Name: Pleomorphomonas diazotrophica Madhaiyan et al. 2013

Category: Species

Proposed as: sp. nov.

Etymology: di.a.zo.tro’phi.ca. Gr. adv. dis, twice, doubly (also Latin adjective); N.L. neut. n. azotum, nitrogen; N.L. pref. diazo-, pertaining to dinitrogen (in compound words); N.L. fem. adj. trophica, nursing, tending; from Gr. fem. adj. trophikê; N.L. fem. adj. diazotrophica, growing on dinitrogen, isolated from root tissue of Jatropha curcas L.

Pronunciation, gender: di-a-zo-TRO-p^hi-ka, feminine

Type strain: DSM 25022; KACC 16233; R5-392

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: JQ346801 Analyse FASTA

Valid publication: Madhaiyan M, Jin TY, Roy JJ, Kim SJ, Weon HY, Kwon SW, Ji L. Pleomorphomonas diazotrophica sp. nov., an endophytic N-fixing bacterium isolated from root tissue of Jatropha curcas L. Int J Syst Evol Microbiol 2013; 63:2477-2483.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 63, part 7 of the IJSEM. Int J Syst Evol Microbiol 2013; 63:3549-3550.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • 😷 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 2 times in PubMed until 2025-06-04.

Parent taxon: Pleomorphomonas Xie and Yokota 2005

Assigned by: Madhaiyan M, Jin TY, Roy JJ, Kim SJ, Weon HY, Kwon SW, Ji L. Pleomorphomonas diazotrophica sp. nov., an endophytic N-fixing bacterium isolated from root tissue of Jatropha curcas L. Int J Syst Evol Microbiol 2013; 63:2477-2483.

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Record number: 790932