XIE Lu-yu,ZHOU Guang-zhu,ZHANG Xiao-fei,et al.Effects of Exogenous Salicylic Acid on Freezing Resistance of Prunus wilsonii Seedings[J].Northern Horticulture,2013,37(06):63-65.
外源水杨酸对紫叶稠李幼苗抗寒性的影响
- Title:
- Effects of Exogenous Salicylic Acid on Freezing Resistance of Prunus wilsonii Seedings
- 文章编号:
- 1001-0009（2013）06-0063-03
- 分类号:
- S 662.3
- 文献标志码:
- A
- 摘要:
- 以紫叶稠李幼苗为试材，分别采用浓度为0、0.5、1.0、1.5、2.0 mmol/L的SA喷施叶片，在人工冷胁迫下对紫叶稠李的花青素含量、游离脯氨酸含量、相对电导率、SOD含量、丙二醛含量等5个生理指标进行了测定，研究了外源水杨酸对紫叶稠李幼苗抗寒性的影响。结果表明：外源水杨酸喷施叶片可以抑制低温对紫叶稠李花青素的的破坏作用、提高SOD酶的活性、增加游离脯氨酸的含量、降低MDA含量和相对电导率，从而减弱低温对紫叶稠李的伤害，提高紫叶稠李幼苗的的抗寒力。1.0 mmol/L的SA处理对紫叶稠李幼苗效果最好。
- Abstract:
- Taking Prunus wilsonii as experimental material，by spraying 0,0.5,1.0,1.5,2.0 mmol/L SA solution respectively to the tested plants leaves，under artificial low-temperature stress，five physiological indexes anthocyanin content，free proline content，relative electrical conductivity，SOD content and MDA content were determined and the effects of exogenous salicylic acid on freezing resistance of Prunus wilsonii were studied.The results showed that the application of exogenous salicylic acid could inhibit the destructive effect of low temperature on anthocyanin，improve the activity of SOD enzyme，increase the content of free proline and reduce the content of MDA and the relative conductivity，thus weakening the damage of low temperature on Prunus wilsonii，improving freezing resistance of the Prunus wilsonii 1.0 mmol/L SA treatment was optimum.
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备注/Memo
第一作者简介：解璐毓（1976-），女，山西长治人，硕士，研究方向为园林植物生理生态与栽培。E-mail：xieluyu888@126.com.