Subcellular distribution and chemical forms of cadmium in two hot pepper cultivars differing in cadmium accumulation.
Subcellular distribution and chemical forms of cadmium in two hot pepper cultivars differing in cadmium accumulation.
复制标题
DOI：
10.1021/jf4044524
复制
发表时间：
2014-01
影响因子：
6.1
通讯作者：
J. Xin;B. Huang
中科院分区：
文献类型：
--
作者：
J. Xin;B. Huang
以低镉和高镉辣椒品种“叶盛朝天椒”（YCT）和“金富早黄椒”（JFZ）为材料，采用温室盆栽试验，比较了镉在辣椒根、茎、叶和果实中的亚细胞分布和化学形态。根的亚细胞组分中的Cd浓度，并在根中的所有化学形式，分别为1.85-4.88-和1.84-4.90倍，在YCT比JFZ高。与JFZ相比，YCT在茎和叶的亚细胞组分中的Cd含量显著降低（1.10-2.42倍），在茎和叶中几乎所有化学形态中的Cd含量显著降低（1.17-2.97倍）。在果实中，YCT处理的细胞壁和可溶性组分中Cd含量显著低于JFZ处理的1.18-2.24倍，化学形态Cd含量显著低于JFZ处理的1.36-2.08倍。
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 (Jinfuzaohuangjiao, JFZ) of hot pepper (Capsicum annuum L.). The Cd concentrations in the root's subcellular fractions, and in all chemical forms in roots, were 1.85-4.88- and 1.84-4.90-fold higher, respectively, in YCT than in JFZ. Compared with JFZ, YCT had significantly lower Cd concentrations in the subcellular fractions (1.10-2.42-fold) of stems and leaves and in almost all chemical forms (1.17-2.97-fold) in the stems and leaves. Also, in fruits, the concentrations of Cd in the cell wall and soluble fractions were 1.18-2.24-fold significantly lower in YCT than in JFZ, and there were lower Cd concentrations (1.36-2.08-fold) in the chemical forms in YCT than in JFZ.