Record ID No. |
1790 |
Author(s) |
Wu, N.Y., Zhang, S.Z., Huang, H.L., Shan, X.Q., Christie, P., Wang, Y.S , 2008 |
Affiliation |
Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, PEOPLES R CHINA |
Title |
DDT uptake by arbuscular mycorrhizal alfalfa and depletion in soil as influenced by soil application of a non-ionic surfactant |
Source. Vol.(no):Page |
Environmental Pollution.151(3):569-575p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biochemistry |
Sub-subjects |
Miscellaneous |
Organism |
n.a. |
Country |
PEOPLES R CHINA, Asia |
Abstracts |
A greenhouse pot experiment was conducted to investigate the colonization of
alfalfa roots by the arbuscular mycorrhizal (AM) fungus Glomus etunicatum and application of the
non-ionic surfactant Triton X-100 on DDT uptake by alfalfa and depletion in soil. Mycorrhizal
colonization led to an increase in the accumulation of DDT in roots but a decrease in shoots. The
combination of AM inoculation and Triton X-100 application enhanced DDT uptake by both the roots
and shoots. Application of Triton X-100 gave much lower residual concentrations of DDT in the
bulk soil than in the rhizosphere soil or in the bulk soil without Triton X-100. AM colonization
significantly increased bacterial and fungal counts and dehydrogenase activity in the rhizosphere
soil. The combined AM inoculation of plants and soil application of surfactant may have potential
as a biotechnological approach for the decontamination of soil polluted with DDT. (C) 2007
Elsevier Ltd. All rights reserved. |