Thiodictyon

Thiodictyon
Scientific classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Chromatiales
Family: Chromatiaceae
Genus: Thiodictyon
Sergei Winogradsky 1888
Species
  • Thiodictyon elegans Sergei Winogradsky 1888
  • Thiodictyon bacillosum (Winogradsky 1888) Pfennig and Truper 1971
  • "Ca. T. syntrophicum" Luedin et al 2018
  • "Ca. T. intracellulare" Muñoz-Gómez et al 2021

Thiodictyon is a genus of gram-negative bacterium classified within purple sulfur bacteria (PSB).

  • T. elegans forms "netlike aggregates under certain culture conditions." It is obligately phototrophic and strictly anaerobic.
  • T. bacillosum does not form netlike aggregates, only clumps.
  • "Ca. T. syntrophicum" grows best under micro-oxic and low light conditions. There has only been one successful enrichment of "Ca. T. syntrophicum"; "Ca. T. syntrophicum" strain Cad16T.
  • "Ca. T. intracellulare" is reported in 2021 as a symbiont of Pseudoblepharisma tenue. It has lost a great portion of its genome, including known genes for sulfur dissimilation, but the remaining sequence place it quite close to "Ca. T. syntrophicum".
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