| 翻訳と辞書 |
| Dendriscocaulon ： ウィキペディア英語版 |
Dendriscocaulon
''Dendriscocaulon'' is a taxonomic name that has been used for a genus of fruticose lichen (shrubby form lichen) with a cyanobacteria as the photobiont partner of the fungus. ''Dendriscocaulon'' is considered a taxonomic synonym of the genus ''Sticta'', a foliose lichen (leafy form lichen), which generally has a green alga as the photobiont partner.〔Form and structure - Sticta and 'Dendriscocaulon', Australian Botanic Garden website, ()〕 Lichens that have been called ''Dendriscocaulon'' or ''Sticta'' involve the same fungal species. They show dramatically different morphology, may grow side-by-side, and mixed forms exist where different algae are growing within different portions of the same fungal thallus.〔 The biochemistry of the two forms is very different,〔 but the DNA sequences from the fungus and the photobiont can be distinguished using different primers for DNA sequencing.
==Use of the name==
Taxonomists now write the genus name with scare quotes around it,〔 to make clear that they are not accepting the name as correct. The name can be convenient, however, because of the visible morphological difference, and because it was used in older literature.
The International Code of Botanical Nomenclature states that "For nomenclatural purposes names given to lichens apply to their fungal component."〔 Article 13(d)〕 Names of genera and species are based on type specimens. The type of ''Dendriscocaulon'' Nyl. from New Zealand, published in 1888, is not the same as the type of ''Sticta'' (Schreb.) Ach., published in 1803.〔(【引用サイトリンク】title=Mycobank )〕 The fungal partner in the type specimen of ''Dendriscocaulon'' is therefore unlikely to be the same strain as the fungal partner in the type specimen of ''Sticta'', which raises the possibility that at some future time the two genera may be separated once more on the basis of genetic difference in the fungal partner, rather than by the photobiont or the morphology of the lichen. As with all lichens, the convention of nomenclature provides only partial illumination about the concepts of genus and species as they apply to the association of two or more species that are known as lichens.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Dendriscocaulon」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|