title: Picrophilaceae
text: # Picrophilaceae
  
  In taxonomy, the Picrophilaceae are a family of microbes within Thermoplasmatales.
  
  ## Morphology and ecology
  
  The cells are round in shape, thermophilic, heterotrophic, and obligately aerobic. This species is hyperacidophilic, with an optimal pH of 0.7. Its optimal temperature is 60 °C. It has been isolated from fumaroles, acidic sediments, dry solfataric fields, and hot springs in Hokkaidō, Japan.
  
  ## Phylogeny
  
  The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI).
  
  | 16S rRNA based LTP_06_2022 | 53 marker proteins based GTDB 08-RS214 |
  | - | - |
  | Thermoplasmatales Thermoplasmataceae Thermoplasma Thermogymnomonas Cuniculiplasmataceae Cuniculiplasma Picrophilaceae Picrophilus Ferroplasmataceae Acidiplasma Ferroplasma | Thermoplasmatales Thermoplasma Cuniculiplasma Thermogymnomonas Picrophilus Acidiplasma Ferroplasma Thermoplasmataceae |
  