Chlorophyll f synthesis by a super-rogue photosystem II complex
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F20%3A00524548" target="_blank" >RIV/61388971:_____/20:00524548 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s41477-020-0616-4" target="_blank" >https://www.nature.com/articles/s41477-020-0616-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41477-020-0616-4" target="_blank" >10.1038/s41477-020-0616-4</a>
Alternative languages
Result language
angličtina
Original language name
Chlorophyll f synthesis by a super-rogue photosystem II complex
Original language description
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.nThe 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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10606 - Microbiology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Plants
ISSN
2055-026X
e-ISSN
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Volume of the periodical
6
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
238-244
UT code for WoS article
000519577200015
EID of the result in the Scopus database
2-s2.0-85081990201