ArticleProceedings of the National Academy of Sciences of the United States of America1993
Rapid interchange between two distinct forms of cyanobacterial photosystem II reaction-center protein D1 in response to photoinhibition.
Article in Proceedings of the National Academy of Sciences of the United States of America, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.
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46 citing papers in PubMed, 115 citations in OpenAlex.
- Microscopic basis of reaction center modulation in PsbA variants of photosystem II.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- Triplet states in the reaction center of Photosystem II.Chemical science · 2023Article
- Comparative Thermophysiology of MarineFrontiers in microbiology · 2022Article
- Regulation of PSII function in Cyanothece sp. ATCC 51142 during a light-dark cycle.Photosynthesis research · 2019Article
- Frequency doubling in the cyanobacterial circadian clock.Molecular systems biology · 2016Article
- Natural isoforms of the Photosystem II D1 subunit differ in photoassembly efficiency of the water-oxidizing complex.Photosynthesis research · 2016Article
- The Use of Advanced Mass Spectrometry to Dissect the Life-Cycle of Photosystem II.Frontiers in plant science · 2016Review
- A fresh look at the evolution and diversification of photochemical reaction centers.Photosynthesis research · 2015Review
- Modified molecular interactions of the pheophytin and plastoquinone electron acceptors in photosystem II of chlorophyll D-containing Acaryochloris marina as revealed by FTIR spectroscopy.Photosynthesis research · 2015Article
- Prevalence of viral photosynthetic and capsid protein genes from cyanophages in two large and deep perialpine lakes.Applied and environmental microbiology · 2013Article
- Natural variants of photosystem II subunit D1 tune photochemical fitness to solar intensity.The Journal of biological chemistry · 2013Article
- Heat-stress and light-stress induce different cellular pathologies in the symbiotic dinoflagellate during coral bleaching.PloS one · 2013Article
- Environment of TyrZ in photosystem II from Thermosynechococcus elongatus in which PsbA2 is the D1 protein.The Journal of biological chemistry · 2012Article
- Light history influences the response of the marine cyanobacterium Synechococcus sp. WH7803 to oxidative stress.Plant physiology · 2011Article
- Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis.Cellular and molecular life sciences : CMLS · 2009Review
- Responses of a thermophilic Synechococcus isolate from the microbial mat of Octopus Spring to light.Applied and environmental microbiology · 2007Article
- Prevalence and evolution of core photosystem II genes in marine cyanobacterial viruses and their hosts.PLoS biology · 2006Article
- Carbon status constrains light acclimation in the cyanobacterium Synechococcus elongatus.Plant physiology · 2004Article
- Photoinhibition - a historical perspective.Photosynthesis research · 2003Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We have studied photoinhibition of photosynthesis in the cyanobacterium Synechococcus sp. PCC 7942, which possesses two distinct forms of the photosystem II reaction-center protein D1 (D1:1 and D1:2). We report here that when cells adapted to a growth irradiance of 50 mumol.m-2.s-1 are exposed to an irradiance of 500 mumol.m-2.s-1, the normally predominant D1 form (D1:1) is rapidly replaced with the alternative D1:2. This interchange is not only complete within the first hour of photoinhibition but is also fully reversible once cells are returned to 50 mumol.m-2 x s-1. By using a mutant that synthesizes only D1:1, we show that the failure to replace D1:1 with D1:2 during photoinhibition results in severe loss of photosynthetic activity as well as a diminished capacity to recover after the stress period. We believe that this interchange between D1 forms may constitute an active component in a protection mechanism unique among photosynthetic organisms that enables cyanobacteria to effectively cope with and recover from photoinhibition.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.