期刊
CHEMOSPHERE
卷 182, 期 -, 页码 707-719出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2017.04.093
关键词
Avicennia; Humic acids; Peroxidase; Sediments; ROS; Auxin
资金
- FAPES (Fundacao de Amparo e Pesquisa do Espirito Santo/Espirito Santo State foundation for Support and Research) through the grant Edital FAPES [009/2014]
- University of Padova [60A08-3858/15]
The growing problem of remediation of contaminated sediments dredged from harbor channels needs to be resolved by a cost effective and sustainable technology. Phytoremediation, by ex situ remediation plants, seems to have the potential to replace traditional methods in case of moderately contaminated sediments. On the other side, the need to mix sediments with soil and/or sand to allow an easier establishment of most employed species causes an increase of the volume of the processed substrate up to 30%. Moreover the majority of phytoremediating species are natives of temperate climate belt. Mangroves, with a special focus on the genus Avicennia - a salt secreting species - should represent an effective alternative in terms of adaptation to salty, anoxic sediments and an opportunity to develop ex situ phytoremediation plants in tropical and subtropical regions. The use of humic acid to increase root development, cell antioxidant activity and the potential attenuation of the heavy metals exclusion strategy to increase phytoextraction potentials of mangroves will be reviewed. (C) 2017 Published by Elsevier Ltd.
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