A red-shifted chlorophyll

Min Chen*, Martin Schliep, Robert D. Willows, Zheng Li Cai, Brett A. Neilan, Hugo Scheer

*Corresponding author for this work

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289 Citations (Scopus)

Abstract

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 (C 55H70O6N4Mg). This finding suggests that oxygenic photosynthesis can be extended further into the infrared region and may open associated bioenergy applications.

Original languageEnglish
Pages (from-to)1318-1319
Number of pages2
JournalScience
Volume329
Issue number5997
DOIs
Publication statusPublished - 10 Sep 2010

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    Chen, M., Schliep, M., Willows, R. D., Cai, Z. L., Neilan, B. A., & Scheer, H. (2010). A red-shifted chlorophyll. Science, 329(5997), 1318-1319. https://doi.org/10.1126/science.1191127