THE ZOOSPORE OF CHLOROKYBUS ATMOPHYTICUS, A CHAROPHYTE WITH SARCINOID GROWTH HABIT'
THE ZOOSPORE OF CHLOROKYBUS ATMOPHYTICUS, A CHAROPHYTE WITH SARCINOID GROWTH HABIT'
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具有类肉瘤生长习性的轮藻类 Chlorokybus atmophyticus 的游动孢子
DOI：
10.1002/j.1537-2197.1980.tb07706.x
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发表时间：
1980
影响因子：
3
通讯作者：
K. Stewart
中科院分区：
文献类型：
--
作者：
C. Rogers;K. R. Mattox;K. Stewart
气生绿球藻具有类肉瘤生长习性，产生鳞片状游动孢子。鞭毛横向着生，内部附着在轮藻的多层结构上。在每个细胞中有两种蛋白核，这一特征以前只在一个有鳞的绿色鞭毛中观察到。Atmophyticus表明，类肉质生长习性至少两次独立出现在绿藻中，除非与其他标准相结合，否则不能用来定义分类群。在此基础上，认为该属应归属于一个独立的绿藻科和一个独立的绿藻目。毛藻科是绿藻中的中心兴趣，因为它包括与陆地植物祖先相关的形式。了解类内习性和繁殖方式的演变对于理解导致早期颈卵器形成的适应是必不可少的，也是在将轮藻与其他绿藻类群进行比较时更严格的生理学关注的问题。
Chlorokybus atmophyticus has a sarcinoid growth habit and produces scale-covered zoospores. Flagella are laterally inserted and attached internally to a multilayered structure characteristic of the Charophyceae. There are two kinds of pyrenoid in each cell, a feature previously observed in only one scaly green flagellate. C. atmophyticus demonstrates that the sarcinoid growth habit arose independently at least twice in the green algae and cannot be used to define taxonomic groups unless combined with other criteria. It is further concluded that C. atmophyticus should be classified in a separate family Chlorokybaceae and a separate order Chlorokybales. THE CHAROPHYCEAE iS of central interest among green algae because it includes forms related to the ancestry of land plants. An understanding of the evolution of habit and mode of reproduction within the class is essential to the understanding of adaptations leading to early archegoniates and is also of more strictly phycological concern in the comparison of Charophyceae with other green algal groups.