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The stress-induced ...
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Tibiletti, TaniaUmeå universitet,Kemiska institutionen,SC Synchrotron SOLEIL, AILES beamline, L’Orme des Merisiers Saint-Aubin, Gif-sur-Yvette, France
(författare)
The stress-induced SCP/HLIP family of small light-harvesting-like proteins (ScpABCDE) protects Photosystem II from photoinhibitory damages in the cyanobacterium Synechocystis sp. PCC 6803
- Artikel/kapitelEngelska2018
Förlag, utgivningsår, omfång ...
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2017-08-09
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Springer,2018
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electronicrdacarrier
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LIBRIS-ID:oai:DiVA.org:umu-143745
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-143745URI
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https://doi.org/10.1007/s11120-017-0426-3DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Small CAB-like proteins (SCPs) are single-helix light-harvesting-like proteins found in all organisms performing oxygenic photosynthesis. We investigated the effect of growth in moderate salt stress on these stress-induced proteins in the cyanobacterium Synechocystis sp. PCC 6803 depleted of Photosystem I (PSI), which expresses SCPs constitutively, and compared these cells with a PSI-less/ScpABCDE− mutant. SCPs, by stabilizing chlorophyll-binding proteins and Photosystem II (PSII) assembly, protect PSII from photoinhibitory damages, and in their absence electrons accumulate and will lead to ROS formation. The presence of 0.2 M NaCl in the growth medium increased the respiratory activity and other PSII electron sinks in the PSI-less/ScpABCDE− strain. We postulate that this salt-induced effect consumes the excess of PSII-generated electrons, reduces the pressure of the electron transport chain, and thereby prevents 1O2 production.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Rehman, Ateeq Ur
(författare)
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Vass, Imre
(författare)
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Funk, ChristianeUmeå universitet,Kemiska institutionen(Swepub:umu)chefuk04
(författare)
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Umeå universitetKemiska institutionen
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Photosynthesis Research: Springer135:1–3, s. 103-1140166-85951573-5079
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