The morphology, reproduction and small-subunit rRNA gene sequence of Cephalocystis (Rhodymeniaceae, Rhodophyta), a new genus based on Cordylecladia furcellata J. Agardh from Australia
The morphology, reproduction and small-subunit rRNA gene sequence of Cephalocystis (Rhodymeniaceae, Rhodophyta), a new genus based on Cordylecladia furcellata J. Agardh from Australia
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基于澳大利亚 Cordylecladia Furcellata J. Agardh 的新属头孢菌属 (Rhodymeniaceae, Rhodophyta) 的形态、繁殖和小亚基 rRNA 基因序列
DOI：
10.2216/i0031-8884-35-1-48.1
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
G. Kraft
中科院分区：
文献类型：
--
作者：
A. Millar;G. Saunders;I. M. Strachan;G. Kraft
澳大利亚东南部特有种Cordylecladia furcellata J. Agardh在习性、微小解剖结构和重要的小亚基rrna序列细节上与该属的欧洲模式种Cordylecladia erecta (Greville) J. Agardh不同。特别明显的是，在毛囊中，所有的生殖阶段都局限于无色的顶端豆荚状结构，而在直立的毛囊中，精管和四支管呈线状、亚末端肿胀，囊包囊沿着其他未修饰的轴形成密集的聚落。新属头囊虫（Cephalocystis）拟包括C. furcellata (J. Agardh) comb作为模式种。11月，加上一个未描述的新南威尔士物种，C. leucobotrys sp. 11 .后者的主要区别在于囊囊的位置，它们出现在主轴上的亚顶簇中，而不是在顶透明豆荚中。考虑到欧洲型种冬虫夏草的习性、营养解剖和囊壳位置的相似性。
Abstract The southeastern Australian endemic species Cordylecladia furcellata J. Agardh differs in habit, minor anatomical, and significant small-subunit rRNA-sequence details from the European type species of the genus, Cordylecladia erecta (Greville) J. Agardh. Particularly conspicuous in C. furcellata are the colourless, apical, pod-like structures to which all reproductive stages are confined, in contrast to C. erecta in which spermatangia and tetrasporangia occur in linear, subterminal swellings and cystocarps form in dense aggregates along otherwise unmodified axes. The new genus Cephalocystis is proposed to include, as type species, C. furcellata (J. Agardh) comb. nov., plus an undescribed New South Wales species, C. leucobotrys sp. nov. The latter differs mainly in the position of the cystocarps, which occur in subterminal clusters on major axes rather than in terminal hyaline pods. Given the similarity of habit, vegetative anatomy and cystocarp position in the European type species of Cordyleclad...