دورية أكاديمية
أعرض في EDS

Strain specific differences in rates of Photosystem II repair in picocyanobacteria correlate to differences in FtsH protein levels and isoform expression patterns.

التفاصيل البيبلوغرافية
العنوان: Strain specific differences in rates of Photosystem II repair in picocyanobacteria correlate to differences in FtsH protein levels and isoform expression patterns.
المؤلفون: Bonisteel EM; Department of Chemistry & Biochemistry, Mount Allison University, Sackville, New Brunswick, Canada., Turner BE; Department of Chemistry & Biochemistry, Mount Allison University, Sackville, New Brunswick, Canada., Murphy CD; Department of Chemistry & Biochemistry, Mount Allison University, Sackville, New Brunswick, Canada., Melanson JR; Department of Chemistry & Biochemistry, Mount Allison University, Sackville, New Brunswick, Canada., Duff NM; Department of Biology, Mount Allison University, Sackville, New Brunswick, Canada., Beardsall BD; Department of Chemistry & Biochemistry, Mount Allison University, Sackville, New Brunswick, Canada., Xu K; Department of Biology, Mount Allison University, Sackville, New Brunswick, Canada.; Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China., Campbell DA; Department of Biology, Mount Allison University, Sackville, New Brunswick, Canada., Cockshutt AM; Department of Chemistry & Biochemistry, Mount Allison University, Sackville, New Brunswick, Canada.
المصدر: PloS one [PLoS One] 2018 Dec 19; Vol. 13 (12), pp. e0209115. Date of Electronic Publication: 2018 Dec 19 (Print Publication: 2018).
نوع المنشور: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
أسماء مطبوعة: Original Publication: San Francisco, CA : Public Library of Science
مواضيع طبية MeSH: Bacterial Proteins/*metabolism , Photosynthesis/*physiology , Photosystem II Protein Complex/*metabolism , Prochlorococcus/*metabolism , Synechococcus/*metabolism, Adaptation, Biological ; Bacterial Proteins/genetics ; Computational Biology ; Gene Expression ; Light ; Oxygen/metabolism ; Phylogeny ; Protein Isoforms/metabolism ; Species Specificity
مستخلص: Picocyanobacteria are the numerically dominant photoautotrophs of the oligotrophic regions of Earth's oceans. These organisms are characterized by their small size and highly reduced genomes. Strains partition to different light intensity and nutrient level niches, with differing photosynthetic apparatus stoichiometry, light harvesting machinery and susceptibility to photoinactivation. In this study, we grew three strains of picocyanobacteria: the low light, high nutrient strain Prochlorococcus marinus MIT 9313; the high light, low nutrient Prochlorococcus marinus MED 4; and the high light, high nutrient marine Synechococcus strain WH 8102; under low and high growth light levels. We then performed matched photophysiology, protein and transcript analyses. The strains differ significantly in their rates of Photosystem II repair under high light and in their capacity to remove the PsbA protein as the first step in the Photosystem II repair process. Notably, all strains remove the PsbD subunit at the same rate that they remove PsbA. When grown under low light, MIT 9313 loses active Photosystem II quickly when shifted to high light, but has no measurable capacity to remove PsbA. MED 4 and WH 8102 show less rapid loss of Photosystem II and considerable capacity to remove PsbA. MIT 9313 has less of the FtsH protease thought to be responsible for the removal of PsbA in other cyanobacteria. Furthermore, by transcript analysis the predominant FtsH isoform expressed in MIT 9313 is homologous to the FtsH 4 isoform characterized in the model strain Synechocystis PCC 6803, rather than the FtsH 2 and 3 isoforms thought to be responsible for PsbA degradation. MED 4 on the other hand shows high light inducible expression of the isoforms homologous to FtsH 2 and 3, consistent with its faster rate of PsbA removal. MIT 9313 has adapted to its low light environment by diverting resources away from Photosystem II content and repair.
Competing Interests: I have read the journal's policy and the authors of this manuscript have the following competing interests: AMC and DAC are minority owners of Environmental Proteomics NB Inc., a company that has worked with AgriSera AB to produce the antibodies and standards used in this work. Environmental Proteomics NB Inc. and AgriSera AB provided the protein standards and antibodies used in this study free of charge through an in kind contribution. This does not alter our adherence to PLOS ONE policies on sharing data and materials.
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سلسلة جزيئية: Dryad 10.5061/dryad.8dc747r
المشرفين على المادة: 0 (Bacterial Proteins)
0 (Photosystem II Protein Complex)
0 (Protein Isoforms)
S88TT14065 (Oxygen)
تواريخ الأحداث: Date Created: 20181220 Date Completed: 20190521 Latest Revision: 20200309
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC6300248
DOI: 10.1371/journal.pone.0209115
PMID: 30566504
قاعدة البيانات: MEDLINE
الوصف
تدمد:1932-6203
DOI:10.1371/journal.pone.0209115