| 水分胁迫下玉米叶片光合的活性氧限制 |
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| 引用本文： | 杨德光,沈秀瑛; 赵天宏; 马秀芳.水分胁迫下玉米叶片光合的活性氧限制[J].玉米科学,2000,8(3):059-061. |
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| 作者姓名： | 杨德光 沈秀瑛; 赵天宏; 马秀芳 |
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| 作者单位： | 1. 中国人民解放军军需大学农学农机系,长春,130062
2. 沈阳农业大学农学系,沈阳,110161 |
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| 基金项目： | 本研究为国家“九五”期间农业部重点课题。 |
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| 摘 要： | 玉米植株叶片在水分胁迫下，活性氧代谢平衡失调。随着胁迫强度的增加，O-2和H2O2大量产生，导致叶绿素氧化破坏。光合受抑在中度至重度胁迫时，非气孔因素中活性氧伤害起主导作用。抗旱杂交种抵御活性氧伤害的能力强于干旱敏感杂交种。
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| 关 键 词： | 玉米 活性氧 光合作用 |
| 收稿时间： | 1999/12/17 0:00:00 |
The Photosynthetic Active Oxygen's Limitation of Maize Leaves Under Water stress |
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| YANG De-guang and SHEN Xiu-ying,ZHAO Tian-hong,MA Xiu-fang.The Photosynthetic Active Oxygen''s Limitation of Maize Leaves Under Water stress[J].Journal of Maize Sciences,2000,8(3):059-061. |
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| Authors: | YANG De-guang and SHEN Xiu-ying ZHAO Tian-hong MA Xiu-fang |
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| Abstract: | The changes of chlorophyll(chl) contents,photosynthetic rate,O2 production and H202 contents in maize (Zea mays L.) leaves under water stress were investigated to explore the relationship between photosynthetic timitation and active oxygen effect.Under water Stress,active Oxygen metabolic balance in corn leaves was broken down and chl degradation was accompanied by the increase of O2 production rate and H202 contents;Under severe water stress,active oxygen damage effect was one of the main factors affecting the photosynthesis of leaves.The results also showed that the drought-resistant hybrid had stronger tolerant ability to oxidative injury than the drought-susceptible hybrid. |
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| Keywords: | Zea mays Active oxygen photosynthesis |
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