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Species Johnsonella ignava
Name: Johnsonella ignava Moore and Moore 1994
Etymology: i.gna’va. L. fem. adj. ignava, inactive, lazy, sluggish, because of the inactivity of the organism in vitro
Pronunciation (Latin), gender: … i-N͡GNA-wa, feminine
Type strain: ATCC 51276; VPI D94B-12
Conduct genome-based taxonomy at
16S rRNA gene:
X87152
Analyse
FASTA
Valid publication:
Moore LV, Moore WE. Oribaculum catoniae gen. nov., sp. nov.; Catonella morbi gen. nov., sp. nov.; Hallella seregens gen. nov., sp. nov.; Johnsonella ignava gen. nov., sp. nov.; and Dialister pneumosintes gen. nov., comb. nov., nom. rev., Anaerobic gram-negative bacilli from the human gingival crevice. Int J Syst Bacteriol 1994; 44:187-192. 
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IJSEM list:
Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 44, part 2 of the IJSB. Int J Syst Bacteriol 1994; 44:596.
Nomenclatural status: validly published under the ICNP
Taxonomic status: correct name (and explicitly recommended for medical use)
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Notes:
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🥇 Nomenclatural type of the genus Johnsonella Moore and Moore 1994.
Publication:
Moore LV, Moore WE. Oribaculum catoniae gen. nov., sp. nov.; Catonella morbi gen. nov., sp. nov.; Hallella seregens gen. nov., sp. nov.; Johnsonella ignava gen. nov., sp. nov.; and Dialister pneumosintes gen. nov., comb. nov., nom. rev., Anaerobic gram-negative bacilli from the human gingival crevice. Int J Syst Bacteriol 1994; 44:187-192. 🇺🇸
- 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2. — 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 7 times in PubMed until 2025-06-04.
- 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
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🥇 Nomenclatural type of the genus Johnsonella Moore and Moore 1994.
Publication:
Moore LV, Moore WE. Oribaculum catoniae gen. nov., sp. nov.; Catonella morbi gen. nov., sp. nov.; Hallella seregens gen. nov., sp. nov.; Johnsonella ignava gen. nov., sp. nov.; and Dialister pneumosintes gen. nov., comb. nov., nom. rev., Anaerobic gram-negative bacilli from the human gingival crevice. Int J Syst Bacteriol 1994; 44:187-192.
Parent taxon: Johnsonella Moore and Moore 1994
Assigned by:
Moore LV, Moore WE. Oribaculum catoniae gen. nov., sp. nov.; Catonella morbi gen. nov., sp. nov.; Hallella seregens gen. nov., sp. nov.; Johnsonella ignava gen. nov., sp. nov.; and Dialister pneumosintes gen. nov., comb. nov., nom. rev., Anaerobic gram-negative bacilli from the human gingival crevice. Int J Syst Bacteriol 1994; 44:187-192. 🇺🇸
Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/johnsonella-ignavaLink copied to clipboard
Record number: 784041
This LPSN page was printed on 2026-02-11 20:56:53