Different responses of low grain-Cd-accumulating and high grain-Cd-accumulating rice cultivars to Cd stress

Plant Physiology and Biochemistry : PPB
Feijuan WangCheng Zhu

Abstract

Cadmium (Cd) is a major heavy metal pollutant which is highly toxic to plants and animals. The accumulation of Cd in rice grains is a major agricultural problem in regions with Cd pollution. A hydroponics experiment using low grain-Cd-accumulating rice (xiushui 11) and high grain-Cd-accumulating rice (xiushui 110) was carried out to characterize the different responses of rice cultivars to Cd stress. We found that xiushui 11 was more tolerant to Cd than xiushui 110, and xiushui 11 suffered less oxidative damage. Cell walls played an important role in limiting the amount of Cd that entered the protoplast, especially in xiushui 11. Cd stored in organelles as soluble fractions, leading to greater physiological stress of Cd detoxification. We found that Cd can disturb the ion homeostasis in rice roots because Cd(2+) and Ca(2+) may have a similar uptake route. Xiushui 11 had a faster root-to-shoot transport of Cd, and the expression level of OsPCR1 gene which was predicted related with Cd accumulation in rice was consist with the Cd transport of root-to-shoot in rice and maintain the greater Cd tolerance of xiushui 11. These results suggest there are different Cd detoxification and accumulation mechanisms in rice cultivars.

References

Sep 21, 2000·The Plant Journal : for Cell and Molecular Biology·B L OrvarR S Dhindsa
Jul 21, 2004·The Science of the Total Environment·T WatanabeM Ikeda
Feb 10, 2007·Annual Review of Plant Biology·Ian M MøllerAndreas Hansson
Oct 5, 2007·Journal of Environmental Sciences (China)·Jing ChenXue-bo Pan
Nov 27, 2007·The Science of the Total Environment·C A GrantR L Chaney
Sep 13, 2008·Archives of Environmental Contamination and Toxicology·Feijuan WangCheng Zhu
Nov 18, 2011·Proceedings of the National Academy of Sciences of the United States of America·Won-Yong SongYoungsook Lee
Dec 28, 2011·Journal of Experimental Botany·Xiangqiang KongWeijiang Li
Sep 29, 2012·Acta Biochimica Et Biophysica Sinica·Feijuan WangCheng Zhu
Nov 16, 2012·Plant Physiology·Sergi Munné-BoschChristine H Foyer
Feb 22, 2013·Plant Signaling & Behavior·Shuvasish ChoudhurySanjib Kumar Panda

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Citations

Mar 22, 2016·The Science of the Total Environment·Morteza YaqubiMahmood Sabouhi Sabouni
Oct 5, 2017·Bulletin of Environmental Contamination and Toxicology·Qiaoying ZengQiwei Li
Oct 11, 2017·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Jin Guo MengZhi Min Yang
Jun 10, 2017·Environmental Science and Pollution Research International·Kun LiFu Huang
Jun 26, 2020·Plants·Renata HolubekJagna Chmielowska-Bąk
Dec 2, 2020·The Science of the Total Environment·Babar HussainMuhammad Farooq
Feb 21, 2021·Journal of Hazardous Materials·Liang WangFenghua Zhao
Apr 23, 2021·Environmental Science and Pollution Research International·Li SongGuisheng Zhou
Jun 19, 2021·Environmental Science and Pollution Research International·Akwasi YeboahXuegui Yin
Aug 8, 2021·International Journal of Molecular Sciences·Wenli ZouGuoyou Ye
Feb 25, 2020·Ecotoxicology and Environmental Safety·Wolde TeferaShengke Tian

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