摘要
从温泉分离出一种嗜热蓝藻。它的生长最适温度为４５℃。在饱和光及４５一４７℃中藻的光合放氧活性可达４５０μｍｏｌＯ＿２．ｍｇｃｈｌａ￣（－１）·ｈｒ￣（－１）。在黑暗中藻的呼吸和放氢的最适温度都在４７℃。电子显微镜相片显示，藻细胞中类囊体十分发达，它连接着藻胆体，并包围着核质、多角体和蓝藻颗粒体。
A thermophilic blue- green alga Myxosarcina concinna Printz was isolated from hot spring.The optimum temperature for its growth is at 45℃.In saturated light and 45～47℃ its photosynthetic Oxygen evolution activity can reach as high as 450μmol O_2· mgchla￣(-1)· hr￣(-1).The optimum temperatures for its respiration and hydrogen evolution are at 47℃ in the dark. Electron microscopic photographs show well developed thylakoids with phycobilisomes attached and surrounding the nucle-oplasm,polygonal body and cyanophycin in the algal cells.
出处
《北京大学学报（自然科学版）》
CAS
CSCD
北大核心
1994年第4期492-499,共8页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家自然科学基金
关键词
嗜热蓝藻
放氧活性
类囊体
蓝藻门
thermophilic blue-green alga
photosystem Ⅱ
Oxygen evolution activi-ty
thylakoids
