HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Related articles in JEQ Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via ISI Web of Science (34) Citing Articles via Google Scholar Google Scholar Articles by Grcman, H. Articles by Lestan, D. Search for Related Content PubMed PubMed Citation Articles by Grcman, H. Articles by Lestan, D. GeoRef GeoRef Citation Agricola Articles by Grcman, H. Articles by Lestan, D. Related Collections Heavy Metals Soil Pollution

Ethylenediaminedissuccinate as a New Chelate for Environmentally Safe Enhanced Lead Phytoextraction

H. Grman, D. Vodnik, . Velikonja-Bolta and D. Letan^*

Agronomy Dep., Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia

View larger version (28K): [in a new window]   Fig. 1. Concentrations of Pb, Cd, and Zn in leaves of Chinese cabbage grown on contaminated soil in response to different EDTA (black) and EDDS (white) addition: 3 mmol kg-1 single dose addition (3S), 5 mmol kg-1 single dose addition (5S), 5 mmol kg-1 weekly additions (5W), 10 mmol kg-1 single dose addition (10S), 10 mmol kg-1 weekly additions (10W), and control soil with no EDTA addition. Means of five replicates are presented; error bars represent standard deviation. Statistically different treatments according to the Tukey test are labeled with different letters.

View larger version (20K): [in a new window]   Fig. 2. The effects of 5 and 10 mmol kg-1 weekly additions of EDDS and EDTA on Pb, Zn, and Cd leaching from soil during the phytoextraction experiment. The means of five replicates are presented; error bars represent standard deviation.

View larger version (15K): [in a new window]   Fig. 3. Red clover shoot dry weight in response to 5 mmol kg-1 (5W) and 10 mmol kg-1 (10W) weekly additions of EDDS or EDTA and control soil with no chelate addition. Means of four replicates are presented; error bars represent standard error.

View larger version (21K): [in a new window]   Fig. 4. The structure of microbial groups (fungal, bacterial, and actinomycetes) determined as mol % of PLFAs in soil after 1 and 56 d of chelate addition in a single dose of 10 mmol kg-1 soil. Means of three replicates are presented; error bars represent standard deviation. Statistically different treatments according to the Tukey test are labeled with different letters.

View larger version (16K): [in a new window]   Fig. 5. Stress index (trans to cis PLFA ratio) of microbial populations in soil after 1 and 56 d of chelate addition in a single dose of 10 mmol kg-1 soil. Means of three replicates are presented; error bars represent standard deviation. Statistically different treatments according to the Tukey test are labeled with different letters.