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A photosynthetic pigment (accessory pigment; chloroplast pigment; antenna pigment) is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy necessary for photosynthesis. ==Plants== Green plants have six closely related photosynthetic pigments (in order of increasing polarity): *Carotene - an orange pigment *Xanthophyll - a yellow pigment *Phaeophytin ''a''〔(CHLOROPHYLLS ), JECFA, 1987〕 - a gray-brown pigment *Phaeophytin ''b''〔 - a yellow-brown pigment *Chlorophyll ''a'' - a blue-green pigment *Chlorophyll ''b'' - a yellow-green pigment Chlorophyll a is the most common of the six, present in every plant that performs photosynthesis. The reason that there are so many pigments is that each absorbs light more efficiently in a different part of the electromagnetic spectrum. well at a wavelength of about 400-450 nm and at 650-700 nm; chlorophyll b at 450-500 nm and at 600-650 nm. Xanthophyll absorbs well at 400-530 nm. However, none of the pigments absorbs well in the green-yellow region, which is responsible for the abundant green we see in nature. 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「Photosynthetic pigment」の詳細全文を読む スポンサード リンク
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