南京晓庄学院学报
南京曉莊學院學報
남경효장학원학보
Journal of Nanjing Xiaozhuang University
2015年
6期
77-81
,共5页
凤眼莲%Hg2+胁迫%外源Spd%多胺
鳳眼蓮%Hg2+脅迫%外源Spd%多胺
봉안련%Hg2+협박%외원Spd%다알
Eichhornia crassipes%Hg2+ stress%exogenous spermidine%PAs
实验研究了外源亚精胺( Spd)对Hg2+胁迫下凤眼莲叶片细胞内脯氨酸( Pro)含量、多胺合成酶( ADC和ODC)和多胺氧化酶( Pro)活性的影响及调节作用。结果显示：随着Hg2+处理浓度的升高,各处理凤眼莲叶片内Pro含量、ADC和ODC活性先升后降,PAO活性逐渐降低。外源Spd的施用提高了Pro含量,提高了ADC、ODC和PAO活性。该研究说明Hg2+胁迫引起了凤眼莲体内多胺和Pro代谢的紊乱,外源Spd缓解了这种代谢紊乱。
實驗研究瞭外源亞精胺( Spd)對Hg2+脅迫下鳳眼蓮葉片細胞內脯氨痠( Pro)含量、多胺閤成酶( ADC和ODC)和多胺氧化酶( Pro)活性的影響及調節作用。結果顯示：隨著Hg2+處理濃度的升高,各處理鳳眼蓮葉片內Pro含量、ADC和ODC活性先升後降,PAO活性逐漸降低。外源Spd的施用提高瞭Pro含量,提高瞭ADC、ODC和PAO活性。該研究說明Hg2+脅迫引起瞭鳳眼蓮體內多胺和Pro代謝的紊亂,外源Spd緩解瞭這種代謝紊亂。
실험연구료외원아정알( Spd)대Hg2+협박하봉안련협편세포내포안산( Pro)함량、다알합성매( ADC화ODC)화다알양화매( Pro)활성적영향급조절작용。결과현시：수착Hg2+처리농도적승고,각처리봉안련협편내Pro함량、ADC화ODC활성선승후강,PAO활성축점강저。외원Spd적시용제고료Pro함량,제고료ADC、ODC화PAO활성。해연구설명Hg2+협박인기료봉안련체내다알화Pro대사적문란,외원Spd완해료저충대사문란。
The influence of exogenous spermidine ( Spd) on polyamines( PAs) metabolism in water hyacinth leaves under Mercury( Hg) stress was investigated after 6 days treatment. The result showed that the Pro content, the ac-tivities of ADC, and ODC increased at first and then decreased;the activity of PAO decreased with the increase of the Hg concentrations. Compared with the Hg-treatment only, exogenous Spd (0. 1mM) increased the contents of Pro and the activities of ADC, ODC, and PAO in water hyacinth leaves. These results suggest that exogenous Spd can alleviate the metabolic disturbance of polyamines caused by Hg in water hyacinthe leaves.
