摘要
采用PEG-6000人工模拟干旱胁迫的方法对漾濞核桃幼苗叶片相对含水量、可溶性糖、可溶性蛋白质、丙二醛和游离脯氨酸的变化进行研究。结果表明:相对含水量、可溶性糖和脯氨酸等指标综合反映了核桃幼苗的抗旱性;随干旱胁迫加剧,幼苗相对含水量逐渐降低,可溶性糖含量逐渐升高,可溶性蛋白、丙二醛和脯氨酸呈现轻微下降后逐步上升的趋势。
The changes of the relative water content （RWC）, soluble sugar （Ssug）, soluble protein （Spro）, malonaldehyde （MDA） and free proline （Fpro） of Juglans sigillata seedlings under different simulated water stress by means of treating with polyethyleneglycol 6000 （ PEG - 6000 ） solutions with different osmotic potentials. The re- suits showed that the indexes of RWC, Ssug and Fpro could comprehensively reflect the drought resistance of J. si- gillata seedlings. Along with the development of drought stress, the RWC decreased gradually, the Ssug content in- creased, the contents of Spro, MDA and Fpro first dropped slightly and then increased gradually.
出处
《西南林业大学学报（自然科学）》
CAS
2013年第4期103-106,共4页
Journal of Southwest Forestry University：Natural Sciences
关键词
漾濞泡核桃
相对含水量
可溶性糖
丙二醛
脯氨酸
Juglans sigillata
relative water content
soluble sugar
malonaldehyde
free proline
