Phylogenetic and morphologic complexity of giant sulphur bacteria

Verena Salman, Jake Bailey, Andreas Teske

Research output: Contribution to journalReview article

36 Citations (Scopus)

Abstract

The large sulphur bacteria, first discovered in the early nineteenth century, include some of the largest bacteria identified to date. Individual cells are often visible to the unaided eye and can reach 750 μm in diameter. The cells usually feature light-refracting inclusions of elemental sulphur and a large internal aqueous vacuole, which restricts the cytoplasm to the outermost periphery. In some taxa, it has been demonstrated that the vacuole can also serve for the storage of high millimolar concentrations of nitrate. Over the course of the past two centuries, a wide range of morphological variation within the family Beggiatoaceae has been found. However, representatives of this clade are frequently recalcitrant to current standard microbiological techniques, including 16S rRNA gene sequencing and culturing, and a reliable classification of these bacteria is often complicated. Here we present a summary of the efforts made and achievements accomplished in the past years, and give perspectives for investigating the heterogeneity and possible evolutionary developments in this extraordinary group of bacteria.

Original languageEnglish (US)
Pages (from-to)169-186
Number of pages18
JournalAntonie van Leeuwenhoek, International Journal of General and Molecular Microbiology
Volume104
Issue number2
DOIs
StatePublished - Aug 1 2013

Fingerprint

Sulfur
Bacteria
Vacuoles
Microbiological Techniques
rRNA Genes
Nitrates
Cytoplasm
Light

Keywords

  • Beggiatoaceae
  • Classification
  • Identification
  • Morphotypes
  • Phylotypes
  • Reductive division

Cite this

Phylogenetic and morphologic complexity of giant sulphur bacteria. / Salman, Verena; Bailey, Jake; Teske, Andreas.

In: Antonie van Leeuwenhoek, International Journal of General and Molecular Microbiology, Vol. 104, No. 2, 01.08.2013, p. 169-186.

Research output: Contribution to journalReview article

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