| 不同水平腐胺对巴西蕉幼苗抗旱生理的影响 |
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| 引用本文： | 王晶晶,李绍鹏,李新国,吴凡,李茂富,黄芳,何娟.不同水平腐胺对巴西蕉幼苗抗旱生理的影响[J].热带作物学报,2011,32(4):613-617. |
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| 作者姓名： | 王晶晶 李绍鹏 李新国 吴凡 李茂富 黄芳 何娟 |
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| 作者单位： | 海南大学热带作物种质资源保护与开发利用教育部重点实验室海南大学园艺园林学院 海南儋州571737 |
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| 基金项目： | 海南省教育厅高等学校科研项目(Hjkj2009-26); 海南省自然科学基金(807034) |
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| 摘 要： | 用0.00、1.00、1.25、1.50、1.75 mmol/L腐胺(Put)喷施巴西蕉幼苗叶片,研究干旱胁迫后其相关生理生化指标的变化。结果表明,在干旱胁迫下,适宜浓度的外源Put预处理能显著增加巴西蕉幼苗叶片的相对含水量,降低相对电导率,提高脯氨酸、可溶性蛋白质的含量及SOD、POD的活性,降低O.-2产生的速率,减少MDA的积累。由此说明适宜浓度的外源Put预处理能提高巴西蕉幼苗抗旱性,以1.25 mmol/L Put预处理效应最佳。
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| 关 键 词： | 巴西蕉 腐胺 抗旱生理 |
Effects of Putrescine at Different Levels on the Drought Resistance of Brazil Banana Plantlets |
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| WANG Jingjing,LI Shaopeng,LI Xinguo,WU Fan,LI Maofu,HUANG Fang and HE Juan.Effects of Putrescine at Different Levels on the Drought Resistance of Brazil Banana Plantlets[J].Chinese Journal of Tropical Crops,2011,32(4):613-617. |
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| Authors: | WANG Jingjing LI Shaopeng LI Xinguo WU Fan LI Maofu HUANG Fang and HE Juan |
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| Institution: | WANG Jingjing,LI Shaopeng,LI Xinguo,WU Fan,LI Maofu,HUANG Fang,HE Juan Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources,Hainan University / Ministry of Education,Danzhou,Hainan 571737,China College of Horticulture and Landscape Architecture,Hainan University,China |
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| Abstract: | Foliar spraying of Brazil banana plantlets with 0.00,1.00,1.25,1.50 and 1.75 mmol/L putrescine and then treated under drought stress,some relative physiological and biochemical indices were measured to study the changes.The results showed that the pretreatment with suitable concentrations of exogenous putrescine increased the relative water content of the Brazil banana plantlet leaves,reduced the relative conductivity,improved the contents of proline and soluble proteins,as well as the activity of SOD and P... |
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| Keywords: | Brazil banana Putrescine Drought resistance |
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