2种海洋寡糖对大麦种子萌发和生理特性的影响  

Effects of Two Marine Oligosaccharides on Barley Seeds Germination and Physiological Characters

作　　者：王婷婷[1] 赵丽[1] 夏萱[1] 王鹏[1] 江晓路[1] 

机构地区：[1]中国海洋大学食品科学与工程学院,山东青岛266003

出　　处：《中国海洋大学学报（自然科学版）》2011年第11期61-66,共6页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(30901122);海洋公益性行业科研专项(201105028)资助

摘　　要：本研究应用具有不同电荷性的褐藻寡糖(ADO)和壳寡糖(COS)处理大麦种子,探索在相同条件下不同浓度的海洋寡糖对大麦幼苗生长情况及生理特性的影响。生长指标包括苗长、根长、苗重及根重,以及对大麦种子淀粉酶活力和叶绿素含量的影响。试验结果表明:当ADO和COS处理浓度分别为0.5%和0.025%时,大麦的各项生长指标、种子淀粉酶活力及叶绿素含量均达到最大值,与对照组相比显著增加(P<0.05)。2种海洋寡糖均是具有独特生理活性的分子片段,分子量大小相近,但基于2种寡糖分子结构的不同,造成在对大麦的促生长方面存在差异性,为以后2种海洋寡糖的合理开发利用提供了参考。Two marine oligosaccharides with similar molecular weight and different electric charge： Alginate-derived Oligosaccharide（ADO） and Chitosan Oligosaccharide（COS） were evaluated for the effects of different concentrations on seedling growth situation and physiological characters of barley.The growth indexes include： seedling＇s height,root＇s length,seedling＇s weight,root＇s weight and the effects on barley seed amylase activity and chlorophyll content.The barley growth indexes the seed amylase activity and chlaophyll content reached the maximum when ADO and COS were at the concentration of 0.5% and 0.025% respectively compared with the control group significantly increased（P0.05）.These results indicate that these two marine oligosaccharides have similar effect but different of the best concentration was based on their different molecule structure,providing reference for rational development of these two marine oligosaccharides.

关 键 词：褐藻寡糖 壳寡糖 大麦 幼苗生长 生理特性 

分 类 号：Q53[生物学—生物化学]