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生态学杂志 ›› 2011, Vol. 30 ›› Issue (11): 2478-2482.

• 研究报告 • 上一篇    下一篇

土壤镉含量对高粱属植物生理生化特性的影响

刘大林,王秀萍,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:2011-11-08 发布日期:2011-11-08

Effects of cadmium stress on the physiological and biochemical indices of Sorghum plants.

LIU Da-lin, WANG Xiu-ping, 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:2011-11-08 Published:2011-11-08

摘要: 通过盆栽模拟试验研究了土壤镉(Cd)含量对一年生高粱属植物(甜高粱、高丹草和苏丹草)根系活力、叶片脯氨酸含量和细胞膜透性等生理生化指标的影响。结果表明,土壤Cd含量>25 mg·kg-1时,3种高粱属植物根系活力均显著下降(P<0.05);3种高粱属植物叶片中脯氨酸的含量在各浓度处理下均显著增加(P<0.05);Cd胁迫影响了3种高粱属植物叶片和根系的细胞膜通透性,表现为不同程度的增加。

关键词: 空间邻接特征分析, 绿洲, 生态安全评价, 金塔县

Abstract: Taking the annual Sorghum plants (Sorghum bicolor (L.) Moench. cv. Hunnigreen, Sorghum bicolor × S. sudanense cv. Everlush, and Sorghum sudanense (Piper) Stapf cv. Xinjiang) as test materials, a pot experiment was conducted to study their root vitality, leaf proline content, and leaf- and root cell membrane permeability under the stress of different concentration soil cadmium (Cd). When the soil Cd concentration was higher than 25 mg·kg-1, the root vitality of the Sorghum plants decreased significantly (P<0.05), and in all treatments with Cd, the leaf proline content had a significant increase (P<0.05), and the leaf- and root cell membrane permeability increased to some extent.

Key words: Spatial neighboring characteristics, Oasis, Ecological security, Jinta County