TY - JOUR
T1 - Effects of growth stage and cd chemical form on cd and zn accumulation in arabidopsis halleri ssp. Gemmifera
AU - Kudo, Hiroshi
AU - Inoue, Chihiro
AU - Sugawara, Kazuki
N1 - Funding Information:
Funding: This research was funded by Grant-in-Aid for Young Scientists (B): 17K12834; Grant-in-Aid for JSPS Fellows: 266414 and Grant-in-Aid for Scientific Research (A): 19H01158.
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/4
Y1 - 2021/4
N2 - Cadmium is a hazardous heavy metal and causes contamination globally. Phytoremedia-tion can potentially become a low-cost and eco-friendly technique for mitigating Cd contamination. Arabidopsis halleri ssp. gemmifera hyper-accumulates Cd and Zn, and may be used to remediate Cd-contaminated sites. However, few studies have focused on Cd accumulation by A. halleri ssp. gemmifera. Herein, we demonstrate the accumulation of Cd by A. halleri ssp. gemmifera. The biomass, Cd, and Zn concentration of the plant increased in the 103 days of experimentation. Cd concentration of soil significantly decreased compared to its initial concentration (≈10%). The material balance of Cd uptake by plant and Cd decrement from soil ranged from 63.3% to 83.7% in each growth stage. Analysis indicated that the water-eluted and exchangeable forms of Cd were stable during the experiment. However, Cd concentration extracted with 0.1 M HCl decreased (25% of initial), and this fraction was not bioavailable. The study exhibits the mass balance of Cd between plant uptake and decrement from the soil and the changes in the chemical form of Cd during stages of A. halleri ssp. gemmifera cultivation.
AB - Cadmium is a hazardous heavy metal and causes contamination globally. Phytoremedia-tion can potentially become a low-cost and eco-friendly technique for mitigating Cd contamination. Arabidopsis halleri ssp. gemmifera hyper-accumulates Cd and Zn, and may be used to remediate Cd-contaminated sites. However, few studies have focused on Cd accumulation by A. halleri ssp. gemmifera. Herein, we demonstrate the accumulation of Cd by A. halleri ssp. gemmifera. The biomass, Cd, and Zn concentration of the plant increased in the 103 days of experimentation. Cd concentration of soil significantly decreased compared to its initial concentration (≈10%). The material balance of Cd uptake by plant and Cd decrement from soil ranged from 63.3% to 83.7% in each growth stage. Analysis indicated that the water-eluted and exchangeable forms of Cd were stable during the experiment. However, Cd concentration extracted with 0.1 M HCl decreased (25% of initial), and this fraction was not bioavailable. The study exhibits the mass balance of Cd between plant uptake and decrement from the soil and the changes in the chemical form of Cd during stages of A. halleri ssp. gemmifera cultivation.
KW - Arabidopsis halleri ssp. gemmifera
KW - Cadmium
KW - Chemical form
KW - Heavy metal accumula-tion
KW - Phytoremediation
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U2 - 10.3390/ijerph18084214
DO - 10.3390/ijerph18084214
M3 - Article
C2 - 33923395
AN - SCOPUS:85104111930
VL - 18
JO - International Journal of Environmental Research and Public Health
JF - International Journal of Environmental Research and Public Health
SN - 1661-7827
IS - 8
M1 - 4214
ER -
