摘要
以青稞为实验材料,通过水培实验法探究了不同浓度壳聚糖(CTS)预处理对12%聚乙二醇(PEG)胁迫下青稞幼苗部分生理指标的影响.结果显示,12%PEG胁迫下青稞幼苗叶片含水量、叶绿素相对含量和可溶性蛋白含量均下降,经适宜浓度的CTS预处理,能在一定程度上抑制青稞幼苗含水量的下降,提高叶绿素相对含量和可溶性蛋白含量.因此,适宜浓度的壳聚糖可以增强青稞幼苗的抗旱能力,减轻水分胁迫对青稞幼苗造成的伤害.
Effects of different concentrations of chitosan（CTS） pretreatment on some physiological indexes were investigated in hulless barley seedlings under 12% of the Polyethylene glycol（PEG） by solution culture method. The results show that the contents of water content, relative chlorophyll and soluble protein all decreased under 12 % PEG stress; but opportune concentration CTS pretreatment is able to inhibit the decrease of water content, and also helps improve the content of relative chlorophyll and the content of soluble protein to some extent. In conclusion, appropriate concentration CTS pretreatment can enhance drought resistance of hulless barley seedlings and alleviate the damage caused by water stress.
出处
《内江师范学院学报》
2013年第10期21-23,45,共4页
Journal of Neijiang Normal University
基金
内江师范学院生物化学与分子生物学重点建设学科项目(内师院发[2012]96号)
关键词
青稞
壳聚糖
水分胁迫
生理指标
Hulless barley
chitosan
water stress
physiological indexes
