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Position: Home > Articles > The Effect of NaCl Stress on the Ion Absorbtion of Manilkara roxburghiana(Wight)Dubard Chinese Journal of Tropical Crops 2013,34 (9) 1646-1649

NaCl胁迫对古巴牛乳树矿质离子吸收的影响

作  者:
刘育梅;宋志瑜;卢昌义
单  位:
厦门大学环境与生态学院;福建省亚热带植物研究所;厦门华侨亚热带植物引种园
关键词:
古巴牛乳树;离子效应;抗性方式
摘  要:
为了研究古巴牛乳树在NaCl胁迫下的离子效应及抗性方式,本试验测定了古巴牛乳树根、枝条、叶在NaCl胁迫下Cl-、Na+、K+、Ca2+的含量及分布特点。结果表明:古巴牛乳树根、枝条、叶的Cl-、Na+、Ca2+含量随处理浓度的提高而增加,K+、K+/Na+随处理浓度升高而降低;在8‰处理浓度时,根、枝条、叶中的Cl-含量分别为对照的7.86、11.82、16.53倍,Na+含量分别为对照的3.36、3.04、4.40倍,K+/Na+分别为0.17、0.25、0.16;相同处理浓度下,Cl-、K+、Ca2+含量高低顺序均为:根<枝条<叶,Na+含量高低顺序为:枝条<根<叶;叶中的Cl-、Na+、K+、Ca2+等4种离子含量均比根、枝条高。说明古巴牛乳树吸收Cl-、Na+、K+、Ca2+后,较大部分的将4种离子输送至叶片中,推测其抗性方式为耐盐性。
译  名:
The Effect of NaCl Stress on the Ion Absorbtion of Manilkara roxburghiana(Wight)Dubard
作  者:
LIU Yumei;SONG Zhiyu;LU Changyi;Xiamen Overseas Chinese Subtropical Plant Introduction Garden;Fujian Institute of Subtropical Botany;College of the Environment ﹠ Ecology,Xiamen University;
关键词:
M.roxburghiana;;Ion absorbtion;;Mode of resistance
摘  要:
In order to study the ion response and mode of salinity resistance of M. roxburghiana,the contents and distribution of 4 kinds of ions(Cl-,Na+,K+,Ca2+)in roots,branches,leaves under NaCl stress were assayed. The results showed that Cl-,Na+,Ca2+ contents in M. roxburghiana roots,branches,leaves raised with the rising NaCl concentration,while K+content and the ratio of K+/Na+dropped. The Cl-content in roots,branches,leaves was respectively 7.86,11.82,16.53 times higher than that in the control under 8‰ NaCl and Na+content was respectively 3.36 times,3.04 times,4.40 times. The K+/Na+ratio in roots,branches,leaves was respectively 0.17,0.25,0.16. The Cl-,K+,Ca2+ contents followed the order: roots

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