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Effects of phosphorus supplied in soil on subcellular distribution and chemical forms of cadmium in two Chinese flowering cabbage (Brassica parachinensis L.) cultivars differing in cadmium accumulation.
Food Chem Toxicol. 2011 Sep; 49(9):2260-7.FC

Abstract

Differences in the subcellular distribution and chemical speciation of Cd between two Chinese flowering cabbage (Brassica parachinensis L.) cultivars, Lubao70 (LB70, low-Cd cultivar) and ChixinNO.4 (CX4, high-Cd cultivar) were investigated under various soil Cd and P treatments. Subcellular fractionation of Cd-containing tissues showed that a higher proportion of Cd was bound to the cell wall fraction of LB70 than that of CX4, indicating that Cd compartment functioned better in LB70. Compared to CX4, LB70 had lower proportions of Cd in inorganic form and water-soluble form, but higher proportions of Cd in proteins/pectates integrated form, implying that the low Cd accumulation in LB70 is associated with the low in vivo mobility of Cd. In both cultivars, shoot and root Cd concentration and translocation of Cd from the roots to the shoots obviously decreased with increasing soil P level. It was found that phosphorus (P) played important roles in Cd uptake and translocation via the processes involved in bonding Cd to the cell wall fraction and forming Cd-phosphate complexes. It is suggested that use of low-Cd cultivars in conjunction with P supply is a much useful way to reduce the pollution risk of Cd in the food chain.

Authors+Show Affiliations

State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, No. 135, XinGangXi Road, Guangzhou 510275, China. qiuqiuwin2005@126.comNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21693161

Citation

Qiu, Qiu, et al. "Effects of Phosphorus Supplied in Soil On Subcellular Distribution and Chemical Forms of Cadmium in Two Chinese Flowering Cabbage (Brassica Parachinensis L.) Cultivars Differing in Cadmium Accumulation." Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association, vol. 49, no. 9, 2011, pp. 2260-7.
Qiu Q, Wang Y, Yang Z, et al. Effects of phosphorus supplied in soil on subcellular distribution and chemical forms of cadmium in two Chinese flowering cabbage (Brassica parachinensis L.) cultivars differing in cadmium accumulation. Food Chem Toxicol. 2011;49(9):2260-7.
Qiu, Q., Wang, Y., Yang, Z., & Yuan, J. (2011). Effects of phosphorus supplied in soil on subcellular distribution and chemical forms of cadmium in two Chinese flowering cabbage (Brassica parachinensis L.) cultivars differing in cadmium accumulation. Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association, 49(9), 2260-7. https://doi.org/10.1016/j.fct.2011.06.024
Qiu Q, et al. Effects of Phosphorus Supplied in Soil On Subcellular Distribution and Chemical Forms of Cadmium in Two Chinese Flowering Cabbage (Brassica Parachinensis L.) Cultivars Differing in Cadmium Accumulation. Food Chem Toxicol. 2011;49(9):2260-7. PubMed PMID: 21693161.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of phosphorus supplied in soil on subcellular distribution and chemical forms of cadmium in two Chinese flowering cabbage (Brassica parachinensis L.) cultivars differing in cadmium accumulation. AU - Qiu,Qiu, AU - Wang,Yutao, AU - Yang,Zhongyi, AU - Yuan,Jiangang, Y1 - 2011/06/13/ PY - 2011/01/03/received PY - 2011/06/04/revised PY - 2011/06/08/accepted PY - 2011/6/23/entrez PY - 2011/6/23/pubmed PY - 2011/12/13/medline SP - 2260 EP - 7 JF - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association JO - Food Chem Toxicol VL - 49 IS - 9 N2 - Differences in the subcellular distribution and chemical speciation of Cd between two Chinese flowering cabbage (Brassica parachinensis L.) cultivars, Lubao70 (LB70, low-Cd cultivar) and ChixinNO.4 (CX4, high-Cd cultivar) were investigated under various soil Cd and P treatments. Subcellular fractionation of Cd-containing tissues showed that a higher proportion of Cd was bound to the cell wall fraction of LB70 than that of CX4, indicating that Cd compartment functioned better in LB70. Compared to CX4, LB70 had lower proportions of Cd in inorganic form and water-soluble form, but higher proportions of Cd in proteins/pectates integrated form, implying that the low Cd accumulation in LB70 is associated with the low in vivo mobility of Cd. In both cultivars, shoot and root Cd concentration and translocation of Cd from the roots to the shoots obviously decreased with increasing soil P level. It was found that phosphorus (P) played important roles in Cd uptake and translocation via the processes involved in bonding Cd to the cell wall fraction and forming Cd-phosphate complexes. It is suggested that use of low-Cd cultivars in conjunction with P supply is a much useful way to reduce the pollution risk of Cd in the food chain. SN - 1873-6351 UR - https://www.unboundmedicine.com/medline/citation/21693161/Effects_of_phosphorus_supplied_in_soil_on_subcellular_distribution_and_chemical_forms_of_cadmium_in_two_Chinese_flowering_cabbage__Brassica_parachinensis_L___cultivars_differing_in_cadmium_accumulation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0278-6915(11)00268-7 DB - PRIME DP - Unbound Medicine ER -