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Dinitrogen fixation in a unicellular chlorophyll d-containing cyanobacterium. / Pfreundt, U.; Stal, L.J.; Voss, B.; Hess, W.R.

In: ISME Journal, Vol. 6, No. 7, 2012, p. 1367-1377.

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Pfreundt, U, Stal, LJ, Voss, B & Hess, WR 2012, 'Dinitrogen fixation in a unicellular chlorophyll d-containing cyanobacterium' ISME Journal, vol. 6, no. 7, pp. 1367-1377. https://doi.org/10.1038/ismej.2011.199

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Author

Pfreundt, U. ; Stal, L.J. ; Voss, B. ; Hess, W.R. / Dinitrogen fixation in a unicellular chlorophyll d-containing cyanobacterium. In: ISME Journal. 2012 ; Vol. 6, No. 7. pp. 1367-1377.

BibTeX

@article{ef073dd282244e37a8891bc588f2451e,
title = "Dinitrogen fixation in a unicellular chlorophyll d-containing cyanobacterium",
abstract = "Marine cyanobacteria of the genus Acaryochloris are the only known organisms that use chlorophyll d as a photosynthetic pigment. However, based on chemical sediment analyses, chlorophyll d has been recognized to be widespread in oceanic and lacustrine environments. Therefore it is highly relevant to understand the genetic basis for different physiologies and possible niche adaptation in this genus. Here we show that unlike all other known isolates of Acaryochloris, the strain HICR111A, isolated from waters around Heron Island, Great Barrier Reef, possesses a unique genomic region containing all the genes for the structural and enzymatically active proteins of nitrogen fixation and cofactor biosynthesis. Their phylogenetic analysis suggests a close relation to nitrogen fixation genes from certain other marine cyanobacteria. We show that nitrogen fixation in Acaryochloris sp. HICR111A is regulated in a light–dark-dependent fashion. We conclude that nitrogen fixation, one of the most complex physiological traits known in bacteria, might be transferred among oceanic microbes by horizontal gene transfer more often than anticipated so far. Our data show that the two powerful processes of oxygenic photosynthesis and nitrogen fixation co-occur in one and the same cell also in this branch of marine microbes and characterize Acaryochloris as a physiologically versatile inhabitant of an ecological niche, which is primarily driven by the absorption of far-red light.",
keywords = "international",
author = "U. Pfreundt and L.J. Stal and B. Voss and W.R. Hess",
note = "Reporting year: 2012 Metis note: 5315; CEME",
year = "2012",
doi = "10.1038/ismej.2011.199",
language = "English",
volume = "6",
pages = "1367--1377",
journal = "ISME Journal",
issn = "1751-7362",
number = "7",

}

RIS

TY - JOUR

T1 - Dinitrogen fixation in a unicellular chlorophyll d-containing cyanobacterium

AU - Pfreundt, U.

AU - Stal, L.J.

AU - Voss, B.

AU - Hess, W.R.

N1 - Reporting year: 2012 Metis note: 5315; CEME

PY - 2012

Y1 - 2012

N2 - Marine cyanobacteria of the genus Acaryochloris are the only known organisms that use chlorophyll d as a photosynthetic pigment. However, based on chemical sediment analyses, chlorophyll d has been recognized to be widespread in oceanic and lacustrine environments. Therefore it is highly relevant to understand the genetic basis for different physiologies and possible niche adaptation in this genus. Here we show that unlike all other known isolates of Acaryochloris, the strain HICR111A, isolated from waters around Heron Island, Great Barrier Reef, possesses a unique genomic region containing all the genes for the structural and enzymatically active proteins of nitrogen fixation and cofactor biosynthesis. Their phylogenetic analysis suggests a close relation to nitrogen fixation genes from certain other marine cyanobacteria. We show that nitrogen fixation in Acaryochloris sp. HICR111A is regulated in a light–dark-dependent fashion. We conclude that nitrogen fixation, one of the most complex physiological traits known in bacteria, might be transferred among oceanic microbes by horizontal gene transfer more often than anticipated so far. Our data show that the two powerful processes of oxygenic photosynthesis and nitrogen fixation co-occur in one and the same cell also in this branch of marine microbes and characterize Acaryochloris as a physiologically versatile inhabitant of an ecological niche, which is primarily driven by the absorption of far-red light.

AB - Marine cyanobacteria of the genus Acaryochloris are the only known organisms that use chlorophyll d as a photosynthetic pigment. However, based on chemical sediment analyses, chlorophyll d has been recognized to be widespread in oceanic and lacustrine environments. Therefore it is highly relevant to understand the genetic basis for different physiologies and possible niche adaptation in this genus. Here we show that unlike all other known isolates of Acaryochloris, the strain HICR111A, isolated from waters around Heron Island, Great Barrier Reef, possesses a unique genomic region containing all the genes for the structural and enzymatically active proteins of nitrogen fixation and cofactor biosynthesis. Their phylogenetic analysis suggests a close relation to nitrogen fixation genes from certain other marine cyanobacteria. We show that nitrogen fixation in Acaryochloris sp. HICR111A is regulated in a light–dark-dependent fashion. We conclude that nitrogen fixation, one of the most complex physiological traits known in bacteria, might be transferred among oceanic microbes by horizontal gene transfer more often than anticipated so far. Our data show that the two powerful processes of oxygenic photosynthesis and nitrogen fixation co-occur in one and the same cell also in this branch of marine microbes and characterize Acaryochloris as a physiologically versatile inhabitant of an ecological niche, which is primarily driven by the absorption of far-red light.

KW - international

U2 - 10.1038/ismej.2011.199

DO - 10.1038/ismej.2011.199

M3 - Article

VL - 6

SP - 1367

EP - 1377

JO - ISME Journal

JF - ISME Journal

SN - 1751-7362

IS - 7

ER -

ID: 299408