A Red-Shifted Chlorophyll

被引：380

作者：

Chen, Min ^{[1
]}

Schliep, Martin ^{[1
]}

Willows, Robert D. ^{[2
]}

Cai, Zheng-Li ^{[3
]}

Neilan, Brett A. ^{[4
]}

Scheer, Hugo ^{[1
,5
]}

机构：

[1] Univ Sydney, Sch Biol Sci, Sydney, NSW 2006, Australia

[2] Macquarie Univ, Dept Chem & Biomol Sci, N Ryde, NSW 2109, Australia

[3] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia

[4] Univ New S Wales, Sch Biotechnol & Biomol Sci, Sydney, NSW 2052, Australia

[5] Univ Munich, Dept Biol 1, D-80638 Munich, Germany

来源：

SCIENCE | 2010年 / 329卷 / 5997期

基金：

英国医学研究理事会;

关键词：

D O I：

10.1126/science.1191127

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Chlorophylls are essential for light-harvesting and energy transduction in photosynthesis. Four chemically distinct varieties have been known for the past 60 years. Here we report isolation of a fifth, which we designate chlorophyll f. Its in vitro absorption (706 nanometers) and fluorescence (722 nanometers) maxima are red-shifted compared to all other chlorophylls from oxygenic phototrophs. On the basis of the optical, mass, and nuclear magnetic resonance spectra, we propose that chlorophyll f is [2-formyl]-chlorophyll a (C55H70O6N4Mg). This finding suggests that oxygenic photosynthesis can be extended further into the infrared region and may open associated bioenergy applications.

引用

页码：1318 / 1319

页数：2

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