| 张永福1,何田方2,牛燕芬1,彭声静1,莫丽玲1,杨雪1,陈宗国1.硝普钠对干旱胁迫下葡萄抗旱生理的影响[J].广东农业科学,2014,41(24):40-44 |
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硝普钠对干旱胁迫下葡萄抗旱生理的影响 |
| Effects of sodium nitroprusside on drought-resistancephysiology in grape under drought stress |
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| DOI： |
| 中文关键词: 葡萄,干旱胁迫 硝普钠 抗旱生理 聚乙二醇 |
| 英文关键词: grape drought stress sodium nitroprusside drought-resistance physiology polyethylene glycol |
| 基金项目:云南省教育厅科学研究基金（012Z097）；昆明
学院引进人才科研项目(YJL11030) |
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| 中文摘要: |
| 以玫瑰蜜葡萄为试材,以硝普钠(SNP)为NO 供体,通过无土栽培的方法在营养液中加入20% PEG-
6000 进行模拟干旱,研究SNP 对干旱胁迫下葡萄苗抗旱性生理的影响,探讨外源NO 缓解干旱胁迫对葡萄伤害的相
关机制.结果表明,在PEG-6000 模拟干旱胁迫的条件下,SNP 处理可使葡萄叶片的MDA 含量、超氧阴离子产生速
率、过氧化氢含量和相对电导率明显下降，而超氧化物歧化酶(SOD）和过氧化物酶)POD,活性明显提高,游离脯氨酸
和可溶性蛋白质等渗透调节物质含量也明显上升,叶片含水量的下降速率则明显减缓;SNP 处理还显著提高了干旱
胁迫后葡萄的根系活力并降低了根系MDA 含量. |
| 英文摘要: |
| Meiguimi grape was used as material, using SNP as NO donor, by soilless cultivation methods, and adding
20% PEG-6000 in nutrient solution simulated drought. The influences of SNP on drought-resistance physiology in grape
seedlings under drought stress, and the mechanism of exogenous NO alleviating the damage of drought stress on grape were
investigated. The results showed that under PEG-6000 simulation drought conditions, SNP treatment could make the MDA
content, production rate of superoxide anion radical, hydrogen peroxide content and relative electrical conductivity
decreased significantly, while the activities of SOD and POD increased in leaf; the osmotic adjustment substances contents
of free proline and soluble protein significantly increased in leaf, and water content decline rate was slow significantly. In
addition, SNP treatment also significantly made the root activity increased and the MDA content in root decreased after
drought stress. |
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