Selenium enhanced phytoremediation of diesel contaminated soil by Alternanthera philoxeroides

Copyright © 2019 Elsevier Inc. All rights reserved..

Using a 60-day pot culture experiment, we investigated the effect of selenium on phytoremediation of soil containing high-level diesel by Alternanthera philoxeroides (alligator weed). Diesel (20 g kg-1) decreased the growth of A. philoxeroides and induced oxidative stress, as indicated by tissue levels of hydrogen peroxide (H2O2) and malondialdehyde (MDA). Adding Se (0.5 or 1.5 mg kg-1) to diesel-treated soil alleviated oxidative stress and improved biomass production, and the low dose was as effective as the high dose. After 60 days, the reduction in rhizospheric soil diesel was 20.1 ± 0.55% without Se and 35.2 ± 3.6% with Se, showing a significant increase in efficiency. Again, the low Se dose was as effective as the high dose. These findings advance the field phytoremediation by demonstrating that Se, at 0.5 mg kg-1, enhances removal and increases plant tolerance to petroleum hydrocarbons.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:173

Enthalten in:

Ecotoxicology and environmental safety - 173(2019) vom: 30. Mai, Seite 347-352

Sprache:

Englisch

Beteiligte Personen:

Huang, Yingping [VerfasserIn]
Song, Yizhi [VerfasserIn]
Johnson, David [VerfasserIn]
Huang, Jueying [VerfasserIn]
Dong, Ren [VerfasserIn]
Liu, Huigang [VerfasserIn]

Links:

Volltext

Themen:

Alternanthera philoxeroides
Diesel contamination
Gasoline
H6241UJ22B
Journal Article
Oxidative stress
Phytoremediation
Selenium
Soil Pollutants

Anmerkungen:

Date Completed 11.04.2019

Date Revised 11.04.2019

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ecoenv.2019.02.040

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM294099832