模拟酸雨胁迫下Ca2 对小白菜的调控作用的研究
DOI:
作者:
作者单位:

吉林大学环境与资源学院,吉林大学环境与资源学院,吉林大学环境与资源学院,吉林大学环境与资源学院,吉林大学环境与资源学院,吉林大学环境与资源学院,吉林大学环境与资源学院

作者简介:

通讯作者:

中图分类号:

Q945.78

基金项目:

“十二五”国家科技重大专项,项目代号:2012ZX07208


Ca2 Regulation Function of Brassica Chinensis L. under Simulated Acid Rain Stress
Author:
Affiliation:

College of Environment Resources, Jilin University,,,,,

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    通过大棚试验,研究了模拟酸雨胁迫下Ca2 对小白菜体内6种不同形态钙以及生理和营养品质指标的影响。结果表明,施加适宜浓度的Ca2 可以增加小白菜体内各形态钙的浓度,施加过高浓度钙的小白菜体内各形态钙含量相对较低,说明过高浓度的钙在一定程度上抑制了小白菜对钙的吸收。模拟酸雨胁迫下,小白菜体内的果胶酸钙和磷酸三钙浓度随施加Ca2 浓度的增大而增大,达到浓度峰值后下降,且在较强酸雨胁迫下增加程度更明显;小白菜体内总钙以及残渣态钙浓度增加,无机钙和水溶性钙浓度下降.随着Ca2 浓度增大,叶绿素和可溶性糖含量逐渐增大,说明外源Ca2 在一定程度上起到了抵抗酸雨的作用;相对于低浓度Ca2 ,高浓度Ca2 调控作用下的叶绿素和可溶性糖含量在强酸性酸雨与弱酸性酸雨胁迫下的差异更小,说明适当地提高的外源Ca2 浓度有助于缓解强酸性酸雨对小白菜造成的损害。果胶酸钙能够提高细胞壁刚性,维持细胞膜的稳定性是抵御酸雨的基本原理之一。

    Abstract:

    By greenhouse cultivation, the responses of 6 kinds of different forms of calcium amount in the body as well as physiological and nutritional quality indexes to different calcium concentrations were studied under the stress of simulated acid rain on brassica chinensis L. The results showed that appropriate concentration of Ca2 can increase the absorption of the different forms of calcium but high concentration decreased them, which signifies excessive calcium"s concentration causes inhibition of absorption. The concentration of pectic acid calcium and tricalcium phosphate promote along with the increasing of concentration of total calcium, after reaching the peak, it begin to decrease, and the trend increasing is more significant under stronger acid rain stress. And total calcium concentration and its residue state increase, yet Inorganic calcium and water soluble calcium decrease. The content of soluble sugar and chlorophyll increased along with the growth of Ca2 concentration, which indicates that Ca2 has the positive effect of the resistance to acid rain in some extent. After the regulation of higher Ca2 , the differences of soluble sugar and chlorophyll between under the stress of stronger acid rain and weaker were smaller, compared with the situation of lower Ca2 , which suggested that appropriately increase the exogenous Ca2 concentration will help to relieve the damage caused by stronger acid rain . Pectic acid calcium is able to enhance stiffness of cytoderm and maintain the stability of Cell membrane, which is one of fundamentals of protection against acid rain.

    参考文献
    相似文献
    引证文献
引用本文

房春生,佘彦玲,赵秀敏,等. 模拟酸雨胁迫下Ca2 对小白菜的调控作用的研究[J]. 科学技术与工程, 2014, 14(27): .
房春生,she yan ling,,et al. Ca2 Regulation Function of Brassica Chinensis L. under Simulated Acid Rain Stress[J]. Science Technology and Engineering,2014,14(27).

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2014-04-23
  • 最后修改日期:2014-05-16
  • 录用日期:2014-05-30
  • 在线发布日期: 2014-09-24
  • 出版日期:
×
律回春渐,新元肇启|《科学技术与工程》编辑部恭祝新岁!
亟待确认版面费归属稿件,敬请作者关注