Ana Durán-Viseras, Célia M. Manaia, Ivone Vaz-Moreira, Olga C. Nunes

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


Pusillimonas (Pu.sil.li.mo'nas. L. masc. adj. pusillus very small/minute; Gr. fem. n. monas unit/monad; N.L. fem. n. Pusillimonas very small monad/unicell, referring to the small size of cells and colonies of the type species). Proteobacteria / Betaproteobacteria / Burkholderiales / Alcaligenaceae / Pusillimonas. Rods, Gram-stain-negative, and nonmotile or motile by polar or lateral flagella. Strictly aerobic. The optimal growth temperature range is 30–37°C. Catalase and cytochrome c oxidase tests are positive in most species. The major respiratory quinone is ubiquinone Q-8. The cellular fatty acid composition is characterized by the predominance of C16:0. The other most abundant fatty acids (C17:0 cyclo, C19:0 cyclo ω8c, and C18:0) vary among species. The polar lipids composition comprises phosphatidylglycerol, diphosphatidylglycerol, and phosphatidylethanolamine as well as some unidentified amino- and phospholipids. Phylogenetically, belongs to the family Alcaligenaceae. DNA G + C content (mol%): 53.1–63.3 (Tm/HPLC) and 53.4–63.1 (WGS). Type species: Pusillimonas noertemannii Stolz et al. 2005VP.
Original languageEnglish
Title of host publicationBergey’s manual of systematics of archaea and bacteria
PublisherJohn Wiley & Sons, Ltd
Number of pages39
ISBN (Electronic)9781118960608
Publication statusPublished - 9 Mar 2022


  • Pusillimonas
  • Alcaligenaceae
  • Soil
  • Sludge
  • Enrichment culture


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