| 热锻炼对高羊茅和多年生黑麦草抗氧化能力的影响 |
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| 引用本文： | 李高扬,徐胜,李建龙,王艳. 热锻炼对高羊茅和多年生黑麦草抗氧化能力的影响[J]. 南京农业大学学报, 2009, 32(1) |
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| 作者姓名： | 李高扬 徐胜 李建龙 王艳 |
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| 作者单位： | 南京大学生命科学学院,江苏南京,210093 |
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| 基金项目： | 江苏省农业三项工程项目 |
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| 摘 要： | 通过对高羊茅凌志(Festuca arundinacea cv.Barlexas) 和多年生黑麦草爱神特(Loliumperenne cv.Accent) 2种冷季型草坪草热锻炼后进行高温胁迫,并与没有热锻炼的植株在高温胁迫下的表现进行对比分析,来研究热锻炼对高温胁迫下高羊茅凌志和多年生黑麦草爱神特的影响.结果发现,热锻炼通过减缓草坪草叶片活性氧的积累而减轻氧化胁迫,降低膜脂过氧化,减轻高温对细胞膜系统的伤害;高温F经过热锻炼的冷季型草坪草叶片可能通过缓减抗坏血酸(AsA) 和还原型谷胱甘肽(GSH) 含量的降低来提高适应高温的能力;随着温度的升高,高羊茅和黑麦草叶片叶绿体的损伤程度不断增加,当温度达到46℃时,热锻炼不能防止高温对叶绿体的破坏.同时对比2种草坪草发现,经过热锻炼处理的高羊茅比多年生黑麦草耐热性更强.
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| 关 键 词： | 热锻炼 高温胁迫 高羊茅 多年生黑麦草 耐热性 冷季型草坪草 |
Effect of heat acclimation on anti-oxidation capacities in tall fescue(Festuca arundinacea cv.Barlexas) and perennial ryegrass(Lolium perenne cv.Accent) |
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| LI Gao-yang,XU Sheng,LI Jian-long,WANG Yan. Effect of heat acclimation on anti-oxidation capacities in tall fescue(Festuca arundinacea cv.Barlexas) and perennial ryegrass(Lolium perenne cv.Accent)[J]. Journal of Nanjing Agricultural University, 2009, 32(1) |
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| Authors: | LI Gao-yang XU Sheng LI Jian-long WANG Yan |
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| Affiliation: | College of Life Sciences;Nanjing University;Nanjing 210093;China |
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| Abstract: | Impact of heat acclimation on the heat tolerance of two cool-season turfgrasses,tall fescue(Festuca arundinacea cv.Barlexas)and perennial ryegrass(Lolium perenne cv.Accent)was studied under heat stress through comparison of their performances with heat acclimation and without heat acclimation treatment.The results showed that cool-season turfgrasses with heat acclimation before heat stress performed better under high temperature stress than those without acclimation,by slowing the accumulation of active oxy... |
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| Keywords: | heat acclimation heat stress tall fescue perennial ryegrass heat tolerance cool-season turfgrasses |
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