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Chlorophyll f synthesis by a super-rogue photosystem II complex
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SYSNO ASEP 0524548 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Chlorophyll f synthesis by a super-rogue photosystem II complex Author(s) Trinugroho, J.P. (GB)
Bečková, Martina (MBU-M) RID
Shao, S.X. (GB)
Yu, J.F. (GB)
Zhao, Z.Y. (GB)
Murray, J. W. (GB)
Sobotka, Roman (MBU-M) RID, ORCID
Komenda, Josef (MBU-M) RID, ORCID
Nixon, P.J. (GB)Source Title Nature Plants - ISSN 2055-026X
Roč. 6, č. 3 (2020), s. 238-244Number of pages 7 s. Language eng - English Country GB - United Kingdom Keywords inner antenna cp47 ; global food demand ; d1 protein Subject RIV EE - Microbiology, Virology OECD category Microbiology R&D Projects GX19-29225X GA ČR - Czech Science Foundation (CSF) LO1416 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support MBU-M - RVO:61388971 UT WOS 000519577200015 EID SCOPUS 85081990201 DOI 10.1038/s41477-020-0616-4 Annotation Certain cyanobacteria synthesize chlorophyll molecules (Chl d and Chl f) that absorb in the far-red region of the solar spectrum, thereby extending the spectral range of photosynthetically active radiation(1,2). The synthesis and introduction of these far-red chlorophylls into the photosynthetic apparatus of plants might improve the efficiency of oxygenic photosynthesis, especially in far-red enriched environments, such as in the lower regions of the canopy(3). Production of Chl f requires the ChlF subunit, also known as PsbA4 (ref. (4)) or super-rogue D1 (ref. (5)), a paralogue of the D1 subunit of photosystem II (PSII) which, together with D2, bind cofactors involved in the light-driven oxidation of water. Current ideas suggest that ChlF oxidizes Chl a to Chl f in a homodimeric ChlF reaction centre (RC) complex and represents a missing link in the evolution of the heterodimeric D1/D2 RC of PSII (refs. (4,6)). However, unambiguous biochemical support for this proposal is lacking. Here, we show that ChlF can substitute for D1 to form modified PSII complexes capable of producing Chl f. Remarkably, mutation of just two residues in D1 converts oxygen-evolving PSII into a Chl f synthase. Overall, we have identified a new class of PSII complex, which we term 'super-rogue' PSII, with an unexpected role in pigment biosynthesis rather than water oxidation.
The cyanobacterial chlorophyll, Chl f, absorbs far-red light. Mutation of two residues in a subunit of photosystem II converts it to a Chl f synthase. This 'super-rogue' photosystem might improve photosynthetic efficiency in low light.Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2021 Electronic address https://www.nature.com/articles/s41477-020-0616-4
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