| 夏季梅花品种耐热性生理生化指标研究 |
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| 引用本文： | 刘德良,赖万年.夏季梅花品种耐热性生理生化指标研究[J].北方园艺,2012(2):57-61. |
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| 作者姓名： | 刘德良 赖万年 |
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| 作者单位： | 嘉应学院生命科学学院,广东梅州,514015 |
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| 基金项目： | 广东省普通高校人文社会科学省市共建重点研究招标课资助项目 |
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| 摘 要： | 分别于2010年5、7、9月采集正常生长5个梅花品种的叶片,研究了夏季高温对梅花酶活性、膜热稳定性和热稳定性蛋白的影响。结果表明:桃红宫粉、碗形宫粉抵抗夏季高温的能力较强,其次是美人梅,而江南朱砂和台阁朱砂则相对较弱。从叶绿素含量看,5～9月间夏季高温对梅花叶绿素有不同程度的降解作用,5个梅花品种中,桃红宫粉叶绿素含量变化幅度相对较小,而美人梅叶绿素含量变化幅度相对较大;从酶活性看,各品种的丙二醛(MDA)含量基本呈现上升趋势,唯独美人梅呈先升后降趋势;各品种的超氧化物歧化酶(SOD)活性均呈现先下降后上升的趋势,而抗氧化物酶(POD)活性总体呈下降趋势;从膜的热稳定性和热稳定性蛋白看,各品种的电导率基本呈现先上升后下降的趋势;各个品种的热稳定性蛋白的含量基本呈现下降趋势。
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| 关 键 词： | 夏季高温 梅花 耐热性 生理生化指标 |
Research on Physio-biochemistry Indexes of Heat Resistant of Prunus mume in Summer |
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| LIU De-liang
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LAI Wan-nian.Research on Physio-biochemistry Indexes of Heat Resistant of Prunus mume in Summer[J].Northern Horticulture,2012(2):57-61. |
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| Authors: | LIU De-liang LAI Wan-nian |
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| Institution: | (School of Life Sciences,Jiaying University,Meizhou,Guangdong 514015) |
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| Abstract: | Enzyme activity,membrane thermostability and thermal stability albumen were studied by collecting leafes of 5 varieties of Prunus mume in May,July and September,2010.The results showed that Prunus mume ’Taohong Gongfen’ and Prunus mume ’Wanxing Gongfen’ had stronger thermal resistance ability during the high temperature in summer,secondly was Prunus mume ’Meiren Mei’,while Prunus mume ’Jiangnan Zhusha’and Prunus mume ’Taige Zhusha’was relatively weaker.Chlorophyll content of different varieties of Prunus mume were inordinately degradated during the high temperature in summer,of which amplitude of chlorophyll content of Prunus mume ’Taohong Gongfen’ were relatively small,and that of Prunus mume ’Meiren Mei’were relatively large;Malonyl dialdehyde(MDA) activity of 5 varieties of Prunus mume dropped but Prunus mume ’Meiren Mei’ rised at first and lowered later,superoxide dismutase(SOD) activity lowered at first and rised later,and peroxidase(POD) activities decreased on the whole;Conductivity of membrane thermostability(thermal stability) increased and then decreased,and thermal stability albumen content basically decreased. |
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| Keywords: | high temperature in summer Prunus mume thermal resistance ability physio-biochemistry index |
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