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当前位置: 首页 > 文章 > 钾离子对盐碱胁迫下海滨锦葵生长、钠离子吸收及其细胞分布特征的影响 河南科技学院学报(自然科学版) 2019 (3) 1-8
Position: Home > Articles > 钾离子对盐碱胁迫下海滨锦葵生长、钠离子吸收及其细胞分布特征的影响 Journal of Henan Institute of Science and Technology(Natural Science Edition) 2019 (3) 1-8

钾离子对盐碱胁迫下海滨锦葵生长、钠离子吸收及其细胞分布特征的影响

作  者：
周建;张轩
单  位：
河南科技学院园艺园林学院
关键词：
盐碱胁迫;海滨锦葵;Na+;K+;拮抗;细胞分布
摘  要：
为探索外源K~+对盐碱胁迫下海滨锦葵Na~+吸收的影响,试验以海滨锦葵为研究对象,在盐碱条件下添加K~+,测定海滨锦葵植株株高、地径、干质量、组织Na~+含量及其细胞分布.结果表明:在盐碱胁迫下,添加外源K~+,增加组织Na~+含量,而海滨锦葵植株株高、地径、干质量基本受到抑制.此外,添加K~+后,在较低浓度盐碱下,植株地下部分Na~+由细胞质向细胞壁转移;在较高浓度盐碱胁迫植株中,其地上部分的Na~+由细胞壁转向细胞质中保存;其他部分Na~+分布相对比较稳定.
作  者：
ZHOU Jian;ZHANG Xuan;School of Horticulture and Landscape Architecture,Henan Institute of Science and Technology;
单  位：
ZHOU Jian%ZHANG Xuan%School of Horticulture and Landscape Architecture,Henan Institute of Science and Technology
关键词：
saline-alkali stress;;Kosteletzkya virginica,sodium ion;;potassium ion;;antagonism;;cell distribution
摘  要：
In order to explore effect of exogenous potassium ions on absorption of sodium ions in saline-alkali stressed Kosteletzkya virginica seedlings,these seedlings were taken as experimental materials in this research,NaCl was added in the mixed saline-alkali soil,and finally some indices including height,stem diameter,dry weight,Na~+ content and sub-cell distribution were measured in these treated K. virginica seedlings.The results showed that,under saline-alkali stress,exogenous potassium ions could increase the concentrations of sodium ions,and while,the height,stem diameter and dry weight of these seedlings were basically inhibited in this research.Additionally,after a K~+ addition,Na~+ showed a shift from cytoplasm to cell wall in K. virginica underground-part at a low saline-alkali concentration,and,when this concentration incresed,sodium ions transferred from the cell wall to the cytoplasm for preservation in K. virginica overground-part, and however,Na~+ distribution remained stable in other parts in this experiment.

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