Name: Methylocaldum gracile (ex Romanovskaya et al. 1978) Bodrossy et al. 1998

Category: Species

Proposed as: sp. nov., nom. rev.

Etymology: gra’ci.le. L. neut. adj. gracile, slim, slender, thin, synonym Methylomonas gracilis (Romanovskaya et al. 1978a, b)

Pronunciation (Latin), gender: … GRA-ki-le, neuter

Type strain: NCIMB 11912; VKM-14L

Conduct genome-based taxonomy at

16S rRNA gene: U89298 Analyse FASTA

Effective publication: Bodrossy L, Holmes EM, Holmes AJ, Kovacs KL, Murrell JC. Analysis of 16S rRNA and methane monooxygenase gene sequences reveals a novel group of thermotolerant and thermophilic methanotrophs, Methylocaldum gen. nov. Arch Microbiol 1997; 168:493-503. 🇬🇧

IJSEM list: Anonymous. Validation list no. 66. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1998; 48:631-632.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 9 times in PubMed until 2025-06-04.
  • 🧍 Nom. rev. / basonym "Methylomonas gracilis". Publication: Romanovskaia VA, Malashenko IuR, Bogachenko VN. [Refinement of the diagnosis of the genera and species of methane-using bacteria]. Mikrobiologiia 1978; 47:120-130.
  • 🧍 In Validation List no. 66, the type strain VKM-14L is erroneously cited as 14L. Publication: Euzeby JP, Kudo T. Corrigenda to the validation lists. Int J Syst Evol Microbiol 2001; 51:1933-1938. 🇫🇷

Parent taxon: Methylocaldum Bodrossy et al. 1998

Assigned by: Bodrossy L, Holmes EM, Holmes AJ, Kovacs KL, Murrell JC. Analysis of 16S rRNA and methane monooxygenase gene sequences reveals a novel group of thermotolerant and thermophilic methanotrophs, Methylocaldum gen. nov. Arch Microbiol 1997; 168:493-503. 🇬🇧

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Record number: 784233