Chlorophyll Modifications and Their Spectral Extension in Oxygenic Photosynthesis
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- Min Chen
- School of Biological Sciences, University of Sydney, Sydney, New South Wales 2006, Australia;
書誌事項
- 公開日
- 2014-06-02
- DOI
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- 10.1146/annurev-biochem-072711-162943
- 公開者
- Annual Reviews
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説明
<jats:p> Chlorophylls are magnesium-tetrapyrrole molecules that play essential roles in photosynthesis. All chlorophylls have similar five-membered ring structures, with variations in the side chains and/or reduction states. Formyl group substitutions on the side chains of chlorophyll a result in the different absorption properties of chlorophyll b, chlorophyll d, and chlorophyll f. These formyl substitution derivatives exhibit different spectral shifts according to the formyl substitution position. Not only does the presence of various types of chlorophylls allow the photosynthetic organism to harvest sunlight at different wavelengths to enhance light energy input, but the pigment composition of oxygenic photosynthetic organisms also reflects the spectral properties on the surface of the Earth. Two major environmental influencing factors are light and oxygen levels, which may play central roles in the regulatory pathways leading to the different chlorophylls. I review the biochemical processes of chlorophyll biosynthesis and their regulatory mechanisms. </jats:p>
収録刊行物
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- Annual Review of Biochemistry
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Annual Review of Biochemistry 83 (1), 317-340, 2014-06-02
Annual Reviews