Heavy metals in agricultural soils: From plants to our daily life

Autores

  • Leticia Rodrigues Alves UNESP/FCAV
  • André Rodrigues dos Reis UNESP/FCE
  • Priscila Lupino Gratão UNESP/FCAV

DOI:

https://doi.org/10.15361/1984-5529.2016v44n3p346-361

Palavras-chave:

contamination, pollutants, abiotic stress,

Resumo

Heavy metal contamination in soils is a major environmental concern that affects large areas worldwide. Agricultural practices have been the main source of heavy metals in soil such as lead, chromium, arsenic, zinc, cadmium, copper and nickel. Plants can uptake this toxic metals and have evolved defense mecha­nisms to avoid or minimize damages. 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 are highly toxic and must be detoxified by cellular stress responses, if the plant is to survive and grow. Heavy metals contaminated plants cause losses in crop production and risks for human health. Thus, this review aims to compile some information about research work on concentration of heavy metals until they reach the food chain for transferring to crops. 

Biografia do Autor

Leticia Rodrigues Alves, UNESP/FCAV

Departamento de Biologia aplicada a agricultura, Estresse abiótico em plantas cultivadas

André Rodrigues dos Reis, UNESP/FCE

Departamento de Engenharia de Biossistemas, fisiologia e bioquimica de plantas cultivadas

Priscila Lupino Gratão, UNESP/FCAV

Departamento de Biologia aplicada a agricultura, Estresse abiótico em plantas cultivadas

Publicado

18/07/2016

Edição

Seção

Fitotecnia - Crop Production