Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium palustre Torkko et al. 2002.
Member of the Mycobacterium simiae complex.
Colonies on eggbased media and Middlebrook agar are smooth, scotochromogenic
at 36 ºC and photochromogenic or scotochromogenic at 42 ºC. Colony size is
reached in 4 weeks at 36 ºC. Growth occurs at temperatures between 30 and 42 ºC,
optimally at 36 ºC. No growth at 22 or 25 ºC. Growth at 45 ºC is detected from a heavy
inoculum on Middlebrook agar after 5-6 weeks. Visible growth from a dilute inoculum
requires 2-3 weeks.
Isolated from water samples collected from Finnish streams, sputum samples, a submandibular lymph node biopsy of a child, and
from submandibular tissue of pigs.
Potentially pathogenic. Causative agents of peadiatric lymphadenitis.
- John G. Magee and Alan C. Ward 2012. Family III. Mycobacteriaceae Chester 1897, 63AL in Bergey’s Manual of Systematic
Bacteriology, Volume Five The Actinobacteria, Part A, Michael Goodfellow & al. (editors), 312-375.
- Torkko P, Suomalainen S, Iivanainen E, Tortoli E, Suutari M, Seppanen J, Paulin L, Katila ML. Mycobacterium palustre sp. nov., a
potentially pathogenic, slowly growing mycobacterium isolated from clinical and veterinary specimens and from Finnish stream
waters. Int J Syst Evol Microbiol 2002; 52:1519-1525.
- Turenne CY, Thibert L, Williams K, Burdz TV, Cook VJ, Wolfe JN, Cockcroft DW, Kabani A. Mycobacterium saskatchewanense sp.
nov., a novel slowly growing scotochromogenic species from human clinical isolates related to Mycobacterium interjectum and
Accuprobe-positive for Mycobacterium avium complex. Int J Syst Evol Microbiol 2004; 54:659-667.
- Angelika Agdestein, Ingrid Olsen, Anne Jorgensen, Berit Djonne & Tone B Johansen. Novel insights into transmission routes of
Mycobacterium avium in pigs and possible implications for human health. Vet Res 45, 46 (2014). https://doi.org/10.1186/1297-
- Stephen Berger 2019. GIDEON Guide to Medically Important Bacteria, eBook.
Positive results for acid phosphatase, thermotolerant catalase (68 ºC), pyrazinamidase, Tween 80 hydrolysis, and urease.
Negative results for arylsulfatase (3 days), semi-quantitative catalase, alpha- and beta-galactosidase.
Variable results for arylsulfatase (10 days), nitrate reduction and alkaline phosphatase.
(c) Costin Stoica