Effects of Choline Chloride on Antioxidative Metabolism and Catalpol Content of Rehmannia glutinosa under Drought Stress

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- Effects of Choline Chloride on Antioxidative Metabolism and Catalpol Content of Rehmannia glutinosa under Drought Stress
- Issue 4, Pages: 159-163(2007)
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- Published：2007
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Effects of Choline Chloride on Antioxidative Metabolism and Catalpol Content of Rehmannia glutinosa under Drought Stress[J]. 2007, (4): 159-163.
DOI：

Effects of Choline Chloride on Antioxidative Metabolism and Catalpol Content of Rehmannia glutinosa under Drought Stress[J]. 2007, (4): 159-163. DOI：

用100

300

500 mg/L的氯化胆碱(CC)水溶液喷施干旱胁迫下的地黄叶片

研究了CC对干旱胁迫下地黄叶片抗氧化代谢、细胞膜稳定性、叶绿素荧光参数及块根中梓醇含量的影响.结果表明

叶面喷施CC有效调节了干旱胁迫下地黄叶片的抗氧化酶SOD、APX、CAT的活性

降低了叶片MDA的含量和相对电导率

减缓了叶绿素的降解.因此

使地黄叶片在干旱胁迫条件下维持较高的通过PSI的电子传递速率(Fv/Fo)、PS Ⅱ最大光化学效率(Fv/Fm)、实际光化学效率(ΦPS Ⅱ)和光化学猝灭系数(qP)

从而提高了干旱胁迫下地黄块根的产量和梓醇含量

其中以300 mg/L的CC浓度效果较好.

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