3种无机盐对念珠藻生长和胞外多糖分泌的影响  

Effect of Three Inorganic Salts on Nostoc commune Growth and Exopolysacchride(EPS) Secretion

作　　者：游萍[1] 张以忠[1] 聂忠平[1] 

机构地区：[1]毕节学院环境与生命科学系,贵州毕节551700

出　　处：《贵州农业科学》2011年第4期57-60,共4页Guizhou Agricultural Sciences

摘　　要：为更好地开发和利用地木耳,探讨了不同浓度的NaCl、NaNO3、Ca(NO3)2对地木耳生物量积累和胞外多糖产生的影响。结果表明:NaCl和NaNO3诱导子在低浓度时起促进作用,高浓度时抑制地木耳的生长和胞外多糖的产生,均以20 mmol/L浓度为最佳的诱导条件;而Ca(NO3)2随浓度的增加生物量和多糖含量上升,80 mmol/L诱导作用效果最好。Effect of different concentrations of NaCl,NaNO3 and Ca（NO3）2 on biomass accumulation and EPS secretion of N.commune were studied to develop and utilize N.commune preferably.The results showed that the elicitors of NaCl and NaNO3 can promote plant growth and EPS secretion in lower concentration while inhibit in higher concentration.The optimum condition of elicitor is 20 mmol/L.The biomass and EPS content increase with the increase of Ca（NO3）2 concentration and 80 mmol/L Ca（NO3）2 has the best effect.

关 键 词：诱导子 地木耳 生物量 胞外多糖 

分 类 号：S646.9[农业科学—蔬菜学]