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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 Ditylum brightwellii ： ウィキペディア英語版 Ditylum brightwellii ''Ditylum brightwelli'' is a cosmopolitan marine centric diatom. It is a unicellular photosynthetic autotroph that has the ability to divide rapidly and contribute to spring phytoplankton blooms. ==Description== The ''D. brightwellii'' cell has a high length to diameter ratio. The cell wall is silicified, as is characteristic of all diatoms. This hard, porous covering is known as the frustule and causes the cell to be more dense than the surrounding water. Oceanic currents and surface winds prevent ''D. brightwellii'' cells from sinking beneath the euphotic zone. Cells range in size from 25-100μm in diameter and 80-130μm in length.〔 The valve is most often triangular in shape, but can also be biangular or quadrangular. A long hollow tube called the rimoportula is located centrally and extends from each valve〔 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「Ditylum brightwellii」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.