摘要
以金叶接骨木(Sambucus canadensis‘Aurea')、紫叶水蜡(Ligustrum obtusifolium Sieb.atropurpurea)、金叶水蜡(Ligustrum obtusifolium Sieb' Aurea)一年生离体枝条为试验材料,研究低温胁迫(0、-6、-12、-18、-24、-30、-36℃)与室温条件下(CK)的脯氨酸(Pro)、丙二醛(MDA)含量及相对电导率等生理指标的变化规律。结果表明,随着处理温度的降低,离体枝条脯氨酸、丙二醛含量呈上升趋势,细胞相对电导率也不同程度地增加;对各项指标测定结果进行分析表明,3种彩叶灌木离体枝条耐低温的能力为金叶接骨木>紫叶水蜡>金叶水蜡,后二者差别不明显。
Using 1-year-old in vitro branches of Sambucus canadensis ‘Aurea’,Ligustrum obtusifolium Sieb ‘Aurea’,L.obtusifolium Sieb.atropurpurea as experimental material,the variation of proline（Pro）,malondialdehyde（MDA） and relative conductivity and other physiological indicators at low temperature stress（0 ℃,-6 ℃,-12 ℃,-18 ℃,-24 ℃,-30 ℃,-36 ℃） and room temperature（CK） were studied.The results showed that the content of Pro and MDA and relative electric conductivity in branches presented an upward trend with the decrease of temperature.The cold-resistance of three in vitro color-leafed branches ordered S.canadensis ‘Aurea’,L.obtusifolium Sieb.atropurpurea,L.obtusifolium Sieb ‘Aurea’;and there was no significant difference between the latter two.
出处
《湖北农业科学》
北大核心
2012年第9期1819-1821,共3页
Hubei Agricultural Sciences
基金
吉林省科技厅科技支撑项目(20100259)
关键词
彩叶灌木
低温胁迫
抗寒性
color-leafed shrub
chilling stress
cold-resistance
