| 生理生化指标证实8℃为白银豆幼苗的临界生长低温 |
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| 引用本文： | 王长春,张玉梅,杨玲,胡海涛.生理生化指标证实8℃为白银豆幼苗的临界生长低温[J].浙江师范大学学报(自然科学版),2013,36(1):17-21. |
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| 作者姓名： | 王长春 张玉梅 杨玲 胡海涛 |
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| 作者单位： | 浙江师范大学化学与生命科学学院,浙江金华,321004 |
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| 基金项目： | 浙江省自然科学基金资助项目 |
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| 摘 要： | 温州白银豆起源于热带美洲,对低温敏感,在浙江地区经常遭受倒春寒.笔者曾借助电导率法基于Arrhenius图预估白银豆幼苗生长临界低温为8℃.检测了白银豆幼苗在8℃低温胁迫下叶绿素和丙二醛的含量、光系统Ⅱ的最大光化学效率(Fv/Fm)、超氧化物歧化酶和过氧化物酶的活性的24 h动态变化.结果表明,8℃作为白银豆幼苗的临界生长低温是合理的.
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| 关 键 词： | 白银豆 临界生长低温 叶绿素 抗氧化酶 |
Physilogical and biochemical changes confirmed that 8 ℃ was the critical chilling temperature for lima bean seedlings |
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| WANG Changchun
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ZHANG Yumei
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YANG Ling
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HU Haitao.Physilogical and biochemical changes confirmed that 8 ℃ was the critical chilling temperature for lima bean seedlings[J].Journal of Zhejiang Normal University Natural Sciences,2013,36(1):17-21. |
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| Authors: | WANG Changchun ZHANG Yumei YANG Ling HU Haitao |
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| Institution: | ( College of Chemistry and Life Science, Zhejiang Normal University, Jinhua Zhejiang 321004, China) |
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| Abstract: | Lima bean plants （Phaseolus lunatus L ） originated from tropical zone in the belong to a chilling-susceptible species. The seedlings grown in Zhejiang often suffered late spring. A critical chilling temperature 8℃ was estimated according to Arrhenius plot northern Andes and temperature drop in of relative electrical conductivity. Dynamic changes of chlorophyll and malondialdehyde content, Fv/Fm, superoxide dismutase and peroxidase activity under 8 ℃ stress for 24 h were investigated and confirmed that 8℃ was the critical chilling temperature for lima bean seedlings. |
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| Keywords: | lima bean critical chilling temperature chlorophyll antioxidant enzyme |
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