Rickettsiella massiliensis (DSM 23381, CSUR P99, DSM 233381)

Name: Rickettsiella massiliensis (DSM 23381, CSUR P99, DSM 233381)
Creator: BacDive
License: http://creativecommons.org/licenses/by/4.0/

BacDive ID 3248

Type strain

Strain Designation 20B, URRIELLA NHT 117

Culture col. no. DSM 23381 CSUR P99 DSM 233381 20B URRIELLA NHT 117

NCBI tax ID(s) 676517

Special Collections DSMZ

History DSMZ <- O. Mediannikov, Unité des Rickettsies, Univ. Méditerranée, Marseille, France; URRIELLA NHT 117 <- O. Mediannikov and Z. Sekeyová

Links

Rickettsiella massiliensis 20B is a bacterium that was isolated from hard tick Ixodes ricinus.

genome sequence 16S sequence Bacteria

Name and taxonomic classification

SI-ID 397518

DSM 23381

@ref 20215

Last LPSN update 2026-05-29 08:25:40

Domain Bacteria

Phylum Pseudomonadota

Class Gammaproteobacteria

Order Legionellales

Family Coxiellaceae

Genus Rickettsiella

Species Rickettsiella massiliensis

Full scientific name Rickettsiella massiliensis (Mediannikov et al. 2011) Saini and Gupta 2021

Synonyms (1)

Diplorickettsia massiliensis

Morphology

Cell morphology

@ref	Gram stain	Confidence
125438	negative	96.495

Colony morphology

16817

Incubation period3-7 days

Culture and growth conditions

Culture medium

@ref	Name	Growth	Medium link	Composition
16817	XTC-2 MEDIUM (DSMZ Medium 1311)		Medium recipe at MediaDive	Name: XTC-2 MEDIUM (DSMZ Medium 1311) Composition: Leibovitz's L-15 medium Fetal bovine serum Tryptose-phosphate

Culture temp

@ref	Growth	Type	Temperature (°C)
16817	positive	growth	28

Physiology and metabolism

Spore formation

@ref	Spore formation	Confidence
125438		93.053

Isolation, sampling and environmental information

Isolation source categories

Cat1	Cat2	Cat3
#Host	#Arthropoda	#Insecta

Isolation

@ref	Sample type	Host species	Geographic location	Country	Country ISO 3 Code	Continent
16817	hard tick Ixodes ricinus	Ixodes ricinus	Southeastern Slovakia, Rovinka Forest	Slovakia	SVK	Europe

Taxonmaps

69479

Global distribution of 16S sequence GQ857549 (>99% sequence identity) for Diplorickettsia massiliensis subclade from Microbeatlas

Aquatic Samples	1265
Soil Samples	291
Animal Samples	806
Plant Samples	130
Total Samples	2492

Interaction and safety

Risk assessment

@ref	Pathogenicity human	Biosafety level	Biosafety level comment
16817	yes, in single cases	1	Risk group (German classification) According to TRBA 466

Sequence information

Genome sequences

@ref	Description	Assembly level	INSDC accession	BV-BRC accession	IMG accession	NCBI tax ID	Score
66792	ASM25739v1 assembly for Rickettsiella massiliensis 20B	contig	GCA_000257395	1156986.8	2548876986	1156986	49.17

16S sequences

@ref	Description	Accession	Length	Database	NCBI tax ID
16817	Diplorickettsia massiliensis strain 20B 16S ribosomal RNA (rrs) gene, partial sequence	GQ857549	1488		1156986

GC content

@ref	GC-content (mol%)	Method
16817	37.88	genome sequence analysis
16817	42.14
16817	46.0

Genome-based predictions

Predictions

Predictions from bacterial phenotypic traits through improved machine learning using high-quality, curated datasets based on: Rickettsiella massiliensis 20B 20B
NCBI: GCA_000257395.1

@ref	Trait	Model	Prediction	Confidence in %	In training data
125438	gram-positive	gram-positiveⓘ	no	96.50	no
125438	anaerobic	anaerobicⓘ	no	83.89	no
125438	aerobic	aerobicⓘ	no	63.44	no
125438	spore-forming	spore-formingⓘ	no	93.05	no
125438	thermophilic	thermophileⓘ	no	88.00	no
125438	flagellated	motile2+ⓘ	no	87.93	no

Literature

References

#16817	Leibniz Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH ; Curators of the DSMZ; DSM 23381
#20215	Parte, A.C., Sardà Carbasse, J., Meier-Kolthoff, J.P., Reimer, L.C. and Göker, M.: List of Prokaryotic names with Standing in Nomenclature (LPSN) moves to the DSMZ. IJSEM ( DOI 10.1099/ijsem.0.004332 )
#66792	Julia Koblitz, Joaquim Sardà, Lorenz Christian Reimer, Boyke Bunk, Jörg Overmann: Automatically annotated for the DiASPora project (Digital Approaches for the Synthesis of Poorly Accessible Biodiversity Information) .
#69479	João F Matias Rodrigues, Janko Tackmann,Gregor Rot, Thomas SB Schmidt, Lukas Malfertheiner, Mihai Danaila,Marija Dmitrijeva, Daniela Gaio, Nicolas Näpflin and Christian von Mering. University of Zurich.: MicrobeAtlas 1.0 beta .
#125438	Julia Koblitz, Lorenz Christian Reimer, Rüdiger Pukall, Jörg Overmann: Predicting bacterial phenotypic traits through improved machine learning using high-quality, curated datasets. 2024 ( DOI 10.1101/2024.08.12.607695 )
#126262	A. Lissin, I. Schober, J. F. Witte, H. Lüken, A. Podstawka, J. Koblitz, B. Bunk, P. Dawyndt, P. Vandamme, P. de Vos, J. Overmann, L. C. Reimer: StrainInfo—the central database for linked microbial strain identifiers. ( DOI 10.1093/database/baaf059 )

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