Mesorhizobium hawassense (DSM 29666, HAMBI 3301, LMG 26968)

Name: Mesorhizobium hawassense (DSM 29666, HAMBI 3301, LMG 26968)
Creator: BacDive
License: http://creativecommons.org/licenses/by/4.0/

BacDive ID 130531

Type strain

Strain Designation AC99b

Culture col. no. DSM 29666 HAMBI 3301 LMG 26968 AC99b

NCBI tax ID(s) 1209954

Special Collections DSMZ Literature strains

History DSMZ <- LMG <- A. Willems, BCCM; AC99b

Links

Mesorhizobium hawassense AC99b is a Gram-negative, motile, rod-shaped bacterium that was isolated from root nodule Sesbania sesban.

Gram-negative motile rod-shaped genome sequence 16S sequence Bacteria

Name and taxonomic classification

SI-ID 380477

LMG 26968,HAMBI 3301,DSM 29666

@ref 20215

Last LPSN update 2026-05-29 08:37:24

Domain Bacteria

Phylum Pseudomonadota

Class Alphaproteobacteria

Order Hyphomicrobiales

Family Bartonellaceae

Genus Mesorhizobium

Species Mesorhizobium hawassense

Full scientific name Mesorhizobium hawassense Degefu et al. 2013

Morphology

Cell morphology

@ref	Gram stain	Cell length	Cell width	Cell shape	Motility
30772	negative	2.7 µm	0.3 µm	rod-shaped

Colony morphology

22039

Incubation period3-7 days

Pigmentation

30772

Productionyes

Culture and growth conditions

Culture medium

@ref	Name	Growth	Medium link	Composition
22039	RHIZOBIUM MEDIUM (DSMZ Medium 98)		Medium recipe at MediaDive	Name: RHIZOBIUM MEDIUM (DSMZ Medium 98) Composition: air-dried garden soil 80.0 g/l Agar 15.0 g/l Mannitol 10.0 g/l Yeast extract 1.0 g/l Na2CO3 0.2 g/l Distilled water
22039	R2A MEDIUM (DSMZ Medium 830)		Medium recipe at MediaDive	Name: R2A MEDIUM (DSMZ Medium 830) Composition: Agar 15.0 g/l Casamino acids 0.5 g/l Starch 0.5 g/l Glucose 0.5 g/l Proteose peptone 0.5 g/l Yeast extract 0.5 g/l K2HPO4 0.3 g/l Na-pyruvate 0.3 g/l MgSO4 x 7 H2O 0.05 g/l Distilled water

Culture temp

@ref	Growth	Type	Temperature (°C)
22039	positive	growth	30
30772	positive	growth	0-35

Culture pH

@ref	Ability	Type	PH	PH range
30772	positive	growth	4.5-10	alkaliphile

Physiology and metabolism

Oxygen tolerance

@ref	Oxygen tolerance	Confidence
125439	obligate aerobe	98.912

Spore formation

@ref	Spore formation	Confidence
125439		99.183

Metabolite utilization

@ref	Chebi-ID	Metabolite	Utilization activity	Kind of utilization tested
68369	17128 ChEBI	adipate	-	assimilation	from API 20NE
68369	29016 ChEBI	arginine	-	hydrolysis	from API 20NE
68369	17634 ChEBI	D-glucose	-	fermentation	from API 20NE
68369	27689 ChEBI	decanoate	-	assimilation	from API 20NE
30772	15740 ChEBI	formate	+	carbon source
68369	5291 ChEBI	gelatin	-	hydrolysis	from API 20NE
68369	24265 ChEBI	gluconate	-	assimilation	from API 20NE
68369	30849 ChEBI	L-arabinose	+	assimilation	from API 20NE
68369	25115 ChEBI	malate	-	assimilation	from API 20NE
30772	15792 ChEBI	malonate	+	carbon source
68369	17632 ChEBI	nitrate	+	reduction	from API 20NE
30772	17822 ChEBI	serine	+	carbon source
68369	27897 ChEBI	tryptophan	-	energy source	from API 20NE

Metabolite production

@ref	Chebi-ID	Metabolite	Production
68369	35581 ChEBI	indole		from API 20NE

Metabolite tests

@ref	Chebi-ID	Metabolite	Indole test
68369	35581 ChEBI	indole	-	from API 20NE

Enzymes

@ref	Value	Activity	Ec
68369	arginine dihydrolase	-	3.5.3.6	from API 20NE
22039	catalase	+	1.11.1.6
68369	cytochrome oxidase	+	1.9.3.1	from API 20NE
22039	cytochrome-c oxidase	+	1.9.3.1
68369	gelatinase	-		from API 20NE

API 20NE

@ref	Reduction of nitratesNO3	TRP	GLU_ Ferm	ADH (Arg)	URE	ESC	GEL	PNPG	GLU_ Assim	ARA	MNE	MAN	NAG	MAL	GNT	CAP	ADI	MLT	CIT	PAC	OX
22039	+	-	-	-	+	+	-	+	+	+	+	+	+	+	-	-	-	-	-	-	+
22039	+	-	-	-	-	-	-	-	-	+	-	-	+/-	-	-	-	-	-	-	-	not determinedn.d.

Isolation, sampling and environmental information

Isolation source categories

Cat1	Cat2	Cat3
#Host	#Plants	#Shrub (Scrub)
#Host Body-Site	#Plant	#Root nodule

Isolation

@ref	Sample type	Host species	Geographic location	Country	Country ISO 3 Code	Continent
22039	root nodule Sesbania sesban	Sesbania sesban	Wondogenet	Ethiopia	ETH	Africa

Interaction and safety

Risk assessment

@ref	Biosafety level	Biosafety level comment
22039	1	Risk group (German classification)

Sequence information

Genome sequences

@ref	Description	Assembly level	INSDC accession	BV-BRC accession	IMG accession	NCBI tax ID	Score
66792	Mesorhizobium hawassense DSM 29666	complete			2928380500	1209954	89.9
66792	ASM328994v1 assembly for Mesorhizobium hawassense AC99b	contig	GCA_003289945	1209954.3	2979800979	1209954	64.12

16S sequences

@ref	Description	Accession	Length	Database	NCBI tax ID
22039	Mesorhizobium hawassense strain AC99b 16S ribosomal RNA gene, partial sequence	GQ847899	1449		1209954

GC content

22039

GC-content (mol%)62.5

Genome-based predictions

Predictions

Predictions from Deep Learning for Genome Sequence Data. R package version 0.3.1 based on: ASM328994v1 assembly for Mesorhizobium hawassense AC99b
NCBI: GCA_003289945

@ref	Trait	Model	Prediction	Confidence in %	In training data
125439	gram_stain	BacteriaNetⓘ	negative	89.47	no
125439	oxygen_tolerance	BacteriaNetⓘ	obligate aerobe	98.91	no
125439	motility	BacteriaNetⓘ	yes	55.02	no
125439	spore_formation	BacteriaNetⓘ	no	99.18	no

Literature

Topic	Title	Authors	Journal	DOI	Year
Phylogeny	Mesorhizobium shonense sp. nov., Mesorhizobium hawassense sp. nov. and Mesorhizobium abyssinicae sp. nov., isolated from root nodules of different agroforestry legume trees.	Degefu T, Wolde-Meskel E, Liu B, Cleenwerck I, Willems A, Frostegard A	Int J Syst Evol Microbiol	10.1099/ijs.0.044032-0	2012

References

#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 )
#22039	Leibniz Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH ; Curators of the DSMZ; DSM 29666
#27103	IJSEM 1746 2013 ( DOI 10.1099/ijs.0.044032-0 , PubMed 22941297 )
#30772	Barberan A, Caceres Velazquez H, Jones S, Fierer N.: Hiding in Plain Sight: Mining Bacterial Species Records for Phenotypic Trait Information. mSphere 2: 2017 ( DOI 10.1128/mSphere.00237-17 , PubMed 28776041 ) - originally annotated from #27103
#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) .
#68369	Automatically annotated from API 20NE .
#125439	Philipp Münch, René Mreches, Martin Binder, Hüseyin Anil Gündüz, Xiao-Yin To, Alice McHardy: deepG: Deep Learning for Genome Sequence Data. R package version 0.3.1 .
#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 )

Content

About us

Mesorhizobium hawassense (DSM 29666, HAMBI 3301, LMG 26968)

Name and taxonomic classification

Morphology

Cell morphology

Colony morphology

Pigmentation

Culture and growth conditions

Culture medium

Culture temp

Culture pH

Physiology and metabolism

Oxygen tolerance

Spore formation

Metabolite utilization

Metabolite production

Metabolite tests

Enzymes

API 20NE

Isolation, sampling and environmental information

Isolation source categories

Isolation

Interaction and safety

Risk assessment

Sequence information

Genome sequences

Genome browser: GCA_003289945

16S sequences

GC content

Genome-based predictions

Predictions

Literature

Literature

References

BacDive

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