| 词条 | Hildenbrandiales |
| 释义 |
| display_parents = 2 | grandparent_authority = G.W.Saunders & Hommersand | parent_authority = Pueschel & Cole, 1982 | taxon = Hildenbrandiaceae | authority = Rabenhorst, 1868 | subdivision_ranks = Genera[1] }}Hildenbrandiales is an order of crustose forms red alga which bear conceptacles[1] and produce secondary pit-connections.[2] They reproduce by vegetative gemmae[3] as well as tetrasporangia, which are produced inside the conceptacles. The way in which the tetraspores are produced is unusual enough to justify the formation of this distinct order.[1] Some members of the order are known from freshwater rivers as well .[4] SystematicsHildenbradiales are difficult to discriminate on morphological grounds; tetrasporangia morphology is the only vaguely reliable character, but molecular techniques have indicated a monophyletic Apophlaea within a paraphyletic Hildenbrandia, with many Hildenbrandia species being recognized as non-monophyletic.[5] References1. ^1 {{Cite journal| last1 = Pueschel | first1 = C.| title = Ultrastructural observations of tetrasporangia and conceptacles in Hildenbrandia (Rhodophyta: Hildenbrandiales)| journal = European Journal of Phycology| volume = 17| issue = 3| pages = 333–341| year = 1982| doi = 10.1080/00071618200650331}} {{Taxonbar|from=Q3135619|from2=Q3006507|from3=Q18507321}}{{Rhodophyta-stub}}2. ^{{Cite journal| last1 = Pueschel | first1 = C.| title = Secondary pit connections in Hildenbrandia (Rhodophyta, Hildenbrandiales)| journal = European Journal of Phycology| volume = 23| pages = 25–51| year = 1988| doi = 10.1080/00071618800650031}} 3. ^{{Cite journal| last1 = Sherwood | first1 = A. R.| last2 = Sheath | first2 = R. G.| title = Microscopic analysis and seasonality of gemma production in the freshwater red alga Hildenbrandia angolensis (Hildenbrandiales, Rhodophyta)| journal = Phycological Research| volume = 48| issue = 4| pages = 241| year = 2000| doi = 10.1111/j.1440-1835.2000.tb00220.x}} 4. ^{{Cite journal| last1 = Khan | first1 = M.| title = On a fresh water Hildenbrandia Nardo. From India| journal = Hydrobiologia| volume = 44| issue = 2–3| pages = 237–240| year = 1974| doi = 10.1007/BF00187272}} 5. ^1 {{Cite journal| last1 = Sherwood | first1 = A. R.| last2 = Sheath | first2 = R. G.| title = Systematics of the Hildenbrandiales (Rhodophyta): Gene Sequence and Morphometric Analyses of Global Collections| journal = Journal of Phycology| volume = 39| issue = 2| pages = 409–422| year = 2003| doi = 10.1046/j.1529-8817.2003.01050.x}} 2 : Florideophyceae|Red algae orders |
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