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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 Black band disease ： ウィキペディア英語版 Black band disease Black band disease is a disease when corals develop a black band. It is characterized by complete tissue degradation due to a pathogenic microbial consortium The mat is present between apparently healthy coral tissue and freshly exposed coral skeleton. ==Appearance== Black Band disease was first observed on reefs in Belize in 1973 by A. Antonius, who described the pathogen he found infecting corals as Oscillatoria membrancea, a cyanobacteria. The band color may be blackish brown to red depending on the vertical position of a cyanobacterial population associated with the band. The vertical position is based on a light intensity-dependent photic response of the cyanobacterial filaments, and the color (due to the cyanobacterial pigment phycoerythrin) is dependent on the thickness of the band. The band is approximately thick and ranges in width from to White specks may be present on surface, at times forming dense white patches. The pathogenic microbial mat moves across coral colonies at rates from to a day. Tissue death is caused by exposure to an hypoxic, sulfide-rich microenvironment associated with the base of the band. 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「Black band disease」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.