| 代惠萍,冯佰利,高金锋,高小丽,王鹏科,柴岩.糜子叶片衰老与活性氧代谢研究[J].干旱地区农业研究,2008,(1):217~220 |
| 糜子叶片衰老与活性氧代谢研究 |
| Senescence and activate oxygen metabolism of leaf in Panicum miliaceum L． |
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| DOI：10.7606/j.issn.1000-7601.2008.01.40 |
| 中文关键词: 糜子 叶片衰老 活性氧代谢 |
| 英文关键词:Panicum miliaceum L. leaf senescence activiate oxygen metabolism |
| 基金项目:国家高技术研究发展计划(863计划)项目(2006AA100201)； 陕西省攻关项目(2006K01-G17-01)； 西北农林科技大学植物遗传育种专项(OSYZ017-1)资助 |
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| 中文摘要: |
| 以榆糜3号为试验材料,研究糜子叶片衰老与活性氧代谢特性。结果表明,随着植株衰老,不同叶位超氧化物歧化酶、过氧化氢酶、过氧化物酶等保护性酶活性呈由高到低的变化趋势,旗叶活性氧保护酶含量高且下降缓慢,丙二醛含量低且增长缓慢,在籽粒灌浆中后期表现更为明显。研究认为,在旱作农业生产中,延缓叶片衰老,对促进糜子籽粒充实,提高糜子产量和品质具有重要作用。 |
| 英文摘要: |
| This research aims to study Panicum miliaceum L.leaves activity and the aging characteristics of oxygen metabolism by using Yu-Mi 3 and the pot method.The results showed that SOD,CAT,POD activities of different leaves rose and then declined with plant ageing,the content of active oxygen protective enzyme of flag leaf was high and declined slowly,and the content of MDA was low and rose gradually.These changes were significant in the middle and late stage of grain filling.The results showed,in the rain-fed agriculture,slowing leaves ageing is vital important to promote grain filling and increase jield and quallty of Panicum miliaceum L. |
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