Journal Article10.1080/01904167.2012.631668
Subcellular and molecular distribution of cadmium in two rice genotypes with different levels of cadmium accumulation
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TL;DR: The Cd concentrations in the fractions from the roots of the high Cd-accumulating ‘Zhenguiai’ were noticeably higher than those of ‘Guangyuanzhan No. 3’, which possibly resulted in the latter cultivar having a lower Cd mobility in the roots and less Cd translocation from the Roots to the aboveground parts.
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Abstract: The chemical form and subcellular and molecular distribution of cadmium (Cd) in the roots and leaves was investigated in two rice genotypes: the low Cd-accumulating ‘‘Guangyuanzhan No 3’, and the high Cd-accumulating ‘‘Zhenguiai’’ Elevated Cd level in the medium caused a significant increase in Cd concentration in all parts of the roots and leaves The soluble fractions in leaves and roots of ‘Zhenguiai’ contained a higher proportion of the Cd than those in ‘Guangyuanzhan No 3’ Furthermore, ‘Zhenguiai’ had a higher proportion of de-ionized water and 80% ethanol-extractable Cd, which is the most mobile Cd among its various chemical forms Following gel filtration of the soluble fraction of leaf and root extracts of both genotypes, a compound with a molecular weight of ∼3 kDa, probably comprising phytochelatins (PCs), was the major Cd-binding component The Cd concentrations in the fractions from the roots of ‘Zhenguiai’ were noticeably higher than those of ‘Guangyuanzhan No 3’, which possibly resulted
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Citations
Subcellular distribution and chemical forms of cadmium in two hot pepper cultivars differing in cadmium accumulation.
Junliang Xin,Baifei Huang +1 more
TL;DR: A greenhouse experiment was conducted to compare the subcellular distribution and chemical forms of cadmium (Cd) in roots, stems, leaves, and fruits between a low-Cd cultivar (Yeshengchaotianjiao, YCT) and a high-CD cultivar of hot pepper (Jinfuzaohuangjiao), and found YCT had significantly lower Cd concentrations in the sub cellular fractions than JFZ.
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Does arbuscular mycorrhizal fungus affect cadmium uptake and chemical forms in rice at different growth stages
Na Luo,Xing Li,Ao Yu Chen,Li Jun Zhang,Hai-Ming Zhao,Lei Xiang,Quan-Ying Cai,Ce Hui Mo,Ming Hung Wong,Hui Li +9 more
TL;DR: It is indicated that flowering and ripening stages were important periods for AMF to limit the grain Cd concentrations in rice, when grown in Cd-contaminated soil.
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Comparison of cadmium absorption, translocation, subcellular distribution and chemical forms between two radish cultivars (Raphanus sativus L.)
TL;DR: Results indicate that the Cd in H4 is more active than L19, which could be responsible for the sensitivity of H4 to Cd damage.
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Comparisons in subcellular and biochemical behaviors of cadmium between low-Cd and high-Cd accumulation cultivars of pakchoi ( Brassica chinensis L.)
TL;DR: Cd in the form of pectate/protein complexes played a decisive role in Cd translocation from root to shoot, which might be one of the mechanisms that led to the differences in shoot Cd accumulation between the two types of cultivars.
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Cadmium adsorption, chelation and compartmentalization limit root-to-shoot translocation of cadmium in rice ( Oryza sativa L.)
TL;DR: Taken as a whole, the results presented in this study revealed that Cd chelation, compartmentalization and adsorption contribute to the Cd retention in roots.
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References
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