A blue pigment protein found in blue-green algae and red algae. It is also called cyanobacterium. The pigment part, phycocyanobilin, has a tetrapyrrole structure with an open porphyrin ring. Within the cell, it is found in granules called phycobilisomes that exist on top of the lamellar structure, and serves as an auxiliary pigment in photosynthesis, capturing the energy of light and transferring it to chlorophyll. [Seiichi Yoshida] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
藍藻(らんそう)類、紅藻類などに含まれる青色の色素タンパク質。藍藻素ともいう。色素部分のフィコシアノビリンは、ポルフィリン環の開いたテトラピロール構造をもっている。細胞内では、ラメラ構造の上に存在するフィコビリゾームとよばれる顆粒(かりゅう)中にあって、光合成の補助色素として光のエネルギーを捕捉(ほそく)し、クロロフィルに受け渡す役割を果たしている。 [吉田精一] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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