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	Cu~(2+)胁迫对凤眼莲根系活力及Cu~(2+)-ATPase活性的影响; Effects of the Stresses of Cu~(2+) on Activities of Root Activity and Cu~(2+)-ATPase in the Root and Leave of Eichhorniacrassipes
	王秀丽 ; 李裕红 ; 吴朝金
	2014-12-15
关键词	Cu2+胁迫 凤眼莲 根系活力 Cu2+-ATP酶 Cu2+stress Eichhornia crassipes root activity Cu2+-ATPase
英文摘要	通过水培法研究了不同Cu2+浓度(0.5,1.0,2.5,5.0,10.0 Mg/l)对水生植物凤眼莲[EICHHOrnIA CrASSIPES]蛋白质含量、根系活力及Cu2+-ATP酶活性的影响.结果表明,Cu2+胁迫对凤眼莲蛋白质含量、根系活力及Cu2+-ATP酶活性的影响与Cu2+胁迫浓度及胁迫时间均有关,在Cu2+胁迫时间为1,3,10d时,各Cu2+胁迫浓度下均有利于凤眼莲叶片蛋白质含量的积累.一定浓度和时间的Cu2+胁迫使凤眼莲体内蛋白质含量应激积累增多.在Cu2+胁迫时间为1d时,随着Cu2+浓度的增加,凤眼莲根系活力逐渐增大;当胁迫时间达10d时,根系活力在Cu2+浓度为1.0Mg/l Cu2+时达最大,以后逐渐降低.试验表明,随着Cu2+浓度的增加,叶片Cu2+-ATP酶活性在0.5 Mg/l时达最大,之后逐渐降低;随Cu2+浓度的增加根系Cu2+-ATP酶活性的变化趋势与叶片Cu2+-ATP酶活性的变化趋势相似.; Water culture method is adopted to research the effects of the stresses of Cu2+with different concentrations(0.5,1.0,2.5,5.0,10.0 mg·L-1)on activities of root activity,protein content and Cu2+-ATPase in the roots and leaves of Eichhornia crassipes seedlings.The results show that the effects of the stresses of Cu2+in short time and low concentrations of Cu2+is conducive to the accumulation of the protein content in the leaves of Eichhornia crassipes.The effects of the stresses of Cu2+in short time and high concentrations of Cu2+is conducive to the accumulation of the protein content in the roots of Eichhornia crassipes and the effects of the stresses of Cu2+,in long time and low concentrations of Cu2+is also conducive to the accumulation of the protein content in the roots of Eichhornia crassipes.With the stresses of Cu2+in one day,the stress of Cu2+can enhance the root activity with the enlargement of the stresses of Cu2+.While with the stresses of Cu2+in ten days,the root activity reaches the maximum in 1.0mg·L-1of the concentration of Cu2+and then gradually reduces.Along with the increase of Cu2+concentration,the Cu2+-ATPase activity of leave reaches the maximum in 0.5mg·L-1 of the concentration of Cu2+and then gradually reduces.And the variation of Cu2+-ATPase activity of root is the same as the leave.It can be concluded that the effect of Cu2+on root activity,protein content and Cu2+-ATPase in the roots of Eichhornia crassipes is related to concentration of Cu2+and stress time.; 国家自然科学基金资助项目(30770391)
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/106923]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	王秀丽,李裕红,吴朝金. Cu~(2+)胁迫对凤眼莲根系活力及Cu~(2+)-ATPase活性的影响, Effects of the Stresses of Cu~(2+) on Activities of Root Activity and Cu~(2+)-ATPase in the Root and Leave of Eichhorniacrassipes[J],2014.
APA	王秀丽,李裕红,&吴朝金.(2014).Cu~(2+)胁迫对凤眼莲根系活力及Cu~(2+)-ATPase活性的影响..
MLA	王秀丽,et al."Cu~(2+)胁迫对凤眼莲根系活力及Cu~(2+)-ATPase活性的影响".(2014).

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