杜氏藻细胞的无性增殖过程

Studies on the Propagation of the Cell of Dunaliella peircei

杜氏藻细胞的无性增殖过程刘广发，楼士林（生物学系）由于杜氏藻富含蛋白质、甘油和β－胡萝卜素等物质，美、澳、以等国自７０年代起已竞相投入巨资进行研究和大规模养殖￣［１，２］。杜氏藻通常以细胞纵裂方式进行无性增殖￣［３］。本文借助光学和电子显微镜观察，剖...

the nucleus of the cell of D. peircei is divided into two kidney-likedaughter nuclei when the cell is in its propagating period,and then the pyrenoid of the cell isdoubled.A large number of mitochondria and microtubles have been found at the bridgelinked between the two ddughter cells. The single chloroplast of the cell turns its form fromthe ″cup-shaped″to ″half-cup-shaped″during the stage of division of the mother cell and thefirst several hours of the life cycle of separated cells. A daughter cell occupies the originalstigma and the other grows a new one. The two daughter cells finally separate each other atthe spot where is about one third of the length of the cell far from the rear end of the mothercell.the newborn cell has two flagella too,one of them is from her mother,the other isnew.