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HERO ID
4695588
Reference Type
Journal Article
Title
Intra-specific variability of the guaiacol peroxidase (GPOD) activity in roots of Phragmites australis exposed to copper excess
Author(s)
Marchand, L; Grebenshchykova, Z; Mench, M
Year
2016
Is Peer Reviewed?
Yes
Journal
Ecological Engineering
ISSN:
0925-8574
Publisher
ELSEVIER SCIENCE BV
Location
AMSTERDAM
Volume
90
Page Numbers
57-62
DOI
10.1016/j.ecoleng.2016.01.055
Web of Science Id
WOS:000373376700008
Abstract
The intra-specific variability of the soluble guaiacol peroxidase (GPOD) activity in roots of 2-year-old Phragmites australis (Cay.) Trin. ex Steud. exposed to Cu excess (21 days) was investigated. The GPOD activity did not depend on the Cu exposure (0.08 vs. 25 mu M) (p > 0.05) but was influenced by the sampling site (p < 0.05). The lowest GPOD activity (312-461 mu M min(-1)) was found in roots of P. australis from the Capanne site, which displayed the highest total soil Cu (375 mg kg(-1)), while for plants from the three other sites the root GPOD activity remained steady, in the 1062-1389 mu M min(-1) range, independently of the sampling site. Copper excess did not affect the chlorophyll fluorescence for the four populations tested. Evidence of an intra-specific variability of the root GPOD activity, known for scavenging hydrogen peroxides in response to Cu excess, for P. australis provides new hints towards choosing relevant populations of this plant species for further use in constructed wetlands. (C) 2016 Elsevier B.V. All rights reserved.
Keywords
Chlorophyll; Macrophyte; Phytoremediation; Trace element; Constructed wetland
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