Essentiality of nickel in plants: a role in plant stresses

Autor(es)

Fabiano, Cabo C. ^[1] ; Tezotto, Tiago ^[2] ; Favarin, Jose L. ^[2] ; Polacco, Joseph C. ^[3] ; Mazzafera, Paulo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Biol, Dept Biol Vegetal, BR-13083862 Campinas, SP - Brazil

^[2] Univ Sao Paulo, Escola Super Agr Luiz de Queioz, Dept Prod Vegetal, Piracicaba - Brazil

^[3] Univ Missouri, Dept Biochem, Interdisciplinary Plant Grp, Columbia, MO - USA

• Tipo de documento: Artigo Científico
• Fonte: FRONTIERS IN PLANT SCIENCE; v. 6, SEP 23 2015.
• Citações Web of Science: 26

Resumo

The element Ni is considered an essential plant micronutrient because it acts as an activator of the enzyme urease. Recent studies have shown that Ni may activate an isoform of glyoxalase I, which performs an important step in the degradation of methylglyoxal (MG), a potent cytotoxic compound naturally produced by cellular metabolism. Reduced glutathione (GSH) is consumed and regenerated in the process of detoxification of MG, which is produced during stress (stress-induced production). We examine the role of Ni in the relationship between the MG cycle and GSH homeostasis and suggest that Ni may have a key participation in plant antioxidant metabolism, especially in stressful situations. (AU)

• Processo FAPESP: 14/09730-4 - Urease no metabolismo de N em plantas e sua relação com o fornecimento de Ni como nutriente
• Beneficiário: Paulo Mazzafera
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional