Influence of Soil Chemistry and Plant Physiology in the Phytoremediation of Cu, Mn, and Zn

• Tipo: Outra Publicação em Revista Científica Internacional
• Data: 2014

Autores

Edgar Pinto (Autor) Outra; Ana A R M Aguiar (Autor) FCUP; Isabel M P L V O Ferreira (Autor) FFUP

Revista

Título: Critical Reviews in Plant Sciences

Vol. 33

Páginas: 351-373

ISSN: 0735-2689

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 53 Citações

Scopus - 64 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências biológicas

Outras Informações

ID Authenticus: P-009-GTC

DOI: 10.1080/07352689.2014.885729

Abstract (EN): Different anthropogenic sources of metals can result from agricultural, industrial, military, mining and urban activities that contribute to environmental pollution. Plants can be grown for phytoremediation to remove or stabilize contaminants in water and soil. Copper (Cu), manganese (Mn) and zinc (Zn) are trace essential metals for plants, although their role in homeostasis in plants must be strictly regulated to avoid toxicity. In this review, we summarize the processes involved in the bioavailability, uptake, transport and storage of Cu, Mn and Zn in plants. The efficiency of phytoremediation depends on several factors including metal bioavailability and plant uptake, translocation and tolerance mechanisms. Soil parameters, such as clay fraction, organic matter content, oxidation state, pH, redox potential, aeration, and the presence of specific organisms, play fundamental roles in the uptake of trace essential metals. Key processes in the metal homeostasis network in plants have been identified. Membrane transporters involved in the acquisition, transport and storage of trace essential metals are reviewed. Recent advances in understanding the biochemical and molecular mechanisms of Cu, Mn and Zn hyperaccumulation are described. The use of plant-bacteria associations, plant-fungi associations and genetic engineering has opened a new range of opportunities to improve the efficiency of phytoremediation. The main directions for future research are proposed from the investigation of published results.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 23