Hormesis in plants under Cd exposure: From toxic to beneficial element?

Autor(es)

Carvalho, Marcia E. A. ^[1] ; Castro, Paulo R. C. ^[2] ; Azevedo, Ricardo A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo ESALQ USP, Escola Super Agr Luiz de Queiroz, Dept Genet, Ave Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil

^[2] Univ Sao Paulo Esalq USP, Escola Super Agr Luiz de Queiroz, Dept Ciencias Biol, Ave Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: JOURNAL OF HAZARDOUS MATERIALS; v. 384, FEB 15 2020.
• Citações Web of Science: 45

Resumo

Tolerance level to cadmium (Cd) toxicity is generally associated with reductions of the internal Cd accumulation in living organisms. In plants, Cd exposure frequently triggers negative effects on their growth and productivity. However, an increased number of studies has reported the improved performance of some plant species (or their accessions/genotypes/varieties/cultivars/clones) to Cd exposure, despite Cd accumulation in their roots and shoots. These results indicate that plants have developed protective strategies to neutralize the side-effects from Cd toxicity or, more controversially, mechanisms that employ Cd as beneficial element. Here, we gathered information about Cd-induced hormetic effects on plants, and explored the potential mechanisms that allow them to have a better performance under Cd exposure. The promotion of plant development depends on both direct and indirect Cd-induced alterations in the metabolism of plants and their surround environment. In addition, the mechanisms behind the positive Cd-induced transgenerational effects were also discussed in the present paper. (AU)

• Processo FAPESP: 09/54676-0 - Estresse oxidativo induzido por metais: novas abordagens
• Beneficiário: Ricardo Antunes de Azevedo
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 15/26640-1 - Estudo dos mecanismos de tolerância ao cádmio em acessos de tomateiros: abordagens moleculares
• Beneficiário: Marcia Eugenia Amaral de Carvalho
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 13/15217-5 - Abordagem integrada de parâmetros anatômicos, fisiológicos, bioquímicos e moleculares para o estudo de mecanismos de tolerância ao cádmio em acessos de tomateiro
• Beneficiário: Marcia Eugenia Amaral de Carvalho
• Modalidade de apoio: Bolsas no Brasil - Doutorado