanut plants throughout an increase in the activity of major antioxidant enzymes. SOUTH AFRICAN JOURNAL OF BOTANY, v. 150, p. 9-pg., 2022-08-27. (17/04787-6)

ALVES, RITA DE C.; ROSSATTO, DAVI R.; DA SILVA, JEFERSON DOS S.; CHECCHIO, V, MIRELA; DE OLIVEIRA, KEVEIN R.; OLIVEIRA, FRANCISCO DE A.; DE QUEIROZ, SAMIRA F.; DA CRUZ, MARA C. P.; GRATAO, PRISCILA L.. Seed priming with ascorbic acid enhances salt tolerance in micro-tom tomato plants by modifying the antioxidant defense system components. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY, v. 31, JAN 2021. (17/04787-6)