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Subcellular pigment distribution is altered under far-red light acclimation in cyanobacteria that contain chlorophyll $$\mathcal{f}$$

Journal Article · · Photosynthesis Research
Far-Red Light (FRL) acclimation is a process that has been observed in cyanobacteria and algae that can grow solely on light above 700 nm. The acclimation to FRL results in rearrangement and synthesis of new pigments and pigment-protein complexes. Here, cyanobacteria containing chlorophyll $$\mathcal{f}$$,Synechococcus sp. PCC 7335 and Halomicronema hongdechloris, were imaged as live cells with confocal microscopy. H. hongdechloris was further studied with hyperspectral confocal fluorescence microscopy (HCFM) and freeze-substituted thin-section transmission electron microscopy (TEM). Under FRL, phycocyanin-containing complexes and chlorophyll-containing complexes were determined to be physically separated and the synthesis of red-form phycobilisome and Chl $$\mathcal{f}$$ was increased. The timing of these responses was observed. The heterogeneity and eco-physiological response of the cells was noted. Additionally, a gliding motility for H. hongdechloris is reported.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Washington Univ., St. Louis, MO (United States). Photosynthetic Antenna Research Center (PARC)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC04-94AL85000; NA0003525; SC0001035
OSTI ID:
1472251
Alternate ID(s):
OSTI ID: 1469897
Report Number(s):
SAND2018--9774J; 667651
Journal Information:
Photosynthesis Research, Journal Name: Photosynthesis Research Journal Issue: 2 Vol. 134; ISSN 0166-8595
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (10)

Genome and proteome of the chlorophyll f-producing cyanobacterium Halomicronema hongdechloris: adaptative proteomic shifts under different light conditions journal March 2019
Introducing an Arabidopsis thaliana Thylakoid Thiol/Disulfide-Modulating Protein Into Synechocystis Increases the Efficiency of Photosystem II Photochemistry journal October 2019
Photosynthesis supported by a chlorophyll f-dependent, entropy-driven uphill energy transfer in Halomicronema hongdechloris cells adapted to far-red light journal July 2018
Excitation energy transfer in the far-red absorbing violaxanthin/vaucheriaxanthin chlorophyll a complex from the eustigmatophyte alga FP5 journal January 2019
Cellular localization of tolyporphins, unusual tetrapyrroles, in a microbial photosynthetic community determined using hyperspectral confocal fluorescence microscopy journal March 2019
Far-red light acclimation in diverse oxygenic photosynthetic organisms journal June 2019
Substantial near-infrared radiation-driven photosynthesis of chlorophyll f -containing cyanobacteria in a natural habitat posted_content August 2019
Protein arrangement factor: a new photosynthetic parameter characterizing the organization of thylakoid membrane proteins journal March 2019
Photochemistry beyond the red limit in chlorophyll f–containing photosystems journal June 2018
Substantial near-infrared radiation-driven photosynthesis of chlorophyll f-containing cyanobacteria in a natural habitat journal January 2020

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