Morphology, reproduction and range extension of Rhodogorgon (?Nemaliales, Rhodophyta)
Morphology, reproduction and range extension of Rhodogorgon (?Nemaliales, Rhodophyta)
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红戈尔根（Nemaliales，Rhodophyta）的形态、繁殖和范围扩展
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发表时间：
1992
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影响因子：
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通讯作者：
N. Ogden
中科院分区：
文献类型：
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作者：
N. Ogden
摘要原产于加勒比海地区的杜鹃花属Rhodogorgon J. Norris et布赫（？Nemaliales，Rhodophyta）为首次报道。配子体是多轴的，雌雄异株的，并且具有纤维合轴的发育。子实体无柄，在受精后与子实体的支持细胞融合。成熟的果孢子体是分散的，由假二歧分枝的成生殖细胞细丝连接而成。果孢子囊是顶生的，并且可以再生，从而形成宿存的果孢子囊壁的巢。单孢子囊在配子囊植物中从花丝顶端形成，并且在旧的孢子囊壁内重复再生。在培养中，果孢子发育形成小的丝状丛，具有无柄的单孢子囊。在加勒比地区的生态观察表明，植物的高度和分支密度在杜鹃花与水运动的程度有关。
Abstract Originally described from the Caribbean, the genus Rhodogorgon J. Norris et Bucher (?Nemaliales, Rhodophyta) is reported from the subtidal of the Philippines for the first time. Gametophytes are multiaxial, dioecious and have cellulosympodial development. Carpogonia, which have not been reported previously, are sessile and, after supposed fertilization, fuse with the supporting cell of the carpogonium. The mature carposporophyte is diffuse and consists of linked clusters of pseudodichotomously branched gonimoblast filaments. Carposporangia are terminal and regenerate such that nests of persistent carposporangial walls are formed. Monosporangia are formed in gametangial plants from the apices of filaments and also regenerate repeatedly within old sporangial walls. In culture, carpospores develop to form small filamentous tufts with sessile monosporangia. Ecological observations in the Caribbean indicate that plant height and branch density in Rhodogorgon is related to the degree of water movement ...