ArticlePlant molecular biology2000
Functional analysis of the PsbX protein by deletion of the corresponding gene in Synechocystis sp. PCC 6803.
Article in Plant molecular biology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 28 citations in OpenAlex.
- Properties of Photosystem II lacking the PsbJ subunit.Photosynthesis research · 2022Article
- Structure of a CProceedings of the National Academy of Sciences of the United States of America · 2019Article
- Extensive gain and loss of photosystem I subunits in chromerid algae, photosynthetic relatives of apicomplexans.Scientific reports · 2017Article
- The effect of Silicon on photosynthesis and expression of its relevant genes in rice (Oryza sativa L.) under high-zinc stress.PloS one · 2014Article
- Structural, functional and auxiliary proteins of photosystem II.Photosynthesis research · 2013Review
- Structure, function and assembly of Photosystem II and its light-harvesting proteins.Photosynthesis research · 2004Article
- The PsbP-like protein (sll1418) of Synechocystis sp. PCC 6803 stabilises the donor side of Photosystem II.Photosynthesis researchArticle
- Evidence for a stable association of Psb30 (Ycf12) with photosystem II core complex in the cyanobacterium Synechocystis sp. PCC 6803.Photosynthesis researchArticle
- Association of small CAB-like proteins (SCPs) of Synechocystis sp. PCC 6803 with Photosystem II.Photosynthesis researchArticle
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1 author at 1 institution in 1 country.
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Abstract
The psbX gene (sml0002) coding for a 4.1 kDa protein in Photosystem II of plants and cyanobacteria was deleted in both wild type and in a Photosystem I-less mutant of the cyanobacterium Synechocystis sp. PCC 6803. Polymerase chain reaction and sequencing analysis showed that the mutants had completely segregated. Deletion of the PsbX protein does not seem to influence growth rate, electron transport or water oxidation ability. Whereas a high light induction of the psbX mRNA could be observed in wild type, deletion of the gene did not lead to high light sensibility. Light saturation measurements and 77K fluorescence measurements indicated a minor disconnection of the antenna in the deletion mutant. Furthermore, fluorescence induction measurements as well as immuno-staining of the D1 protein showed that the amount of Photosystem II complexes in the mutants was reduced by 30%. Therefore, PsbX does not seem to be necessary for the Photosystem II electron transport, but directly or indirectly involved in the regulation of the amount of functionally active Photosystem II centres in Synechocystis sp. PCC 6803.
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