轮藻科(Characeae)三个属无丝分裂的研究

Comparative study on amitosis in three genus of characeae

用Giemsa常规染色法和DAPI(4′,6-diamidino-2-′phenylindole)荧光染色法对轮藻科(Characeae)3个属:乳突丽藻(Nitella papillata)、钝节拟丽藻(Nitellopsis obtusa)和弧枝轮藻(Chara connivens)进行了细胞核无丝分裂研究.结果发现无丝分裂是这几种藻体的主要分裂方式;同种藻不同部位,不同种藻之间,无丝分裂形态有所不同.

Three charophytes, Nitella papillata , Nitellopsis obtuse and Chara connivens in three different genus were stained by Giemsa and 4＇, 6-diamidino-2＇-phenylindole to observe their nucleus. The result showed that amitosis is the only nuclear division in all the vegetative cells. Nevertheless, the form and amitosis style are different in different cells, branchlet cells, internode cells, node cells and rhizoid, within each species and among three species.