ArticleProceedings of the National Academy of Sciences of the United States of America2010
Antenna mixing in photosynthetic membranes from Phaeospirillum molischianum.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 33 citations in OpenAlex.
- Trade-offs between light absorption and energy transfer in a marine light-harvesting complex 2.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Elucidating interprotein energy transfer dynamics within the antenna network from purple bacteria.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Cryo-EM structure of a CaNature communications · 2020Article
- Contribution of low-temperature single-molecule techniques to structural issues of pigment-protein complexes from photosynthetic purple bacteria.Journal of the Royal Society, Interface · 2018Review
- Genome Sequence of Rhodoferax antarcticus ANT.BRMicroorganisms · 2017Article
- Chromatic acclimation and population dynamics of green sulfur bacteria grown with spectrally tailored light.Scientific reports · 2014Article
- Photosynthesis in a different light: spectro-microscopy for in vivo characterization of chloroplasts.Frontiers in plant science · 2014Article
- Draft genome sequence of the purple photosynthetic bacterium Phaeospirillum molischianum DSM120, a particularly versatile bacterium.Journal of bacteriology · 2012Article
- Gene sequencing and characterization of the light-harvesting complex 2 from thermophilic purple sulfur bacterium Thermochromatium tepidum.Photosynthesis research · 2012Article
- Differential assembly of polypeptides of the light-harvesting 2 complex encoded by distinct operons during acclimation of Rhodobacter sphaeroides to low light intensity.Photosynthesis research · 2012Article
- Differential assembly of polypeptides of the light-harvesting 2 complex encoded by distinct operons during acclimation of Rhodobacter sphaeroides to low light intensity.Photosynthesis research · 2011Article
- Forces guiding assembly of light-harvesting complex 2 in native membranes.Proceedings of the National Academy of Sciences of the United States of America · 2011Article
- Atomic force microscopy of the bacterial photosynthetic apparatus: plain pictures of an elaborate machinery.Photosynthesis researchArticle
- Single-spanning transmembrane domains in cell growth and cell-cell interactions: More than meets the eye?Cell adhesion & migrationReview
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Authors and funding
5 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We have investigated the adaptation of the light-harvesting system of the photosynthetic bacterium Phaeospirillum molischianum (DSM120) to very low light conditions. This strain is able to respond to changing light conditions by differentially modulating the expression of a family of puc operons that encode for peripheral light-harvesting complex (LH2) polypeptides. This modulation can result in a complete shift between the production of LH2 complexes absorbing maximally near 850 nm to those absorbing near 820 nm. In contradiction to prevailing wisdom, analysis of the LH2 rings found in the photosynthetic membranes during light adaptation are shown to have intermediate spectral and electrostatic properties. By chemical cross-linking and mass-spectrometry we show that individual LH2 rings and subunits can contain a mixture of polypeptides derived from the different operons. These observations show that polypeptide synthesis and insertion into the membrane are not strongly coupled to LH2 assembly. We show that the light-harvesting complexes resulting from this mixing could be important in maintaining photosynthetic efficiency during adaptation.
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