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生态学杂志 ›› 2011, Vol. 30 ›› Issue (06): 1217-1221.

• 研究报告 • 上一篇    下一篇

高粱属植物对土壤镉吸收及亚细胞的分配

刘大林,胡楷崎,刘伟国,张树攀,赵国琦   

  1. 扬州大学动物科学与技术学院, 江苏扬州 225009
  • 出版日期:2011-06-08 发布日期:2011-06-08

Accumulation of soil cadmium and subcellular distribution in Sorghum species.

LIU Da-lin, HU Kai-qi, LIU Wei-guo, ZHANG Shu-pan, ZHAO Guo-qi**   

  1. College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
  • Online:2011-06-08 Published:2011-06-08

摘要: 通过盆栽模拟试验研究了3种高粱属植物(甜高粱、高丹草和苏丹草)对土壤Cd的富集效应及其亚细胞的分配。结果表明:Cd在3种高粱属植物不同部位的富集量随着Cd处理浓度的增加而增加,生育期内3种高粱属植物根系中Cd的富集量大于茎鞘和叶片中的富集量;高丹草对Cd的富集量高,甜高梁次之,苏丹草最低;Cd在高粱属植物叶片、茎鞘和根系中各亚细胞组分中的分布相似表现为细胞壁>可溶性部分>细胞核、叶绿体组分>线粒体。

关键词: 湿地生态系统健康, 时空尺度, 健康指标

Abstract: The accumulation of soil cadmium (Cd) and subcellular distribution in three Sorghum plants (Sorghum bicolor (L.) Moench. cv. Hunnigreen, Sorghum bicolor × S. sudanense cv. Everlush and Sorghum sudanense (Piper) Stapf cv. Xinjiang) were studied in this paper. The Cd content in the different parts of the three Sorghum species was positively correlated with the concentration of Cd. The Cd accumulated in the roots of the three Sorghum species was higher than in stems and leaves.The acumulate ability to Cd were as follows: S. bicolor×S. sudanense > S. sudanense > S. bicolor.The subcellular distribution of Cd in leaves, stems and roots of the three Sorghum species were as follows: cell wall > soluble part > cell nucleus, chloroplast components > mitochondria.

Key words: Wetland ecosystem health, Temporal-spatial scale, Health indicator