Ca^(2+)对普通念珠藻(Nostoc commune Vanch.)生长影响的试验  

Effects of Ca^(2+)-ion concentration on the growth ofNostoc commune Vanch.

作　　者：向刚[1] 龚西旭[1] 蒋欣琳[1] 周红 

机构地区：[1]贵州师范大学生物科学技术系,贵州贵阳550001 [2]贵州省贵阳市第六中学,贵州贵阳550002

出　　处：《贵州师范大学学报（自然科学版）》2003年第2期49-51,共3页Journal of Guizhou Normal University：Natural Sciences

基　　金：资助项目:贵州师范大学2001年学生科研基金

摘　　要：对普通念珠藻(NostoccommuneVanch.)进行了生长条件的探索研究。初步研究结果表明:普通念珠藻的生长需要最适光照强度为2200lux左右,最适温度25℃,生长最适点pH=8;在0.02%的Ca2+浓度下的生长状况最好。The blue-green alga - Nostoc commune is distributed in China, and is proved one of the valuable economic species among blue-green algae. Conditions of the growth of this alga was studied on liquid medium in culture. The results of our experiments demonstrated that this blue-green alga grews better under the scattered light with light intensity 2200lux, 25℃, and pH of 8. Maximum percentage of the growth of Nostoc commune was obtained at Ca 2+ -ion concentration 0.02%.

关 键 词：普通念珠藻 生长条件 生长影响 光照强度 温度 Ca2^+浓度 固氮蓝藻 

分 类 号：Q949.225[生物学—植物学] Q945.3