Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/24333
Title: Mycorrhization protects Betula pubescens Ehr. from metal-induced oxidative stress increasing its tolerance to grow in an industrial polluted soil
Authors: Fernandez-Fuego, D.
KEUNEN, Els 
CUYPERS, Ann 
Bertrand, A.
González, A.
Issue Date: 2017
Publisher: ELSEVIER SCIENCE BV
Source: JOURNAL OF HAZARDOUS MATERIALS, 336, p. 119-127
Abstract: In recent years, the use of woody plants in phytoremediation has gained popularity due to their high biomass production and their association with mycorrhizal fungi, which can improve their survival and development rates under stress conditions. In this study, mycorrhized and non-mycorrhized white birch plants (Betula pubescens Ehr.) were grown in control and a metal-polluted industrial soil. After 60 days of culture, plant growth and metal accumulation, the content of photosynthetic pigments and oxidative stress markers, as well as the enzymatic activities and gene expressions of antioxidant enzymes were measured. According to our results, mycorrhized birch plants grown in control soil showed an increased activity and gene expression of catalase and ascorbate peroxidase, along with hydrogen peroxide overproduction, which could support the importance of the reactive oxygen species as signaling molecules in the regulation of plant-fungus interactions. Additionally, in polluted soil mycorrhized plants had higher biomass but lower metal accumulation, probably because the symbiotic fungus acted as a barrier to the entrance of metals into the host plants. This behavior led to mitigation in the oxidative challenge, reduced hydrogen peroxide content and diminished activities of the antioxidant enzymes in comparison to non-mycorrhized plants. (C) 2017 Elsevier B.V. All rights reserved.
Notes: [Fernandez-Fuego, D.; Bertrand, A.; Gonzalez, A.] Univ Oviedo, Dept Biol Organismos & Sistemas, Catedrat Rodrigo Uria S-N, E-33071 Oviedo, Spain. [Fernandez-Fuego, D.; Bertrand, A.; Gonzalez, A.] Inst Univ Biotecnol Asturias, Oviedo, Spain. [Keunen, E.; Cuypers, A.] Hasselt Univ, Ctr Environm Sci, Agoralaan Bldg D, B-3590 Diepenbeek, Belgium.
Keywords: Heavy metals; Mycorrhization; Oxidative stress; Gene expression; Phytoremediation;heavy metals; mycorrhization; oxidative stress; gene expression; phytoremediation
Document URI: http://hdl.handle.net/1942/24333
ISSN: 0304-3894
e-ISSN: 1873-3336
DOI: 10.1016/j.jhazmat.2017.04.065
ISI #: 000403519600014
Rights: © 2017 Elsevier B.V. All rights reserved.
Category: A1
Type: Journal Contribution
Validations: ecoom 2018
Appears in Collections:Research publications

Files in This Item:
File Description SizeFormat 
fernandez 1.pdf
  Restricted Access
Published version789.83 kBAdobe PDFView/Open    Request a copy
Fernández-Fuego-2017-JHazMat.pdfPeer-reviewed author version2.27 MBAdobe PDFView/Open
Show full item record

SCOPUSTM   
Citations

20
checked on Sep 3, 2020

WEB OF SCIENCETM
Citations

36
checked on Mar 29, 2024

Page view(s)

74
checked on Sep 7, 2022

Download(s)

248
checked on Sep 7, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.