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戴鸣凯,张志忠,刘 爽,等.高温胁迫对马铃薯幼苗生长和部分生理指标的影响[J].农学学报,2018,8(9):9-14.,et al.Effects of High Temperature Stress on Growth and Some Physiological Indices of Potato Seedlings[J].Journal of Agriculture,2018,8(9):9-14
高温胁迫对马铃薯幼苗生长和部分生理指标的影响
Effects of High Temperature Stress on Growth and Some Physiological Indices of Potato Seedlings
投稿时间:2018-03-17  修订日期:2018-05-21
DOI:10.11923/j.issn.2095-4050.cjas18030018
中文关键词: 马铃薯  高温胁迫  活性氧代谢  保护酶  
英文关键词: Potato  high temperature stress  active oxygen metabolism  protective enzymes
摘要点击次数: 210
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基金项目:福建省闽江学者科研基金(116-114120019);福建农林大学园艺学院闽江学者科研启动基金。
作者单位E-mail
戴鸣凯 福建农林大学S园艺学院 1041730766@qq.com 
张志忠 福建农林大学S园艺学院 245842419@qq.com 
刘 爽 福建农林大学S园艺学院 281575598@qq.com 
樊佳茹 福建农林大学S园艺学院 16806877730@qq.com 
王革伏 福建农林大学S园艺学院 gefu.wang-pruski@dal.ca 
中文摘要:
      (目的)高温逆境会严重抑制马铃薯生长发育,导致产量下降,造成严重经济损失,本论文通过分析高温胁迫对马铃薯幼苗生长情况和部分生理指标的影响,为马铃薯抗热性机制研究提供参考。(方法)实验以闽薯1号为材料,高温胁迫处理马铃薯植株,观测胁迫条件下植株生长情况变化,超氧阴离子(O2-)、丙二醛(MDA)、过氧化氢(H2O2)和脯氨酸(PRO)含量变化,超氧化物歧化酶(SOD)、过氧化酶(POD)和过氧化氢酶(CAT)等保护酶活性变化。(结果)结果表明高温对植株的株型,叶片大小,长势都造成了一定的影响;生理指标SOD呈现先上升后下降的趋势,POD与CAT则先下降后上升;MDA、O2-、H2O2、PRO含量都出现持续上升的趋势。(结论)幼苗体内活性氧的积累,膜质氧化加剧可能是导致马铃薯高温伤害的原因之一。
英文摘要:
      High temperature stress could seriously inhibit the growth and development of potatoes, leading to the decline of production and cause serious economic losses. To study heat resistance mechanism of potatoes, we analyzed the effect of potato seedlings’ growth conditions and some physiological indices under high temperatures. [Method]We tested the superoxide anion(O2-),malondialdehyde(MDA),hydrogen peroxide(H2O2) and proline(PRO) contents and the activities of superoxide dismutase(SOD), peroxidase(POD), and catalase(CAT) of potato seedlings under the high temperature treatments. The phenotypic changes before and after the high temperature treatment were also recorded. [Result]The results indicated that the high temperatures have certain effects on plant shape, leaf size and growth conditions. The contents of SOD was rising first and then decreased; values of POD and CAT were decreased first and then increased. Meanwhile, the contents of O2-, MDA, H2O2,and PRO were all increased during the examination period. [Conclusion]In summary, the accumulation of reactive oxygen species and increased membrane oxidation in potato seedlings were the reasons that may cause the damages to potatoes under high temperatures.
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