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Publication Type J
Authors Van Oosten, M. J. and A. Maggio
Title Functional biology of halophytes in the phytoremediation of heavy metal contaminated soils
Source Environmental and Experimental Botany
Author Keywords Halophytes Phytoremediation Phytoextraction Phytostabilization Phytoexcretion Heavy metals Salt toleranc POLYCYCLIC AROMATIC-HYDROCARBONS SALT-AFFECTED SOIL MESEMBRYANTHEMUM-CRYSTALLINUM SESUVIUM-PORTULACASTRUM SPARTINA-ALTERNIFLORA ENHANCED PHYTOEXTRACTION KOSTELETZKYA-VIRGINICA SALINITY TOLERANCE CALCIUM-OXALATE ABIOTIC STRESS
Abstract Halophytic plants are characterized by their ability to survive, even thrive, at concentrations of sodium and chloride ions that would be toxic to most crop species. Given the diminishing prospects for the availability of fresh water for agriculture, halophytes represent an important resource for both our understanding of the fundamental physiological mechanisms in salt stress adaptation and utilization of saline waters for agriculture. Mechanisms of adaptation that allow halophytes to survive high salt concentrations may be not exclusive to sodium and chloride and may confer tolerance to other toxic ions, including the loosely defined family of heavy metals. It has been recently shown that a number of these halophytes do indeed have ability to accumulate heavy metals or tolerate high levels of toxic ions in the environment. These abilities make some halophytes excellent candidates for phytoextraction and phytostabilization of heavy metals in contaminated soils. This review addresses the general deleterious effects of heavy metals in plants, present known mechanisms of adaptation to heavy metal stress in halophytes and discusses the potential of halophytes for phytoremediation of contaminated soils. Considering the multifaceted potential of halophytes for biomass production in marginal and/or extreme environments, their potential role in the broader context of agriculture and food security should be further explored. (C) 2014 Elsevier B.V. All rights reserved.
Author Address [Van Oosten, Michael James; Maggio, Albino] Univ Naples Federico II, Dept Agr Sci, I-80055 Portici, Italy. Maggio, A (reprint author), Univ Naples Federico II, Dept Agr Sci, Via Univ 100, I-80055 Portici, Italy. almaggio@unina.it
ISSN 0098-8472
ISBN 0098-8472
29-Character Source Abbreviation Environ. Exp. Bot.
Publication Date Mar
Year Published 2015
Volume 111
Beginning Page 135-146
Digital Object Identifier (DOI) 10.1016/j.envexpbot.2014.11.010
Unique Article Identifier WOS:000348895100013
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