螺旋藻品系Z中不同形态藻丝体的生长速率和光合色素比较  

THE COMPARISON ON GROWTH RATE AND PHOTOPIGMENTS OF FILAMENTS OF SPIRULINA PLATENSIS STRAIN Z WITH DIFFERENT MORPHOLOGY

作　　者：汪志平[1] 崔海瑞[1] 朱家新[2] 贾小明[1] 钱凯先[3] 陈声明[4] 

机构地区：[1]浙江农业大学原子核农业科学研究所,杭州310029 [2]浙江省农业厅 [3]浙江大学生物系,杭州310027 [4]浙江农业大学

出　　处：《微生物学报》1998年第4期323-324,共2页Acta Microbiologica Sinica

基　　金：浙江省科委"九五"重点项目

摘　　要：The line-shaped filaments Sp-Z(L) were isolated and cultured from Spirulina platensis Sp-Z. The growth rate of Sp-Z(L) was only 64% as much as that of SP-Z when the light intensity was 4000 Lux. The contentS (×10-3 g / g dry weight) of chlorophylls, carotenoids and phycobilins of Sp-Z(L) and Sp-Z were 20.6, 0.343, 5.00 and 24.1 0.297, 4.46, respectively. Moreover, as to the absorption spectra of the three photopigments of SP-Z(L), red shifts were observed. Therefore, after the spiral Sp-Z breeded or changed into Sp-Z(L), The contentS of carotenoids and phycobilins raised 23% and 12%, respectively, but the contents of chlorophylls dropped 14.5%, and the growth rate dropped 36% too. The results probably showed that the decrease of chlorophylls was one of the main reasons that caused the remarkable decrease of the growth rate of SP-Z(L).The line-shaped filaments Sp-Z(L) were isolated and cultured from Spirulina platensis Sp-Z. The growth rate of Sp-Z(L) was only 64% as much as that of SP-Z when the light intensity was 4000 Lux. The contentS (×10-3 g / g dry weight) of chlorophylls, carotenoids and phycobilins of Sp-Z(L) and Sp-Z were 20.6, 0.343, 5.00 and 24.1 0.297, 4.46, respectively. Moreover, as to the absorption spectra of the three photopigments of SP-Z(L), red shifts were observed. Therefore, after the spiral Sp-Z breeded or changed into Sp-Z(L), The contentS of carotenoids and phycobilins raised 23% and 12%, respectively, but the contents of chlorophylls dropped 14.5%, and the growth rate dropped 36% too. The results probably showed that the decrease of chlorophylls was one of the main reasons that caused the remarkable decrease of the growth rate of SP-Z(L).

关 键 词：钝顶螺旋藻 形态变异 生长速率 光合色素 

分 类 号：Q949.22[生物学—植物学] Q945