Assessing Arundo donax L. in vitro-tolerance for phytoremediation purposes

被引：20

作者：

Cano-Ruiz, J. ^{[1
]}

Ruiz Galea, M. ^{[1
]}

Amoros, M. C. ^{[1
]}

Alonso, J. ^{[1
]}

Mauri, P., V ^{[1
]}

Lobo, M. C. ^{[1
]}

机构：

[1] IMIDRA, Agroenvironm Dept, A-2 Km 38,2, Alcala De Henares 28800, Madrid, Spain

来源：

CHEMOSPHERE | 2020年 / 252卷

关键词：

Heavy metals; Energy crops; Giant reed; Remediation; HEAVY-METALS; GROWTH; WATER; SOIL; CONTAMINATION; EFFICIENCY; ECOTYPES; NICKEL; ENERGY;

D O I：

10.1016/j.chemosphere.2020.126576

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Phytoremediation using high production crops could be an alternative for the recovery of metals polluted soils. In this sense, the Arundo donax L. energy crop has shown tolerance to moderate concentrations of heavy metals. The objective of this work was to test the tolerance of micropropagated plants of Arundo donax to increasing concentrations of cadmium, chromium, cooper, nickel and lead, in an in vitro culture medium. Biomass production and concentration of heavy metal in shoots and roots were analyzed. Results showed that heavy metals were accumulated mostly in subterranean organs. The increase in heavy metal concentration was dose dependent and not always follows a linear relationship. Arundo donax showed a broad tolerance to cadmium (0.5 mM), chromium (0.2 mM), cooper (2 mM), nickel (0.5 mM) and lead (1 mM). In relation to cooper, Arundo donax showed a hyperaccumulative potential. These results suggest the potential use of Arundo donax in the phytomanagement of polluted soils although further studies should be carried out using polluted soils. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：7

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