壳聚糖对辣椒幼苗抗寒性的效应  

Effect of chitosan on chilling tolerance of pepper seedling

作　　者：闫晓花[1] 郁继华[1] 雍山玉[1] 张洁宝[1] 

机构地区：[1]甘肃农业大学农学院,甘肃兰州730070

出　　处：《甘肃农业大学学报》2007年第3期51-54,共4页Journal of Gansu Agricultural University

基　　金：甘肃省科技攻关项目(2GS052-A41-007-05);甘肃省自然基金项目(3ZS061-A25-0757).

摘　　要：用50 mg/L的壳聚糖溶液喷施辣椒幼苗,在不同低温胁迫时间下,对辣椒幼苗叶片中主要渗透调节物质的进行了测定.结果表明,壳聚糖能明显地降低辣椒幼苗叶片细胞质渗出率,增加可溶性糖和脯氨酸含量,从而减轻低温对辣椒幼苗的伤害程度.Pepper seedlings were sprayed by 50 mg/L chitosan solution. The main osmotic adjusting substances in leaves of pepper seedlings under different time of low temperature stress were determined. The results showed that the content of soluble sugars and proline in leaves of pepper seedlings increased, and the cytoplasmic osmotic rate decreased at the same time. The results indicate that all the changes above could reduce the injuring degree of low tempeture on pepper seedlings.

关 键 词：壳聚糖 辣椒 抗寒性 可溶性糖 脯氨酸 

分 类 号：S641.134[农业科学—蔬菜学]