| 玉米幼苗对NaCl胁迫的生理响应和耐受阈值分析 |
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| 引用本文： | 张欢欢,马东方,柏新富,朱建军.玉米幼苗对NaCl胁迫的生理响应和耐受阈值分析[J].烟台师范学院学报(自然科学版),2013(4):324-329. |
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| 作者姓名： | 张欢欢 马东方 柏新富 朱建军 |
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| 作者单位： | 鲁东大学生命科学学院,山东烟台264039 |
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| 基金项目： | 山东省自然科学基金（ZR2012CM007）;山东省高等学校科技计划（J09LC06） |
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| 摘 要： | 以水培华农5号玉米（Zea mays L.var Huanong 5）幼苗为材料,综合分析了NaCl胁迫条件下幼苗的生理反应变化及其不同组织和生理过程的胁迫耐受阈值.结果表明：玉米叶片对NaCl胁迫最为敏感,耐受阈值约为150 mmol/L,且主要影响因素是气孔限制,非气孔限制因素对NaCl耐受性较强.PSⅡ的耐盐阈值在200～300 mmol/L之间.
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| 关 键 词： | 盐胁迫 玉米 光合作用 根透性 耐盐阈值 |
An Analysis on the Responsiveness and the Tolerant Threshold of Maize Seedlings to NaCl Stress |
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| ZHANG Huan-huan,MA Dong-fang,BAI Xin-fu,ZHU Jian-jun.An Analysis on the Responsiveness and the Tolerant Threshold of Maize Seedlings to NaCl Stress[J].Yantai Teachers University journal(Natural Science Edition),2013(4):324-329. |
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| Authors: | ZHANG Huan-huan MA Dong-fang BAI Xin-fu ZHU Jian-jun |
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| Institution: | ( School of Life Sciences, Ludong University, Yantai 264039, China) |
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| Abstract: | Using the hydroponically cultivated maize （Zea plant, the changes in physiological responses of maize mays L. var Huanong 5 ） seedlings as the model seedlings to salt stress and the physiological threshold of the different tissues and physiological process to salt stress were comprehensively analyzed. The results indicated that the leaf was most sensitive to NaCl stress and the tolerance threshold appeared at concentration of 150 mmol/L NaCl. The main influencing factor is stomatal limitation, but no stomatal limitation has higher tolerance to salt stress. PS 11 tolerant threshold to salt stress is between 200 -300 mmol/L. |
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| Keywords: | salt stress maize photosynthesis root permeability threshold of salt resistance |
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