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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Prasinococcus capsulatus ： ウィキペディア英語版 Prasinococcus capsulatus In taxonomy, ''Prasinococcus capulatus'' is a species of green algae, specifically of the genus ''Prasinococcus''.〔See the NCBI (webpage on Prasinococcus ). Data extracted from the (【引用サイトリンク】 title=NCBI taxonomy resources )〕 The name "'capulatus'" coming from the alga's large capsule which surrounds the cell. This unicellular algal species was discovered in 1990 in the West Pacific Ocean and has characteristic reproduction methods as well as an interesting and potentially exploitable morphology.〔( Miyashita ''et al.'' 1993 )〕 This is the only species in the genus, though various strains exist, for example URI 266G is the Atlantic clone.〔 ==Morphology== The most notable feature of ''P. capsulatus's'' morphology is its large capsule composed of an exo-polysaccharide which has been dubbed "capsulan". Capsulan is thought to be synthesised in the Golgi and then secreted through the decapore (a specialised circle of 10 pores through the cell wall). After exiting the decapore capsulan becomes visible and it is thought that it cross links with divalent ions in the seawater.〔Sieburth ''et al.'' 1999 ''Widespread occurrence of the oceanic ultraplankter'' Prasinococcus capsulatus ''(Prasinophyceae), the diagnostic "Golgi-Decapore complex" and the newly discovered polysaccharide "capsulan"''〕 Research is currently underway to find potential applications for capsulan and how to maximise its production. The capsule's function is not clearly defined but various explanations have been suggested. One is that it offers protection to newly divided cells which lack a thick cell wall, another is that it provides a template for daughter cells to synthesise their new cell wall. The capsule may also interfere with filter feeding, thus reducing predation. In similar species, capsules have been noted for their antibacterial properties 〔Davidson and Marchant 1987 ''"Binding of manganese by Antarctic'' Phaeocystis pouchetii ''and the role of bacteria in its release"''〕 and a conspicuous lack of bacteria as well as viral particles in impure samples of ''P. capsulatus'' has been observed.〔 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「Prasinococcus capsulatus」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.