title: [Effect of phosphor on accumulation and chemical forms of cadmium, and physiological characterization in different varieties of Capsicum annuum L].
abstract: Pot experiments were carried out to investigate the influence of different Phosphor (P) levels (0, 0.3% and 0.5%) on the plant growth, activities of antioxidant enzymes, accumulation and chemical forms of cadmium (Cd) in Capsicum annuum L. when exposed to Cd (10 mg x kg(-1)). The results showed that dry weights of leaf, fruit, roots and total dry weights of plant, and concentration and accumulation of Cd significantly differed between two varieties of Capsicum annuum L. Dry weights of fruit and total plant of Chaotianjiao increased by P (0.3% and 0.5%), while that of Yanjiao425 was inhibited. Activities of catalase (CAT) were increased at first, and then reduced in the presence of P; Activities of superoxide dismutase (SOD) and peroxidase (POD) of Chaotianjiao increased with increasing levels of P, but activities of SOD and POD of Yanjiao425 decreased with increasing levels of P. Chemical forms of Cd in fruit of Capsicum annuum L. were in order of F(NaCl) > F(HAC) > F(E) > Fr > F(HC) > F(W). The total extractable Cd, ethanol-extractable Cd, hydrochloric acid-extractable Cd and residual Cd in fruit of Ynajiao425 obviously decreased in the presence of P compared to the control, while the total extractable Cd, water-extractable Cd, acetic acid-extractable Cd and residual Cd in fruit of Chaotianjiao increased. Cadmium accumulations of Capsicum annuum L. were in order of roots > stew > leaf > fruit. Cadmium accumulations in fruit and plant of Yanjiao425 were decreased by 47.7% and 58.5% , 5.5% and 13. 1% in the presence of 0.3% and 0.5% P when exposed to Cd, and Cd accumulations in fruit and plant of Chaotianjiao were decreased by 23.6% in the presence of 0.3% P.
authors: College of Resources and Environmental Sciences, Southwest University, Chongqing 400715, China. xiaojing103115@163.com
authors: Xiao-Jing
authors: XJ
authors: Zhang
authors: Ji-Zhen
authors: JZ
authors: Liu
authors: Wei-Hong
authors: WH
authors: Xu
authors: Gui-Qing
authors: GQ
authors: Chen
authors: Hui-Xian
authors: HX
authors: Wang
authors: Hai-Bo
authors: HB
authors: Zhang
authors: Gui-Qi
authors: GQ
authors: Han
authors: Hong-Jun
authors: HJ
authors: Zeng
authors: Chun-Tao
authors: CT
authors: Lan
authors: Zhi-Ting
authors: ZT
authors: Xiong
authors: Song-Qing
authors: SQ
authors: Wei
mesh_terms: D000042:Absorption; D002104:Cadmium / Q000037:antagonists & inhibitors* / Q000737:chemistry / Q000378:metabolism*; D002212:Capsicum / Q000378:metabolism / Q000502:physiology*; D010758:Phosphorus / Q000494:pharmacology*; D012989:Soil Pollutants / Q000037:antagonists & inhibitors* / Q000737:chemistry / Q000378:metabolism; D013045:Species Specificity
chemical_list: D012989:Soil Pollutants; D002104:Cadmium; D010758:Phosphorus