| 高温对高羊茅和狗牙根几个生理生化指标的影响 |
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| 引用本文： | 徐东生,孟志卿.高温对高羊茅和狗牙根几个生理生化指标的影响[J].江西农业学报,2007,19(8):67-68,71. |
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| 作者姓名： | 徐东生 孟志卿 |
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| 作者单位： | 孝感学院,作物病害监测和安全控制省重点实验室,湖北,孝感,432000 |
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| 摘 要： | 用40℃高温处理高羊茅和狗牙根,并以25℃为对照,比较高温胁迫下,高羊茅和狗牙根超氧物岐化酶、过氧化物酶、脯氨酸、丙二醛、电导率的差异,结果表明:25℃时上述5个指标差别小,40℃处理3h和24h后,高羊茅和狗牙根的SOD活性分别上升42%和50%,POD活性分别上升114%和287%,PRO含量分别上升800%和1200%,MDA含量分别上升101%和94%,REC分别上升170%和107%。说明高温胁迫下,高羊茅细胞膜脂过氧化严重,生理功能紊乱,抗性下降,这是高羊茅越夏困难、易发病的主要原因。
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| 关 键 词： | 高温 高羊茅 狗牙根 越夏 超氧物岐化酶 过氧化物酶 丙二醛 |
| 文章编号： | 1001-8581（2007）08-0067-02 |
| 收稿时间： | 2007-05-11 |
| 修稿时间： | 2007-05-11 |
Effects of High Temperature Stress on Several Physiochemical Indexes of Festuca arundinacea Schreb and Cynodon dactylon |
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| XU Dong-sheng,MENG Zhi-qing.Effects of High Temperature Stress on Several Physiochemical Indexes of Festuca arundinacea Schreb and Cynodon dactylon[J].Acta Agriculturae Jiangxi,2007,19(8):67-68,71. |
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| Authors: | XU Dong-sheng MENG Zhi-qing |
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| Institution: | Crop Disease Monitoring and Safe Control Laboratory of Hubei Province, Xiaogan University, Xiaogan 432000 ,China |
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| Abstract: | Compared with the temperature of 25℃,the difference of the enzyme activity of SOD and POD,contents of PRO and MDA and REC of Festuca arundinacea Schreb and Cynodon dactylon at the temperature of 40℃ had been studied.The results showed that the 5 indexes above had less difference at the temperature of 25℃;after 3h' and 24h' treatment at the temperature of 40℃,the activities of SOD of Fesruca arundinacea Schreb and Cynodon dactylon were risen by 42% and 50%,respectively;the activities of POD were risen by 114% and 287% respectively;content of PRO were risen by 800% and 1200%,MDA content were risen by 101% and 94%,and REC by 170% and 107% respectively.The experiment showed that Fesruca arundinacea Schreb was difficult in oversummering and was induced diseases because of serious lipid peroxidation,physiological functional disorder and decrease of resistance at high temperature. |
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| Keywords: | High temperature Festuca arundinacea Schreb Cynodon dactylon Oversummering SOD POD PRO MDA |
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