Genus Sinorhizobium

Warning: In the List of Prokaryotic names with Standing in Nomenclature, an arrow () only indicates the sequence of valid publication of names and does not mean that the last name in the sequence must be used (see: Introduction).

Number of species cited in this file: 11
Number of subspecies cited in this file: 0

Classification (Warning: see also the file "Classification of prokaryotes: Introduction").

 

Sinorhizobium Chen et al. 1988, gen. nov.
Type species: ¤ Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988.
Etymology: M.L. n. sina, China; Gr. n. rhiza, a root; Gr. n. bios, life; N.L. neut. n. Sinorhizobium, which lives in a root in China; Rhizobium isolated in China.
Reference: CHEN (W.X.), YAN (G.H.) and LI (J.L.): Numerical taxonomic study of fast-growing soybean rhizobia and a proposal that Rhizobium fredii be assigned to Sinorhizobium gen. nov. Int. J. Syst. Bacteriol., 1988, 38, 392-397.
Original article in IJSEM Online

¤ Rhizobium Frank 1889 (Approved Lists 1980).

Notes:
1 According to Jarvis et al. 1992, Sinorhizobium Chen et al. 1988 is a later heterotypic synonym of Rhizobium Frank 1889 (Approved Lists 1980).
Reference: JARVIS (B.D.W.), DOWNER (H.L.) and YOUNG (J.P.W.): Phylogeny of fast-growing soybean-nodulating rhizobia supports synonymy of Sinorhizobium and Rhizobium and assignment to Rhizobium fredii. Int. J. Syst. Bacteriol., 1992, 42, 93-96.
Original article in IJSEM Online
2 Jarvis et al. 1992, proposed that the type species of Sinorhizobium be a later synonym of Rhizobium. These authors did not, however, make any proposal regarding the transfer of ¤ Sinorhizobium xinjiangense to Rhizobium or another genus.
Reference: JARVIS (B.D.W.), DOWNER (H.L.) and YOUNG (J.P.W.): Phylogeny of fast-growing soybean-nodulating rhizobia supports synonymy of Sinorhizobium and Rhizobium and assignment to Rhizobium fredii. Int. J. Syst. Bacteriol., 1992, 42, 93-96.
Original article in IJSEM Online

Sinorhizobium Chen et al. 1988 emend. De Lajudie et al. 1994.
Type species: ¤ Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988 emend. De Lajudie et al. 1994.
Etymology: M.L. n. sina, China; Gr. n. rhiza, a root; Gr. n. bios, life; N.L. neut. n. Sinorhizobium, which lives in a root in China; Rhizobium isolated in China.
Reference: DE LAJUDIE (P.), WILLEMS (A.), POT (B.), DEWETTINCK (D.), MAESTROJUAN (G.), NEYRA (M.), COLLINS (M.D.), DREYFUS (B.), KERSTERS (K.) and GILLIS (M.): Polyphasic taxonomy of rhizobia: emendation of the genus Sinorhizobium and description of Sinorhizobium meliloti comb. nov., Sinorhizobium saheli sp. nov., and Sinorhizobium teranga sp. nov. Int. J. Syst. Bacteriol., 1994, 44, 715-733.
Original article in IJSEM Online

¤ Ensifer Casida 1982 emend. Young 2003.

Notes:
1 J.M. Young 2003 [1] proposes to transfer ¤ Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988, the type species of the genus Sinorhizobium, to the genus ¤ Ensifer as ¤ Ensifer fredii (Scholla and Elkan 1984) Young 2003, comb. nov. According to Rule 37a, bacteriologists adhering to this proposal must change the name Sinorhizobium to ¤ Ensifer.
According to the Judicial Commission [2], further taxonomic studies have shown that there is reason to consider the names Sinorhizobium Chen et al. 1988 and ¤ Ensifer Casida 1982 to be synonyms, and the Rules of the Bacteriological Code indicate that the principle of priority would result in the members of the genus Sinorhizobium being transferred to the genus ¤ Ensifer, as proposed by J.M. Young 2003 [1].
References:
1 YOUNG (J.M.): The genus name Ensifer Casida 1982 takes priority over Sinorhizobium Chen et al. 1988, and Sinorhizobium morelense Wang et al. 2002 is a later synonym of Ensifer adhaerens Casida 1982. Is the combination 'Sinorhizobium adhaerens' (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion. Int. J. Syst. Evol. Microbiol., 2003, 53, 2107-2110.
Original article in IJSEM Online
2 JUDICIAL COMMISSION OF THE INTERNATIONAL COMMITTEE ON SYSTEMATICS OF PROKARYOTES: The genus name Sinorhizobium Chen et al. 1988 is a later synonym of Ensifer Casida 1982 and is not conserved over the latter genus name, and the species name 'Sinorhizobium adhaerens’ is not validly published. Opinion 84. Int. J. Syst. Evol. Microbiol., 2008, 58, 1973.
Opinion 84 in IJSEM Online
2 According to the "Subcommittee on the taxonomy of Agrobacterium and Rhizobium", phylogenies based on several core genes suggest that ¤ Ensifer adhaerens and ¤ Sinorhizobium morelense form a sister clade to the rest of the Sinorhizobium species [Martens et al., Int. J. Syst. Evol. Microbiol., 2007, 57, 489-503]. If confirmed, this could be a basis for retaining Sinorhizobium and ¤ Ensifer as distinct genera.
Reference: LINDSTRÖM (K.) and MARTÍNEZ-ROMERO (E.): International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Agrobacterium and Rhizobium. Minutes of the meeting, 23-24 July 2006, Århus, Denmark. Int. J. Syst. Evol. Microbiol., 2007, 57, 1365-1366.
Original article in IJSEM Online
3 At its meetings in August 2008 [1], the "Subcommittee on the taxonomy of Agrobacterium and Rhizobium" did not disagree with the Judicial Opinion 84 [2]. However, the subcommittee disagrees with the justification. The transfer of the members of the genus Sinorhizobium to the genus Ensifer would cause great confusion in the scientific community. At a session of the 8th European Nitrogen Fixation Conference on 31 August 2008, an overwhelming majority of those present indicated that they were not in favour of changing the name from Sinorhizobium to Ensifer. In 2010, J.M. Young [3] comments and disapproves the decision of the subcommittee.
References:
1 LINDSTRÖM (K.) and YOUNG (J.P.W.): International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Agrobacterium and Rhizobium Minutes of the meeting, 31 August 2008, Gent, Belgium. Int. J. Syst. Evol. Microbiol., 2009, 59, 921-922.
Original article in IJSEM Online
2 JUDICIAL COMMISSION OF THE INTERNATIONAL COMMITTEE ON SYSTEMATICS OF PROKARYOTES: The genus name Sinorhizobium Chen et al. 1988 is a later synonym of Ensifer Casida 1982 and is not conserved over the latter genus name, and the species name 'Sinorhizobium adhaerens’ is not validly published. Opinion 84. Int. J. Syst. Evol. Microbiol., 2008, 58, 1973.
Opinion 84 in IJSEM Online
3 YOUNG (J.M.): Sinorhizobium versus Ensifer: may a taxonomy subcommittee of the ICSP contradict the Judicial Commission?. Int. J. Syst. Evol. Microbiol., 2010, 60, 1711-1713.
Original article in IJSEM Online

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Sinorhizobium americanum corrig. Toledo et al. 2004, sp. nov.
Type strain: (see also StrainInfo.net) strain CFNEI 156 = ATCC BAA-532 = CIP 108390 = DSM 15007.
Sequence accession no. (16S rRNA gene) for the type strain: AF506513.
Etymology: N.L. neut. adj. americanum, American, pertaining to the American continent.
References: VALIDATION LIST no. 100. Int. J. Syst. Evol. Microbiol., 2004, 54, 1909-1910. [TOLEDO (I.), LLORET (L.) and MARTÍNEZ-ROMERO (E.): Sinorhizobium americanus sp. nov., a new sinorhizobium species nodulating native Acacia spp. in Mexico. Syst. Appl. Microbiol., 2003, 26, 54-64.]
Validation List no. 100 in IJSEM Online - Effective publication Online

Notes:
1 The correct spelling of the specific epithet (erroneously cited as americanus in the effective publication) and its etymology have been provided by the way of an erratum (Syst Appl Microbiol 2003, 26, 319).
Reference: LISTS EDITOR, IJSEM: Validation List no. 100 (footnote ¶). Int. J. Syst. Evol. Microbiol., 2004, 54, 1909-1910.
Validation List no. 100 in IJSEM Online
2 The culture collection accession number CIP 108390 has been provided on request for validation.
Reference: LISTS EDITOR, IJSEM: Validation List no. 100 (footnote #). Int. J. Syst. Evol. Microbiol., 2004, 54, 1909-1910.
Validation List no. 100 in IJSEM Online

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Sinorhizobium arboris Nick et al. 1999, sp. nov.
Type strain: (see also StrainInfo.net) strain TTR 38 = ATCC BAA-226 = DSM 13375 = HAMBI 1552 = LMG 14919 = NBRC 100383.
Sequence accession no. (16S rRNA gene) for the type strain: Z78204.
Etymology: L. n. arbor, tree; L. gen. n. arboris, of a tree.
Reference: NICK (G.), de LAJUDIE (P.), EARDLY (B.D.), SUOMALAINEN (S.), PAULIN (L.), ZHANG (X.), GILLIS (M.) and LINDSTRÖM (K.): Sinorhizobium arboris sp. nov. and Sinorhizobium kostiense sp. nov., isolated from leguminous trees in Sudan and Kenya. Int. J. Syst. Bacteriol., 1999, 49, 1359-1368.
Original article in IJSEM Online

¤ Ensifer arboris (Nick et al. 1999) Young 2003, comb. nov.

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Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988, comb. nov. (Type species of the genus.)
Type strain: (see also StrainInfo.net) strain PRC 205 = ATCC 35423 = CCUG 27877 = DSM 5851 = HAMBI 2075 = ICMP 11139 = IFO (now NBRC) 14780 = JCM 20967 = LMG 6217 = NRRL B-14241 = NRRL B-14594 = USDA 205.
Sequence accession no. (16S rRNA gene) for the type strain: X67231.
Basonym: ¤ Rhizobium fredii Scholla and Elkan 1984.
Etymology: N.L. gen. n. fredii, of Fred, named after of E.B. Fred.
Reference: CHEN (W.X.), YAN (G.H.) and LI (J.L.): Numerical taxonomic study of fast-growing soybean rhizobia and a proposal that Rhizobium fredii be assigned to Sinorhizobium gen. nov. Int. J. Syst. Bacteriol., 1988, 38, 392-397.
Original article in IJSEM Online

Note: The subcommittee on the taxonomy of Agrobacterium and Rhizobium does not endorse the genus Sinorhizobium Chen et al. 1988, and recommends that Rhizobium fredii Scholla and Elkan 1984 be retained in the genus Rhizobium Frank 1889 (Approved Lists 1980).
Reference: ICSB, SUBCOMMITTEE ON THE TAXONOMY OF AGROBACTERIUM AND RHIZOBIUM: Minutes of the meeting, 10 December 1992, Cancun, Mexico. Int. J. Syst. Bacteriol., 1993, 43, 622.
Original article in IJSEM Online

¤ Rhizobium fredii Scholla and Elkan 1984.

Note: According to Jarvis et al. 1992, Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988 is a later homotypic synonym of ¤ Rhizobium fredii Scholla and Elkan 1984.
Reference: JARVIS (B.D.W.), DOWNER (H.L.) and YOUNG (J.P.W.): Phylogeny of fast-growing soybean-nodulating rhizobia supports synonymy of Sinorhizobium and Rhizobium and assignment to Rhizobium fredii. Int. J. Syst. Bacteriol., 1992, 42, 93-96.
Original article in IJSEM Online

Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988 emend. De Lajudie et al. 1994.
Type strain: (see also StrainInfo.net) strain PRC 205 = ATCC 35423 = CCUG 27877 = DSM 5851 = HAMBI 2075 = IFO (now NBRC) 14780 = JCM 20967 = LMG 6217 = NRRL B-14241 = NRRL B-14594 = USDA 205.
Sequence accession no. (16S rRNA gene) for the type strain: X67231.
Etymology: N.L. gen. n. fredii, of Fred, named after of E.B. Fred.
Reference: DE LAJUDIE (P.), WILLEMS (A.), POT (B.), DEWETTINCK (D.), MAESTROJUAN (G.), NEYRA (M.), COLLINS (M.D.), DREYFUS (B.), KERSTERS (K.) and GILLIS (M.): Polyphasic taxonomy of rhizobia: emendation of the genus Sinorhizobium and description of Sinorhizobium meliloti comb. nov., Sinorhizobium saheli sp. nov., and Sinorhizobium teranga sp. nov. Int. J. Syst. Bacteriol., 1994, 44, 715-733.
Original article in IJSEM Online

¤ Ensifer fredii (Scholla and Elkan 1984) Young 2003, comb. nov.

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Sinorhizobium kostiense Nick et al. 1999, sp. nov.
Type strain: (see also StrainInfo.net) strain TTR 15 = ATCC BAA-227 = DSM 13372 = HAMBI 1489 = LMG 15613 = LMG 19227 = NBRC 100382.
Sequence accession no. (16S rRNA gene) for the type strain: AM181747.
Etymology: N.L. neut. adj. kostiense, pertaining to Kosti, the region in Sudan where most of these organisms have been isolated.
Reference: NICK (G.), de LAJUDIE (P.), EARDLY (B.D.), SUOMALAINEN (S.), PAULIN (L.), ZHANG (X.), GILLIS (M.) and LINDSTROM (K.): Sinorhizobium arboris sp. nov. and Sinorhizobium kostiense sp. nov., isolated from leguminous trees in Sudan and Kenya. Int. J. Syst. Bacteriol., 1999, 49, 1359-1368.
Original article in IJSEM Online

¤ Ensifer kostiensis (Nick et al. 1999) Young 2003, comb. nov.

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Sinorhizobium kummerowiae Wei et al. 2002, sp. nov.
Type strain: (see also StrainInfo.net) strain AS 1.3046 = CCBAU 71714 = CIP 108026 = NBRC 100799.
Sequence accession no. (16S rRNA gene) for the type strain: AY034028.
Etymology: N.L. gen. n. kummerowiae, of Kummerowia, a genus of leguminous plants, referring to the host from which the bacterium was isolated.
Reference: WEI (G.H.), WANG (E.T.), TAN (Z.Y.), ZHU (M.E.) and CHEN (W.X.): Rhizobium indigoferae sp. nov. and Sinorhizobium kummerowiae sp. nov., respectively isolated from Indigofera spp. and Kummerowia stipulacea. Int. J. Syst. Evol. Microbiol., 2002, 52, 2231-2239.
Original article in IJSEM Online

Notes:
1 In the abstract the type strain is erroneously cited as CCBAU 71042 = AS 1.3045.
2 According to Rules 27(3) and 30, this name is not validly published, because the original publication makes reference to the deposit of the type strain in a single recognized culture collection. However, according to the Judicial Opinion 81, Sinorhizobium kummerowiae Wei et al. 2002 is considered to be validly published, since deposit in a second culture collection in a different country has been documented.
References:
1 EUZÉBY (J.P.) and TINDALL (B.J.): Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an Opinion. Int. J. Syst. Evol. Microbiol., 2004, 54, 293-301.
Original article in IJSEM Online
2 JUDICIAL COMMISSION OF THE INTERNATIONAL COMMITTEE ON SYSTEMATICS OF PROKARYOTES: Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. Int. J. Syst. Evol. Microbiol., 2008, 58, 1755-1763.
Opinion 81 in IJSEM Online

¤ Ensifer kummerowiae (Wei et al. 2002) Young 2003, comb. nov.

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Sinorhizobium medicae Rome et al. 1996, sp. nov.
Type strain: (see also StrainInfo.net) strain 11-3 21a = A 321 = HAMBI 2306 = ICMP 13798 = LMG 19920 = NBRC 100384 = USDA 1037.
Sequence accession no. (16S rRNA gene) for the type strain: not found.
Etymology: L. gen. n. medicae, of/from lucern (plant belonging to the genus Medicago).
Reference: ROME (S.), FERNANDEZ (M.P.), BRUNEL (B.), NORMAND (P.) and CLEYET-MAREL (J.C.): Sinorhizobium medicae sp. nov., isolated from annual Medicago spp. Int. J. Syst. Bacteriol., 1996, 46, 972-980.
Original article in IJSEM Online

¤ Ensifer medicae (Rome et al. 1996) Young 2003, comb. nov.

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Sinorhizobium meliloti (Dangeard 1926) De Lajudie et al. 1994, comb. nov.
Type strain: (see also StrainInfo.net) strain ATCC 9930 = CCUG 27879 = CFBP 5561 = DSM 30135 = HAMBI 2148 = ICMP 12623 = IFO (now NBRC) 14782 = JCM 20682 = LMG 6133 = NCAIM B.01520 = NRRL L-45 = NZP 4027 = USDA 1002.
Sequence accession no. (16S rRNA gene) for the type strain: D14509.
Basonym: ¤ Rhizobium meliloti Dangeard 1926 (Approved Lists 1980).
Etymology: N.L. n. Melilotus, generic name of sweet clover; N.L. gen. n. meliloti, of Melilotus.
Reference: DE LAJUDIE (P.), WILLEMS (A.), POT (B.), DEWETTINCK (D.), MAESTROJUAN (G.), NEYRA (M.), COLLINS (M.D.), DREYFUS (B.), KERSTERS (K.) and GILLIS (M.): Polyphasic taxonomy of rhizobia: emendation of the genus Sinorhizobium and description of Sinorhizobium meliloti comb. nov., Sinorhizobium saheli sp. nov., and Sinorhizobium teranga sp. nov. Int. J. Syst. Bacteriol., 1994, 44, 715-733.
Original article in IJSEM Online

¤ Ensifer meliloti (Dangeard 1926) Young 2003, comb. nov.

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Sinorhizobium morelense Wang et al. 2002, sp. nov.
Type strain: (see also StrainInfo.net) strain Lc04 = CFN E1007 = LMG 21331 = NBRC 100387.
Sequence accession no. (16S rRNA gene) for the type strain: EU928872.
Etymology: N.L. neut. adj. morelense, pertaining to Morelos, the name of a state in Mexico, where the bacterium was isolated.
Reference: WANG (E.T.), TAN (Z.Y.), WILLEMS (A.), FERNANDEZ-LÓPEZ (M.), REINHOLD-HUREK (B.) and MARTÍNEZ-ROMERO (E.): Sinorhizobium morelense sp. nov., a Leucaena leucocephala-associated bacterium that is highly resistant to multiple antibiotics. Int. J. Syst. Evol. Microbiol., 2002, 52, 1687-1693.
Original article in IJSEM Online

Note: According to Rules 27(3) and 30, this name is not validly published, because the original publication makes reference to the deposit of the type strain in a single recognized culture collection. However, according to the Judicial Opinion 81, Sinorhizobium morelense Wang et al. 2002 is considered to be validly published, since deposit in a second culture collection in a different country has been documented.
References:
1 EUZÉBY (J.P.) and TINDALL (B.J.): Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an Opinion. Int. J. Syst. Evol. Microbiol., 2004, 54, 293-301.
Original article in IJSEM Online
2 JUDICIAL COMMISSION OF THE INTERNATIONAL COMMITTEE ON SYSTEMATICS OF PROKARYOTES: Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. Int. J. Syst. Evol. Microbiol., 2008, 58, 1755-1763.
Opinion 81 in IJSEM Online

¤ Ensifer adhaerens Casida 1982.

Notes:
1 According to Young 2003, Sinorhizobium morelense Wang et al. 2002 is a later heterotypic synonym of ¤ Ensifer adhaerens Casida 1982.
Reference: YOUNG (J.M.): The genus name Ensifer Casida 1982 takes priority over Sinorhizobium Chen et al. 1988, and Sinorhizobium morelense Wang et al. 2002 is a later synonym of Ensifer adhaerens Casida 1982. Is the combination 'Sinorhizobium adhaerens' (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion. Int. J. Syst. Evol. Microbiol., 2003, 53, 2107-2110.
Etymology:
Original article in IJSEM Online
2 According to Martens et al. 2007, Sinorhizobium morelense Wang et al. 2002 is not a later heterotypic synonym of ¤ Ensifer adhaerens Casida 1982, but represents a separate species of the genus ¤ Ensifer Casida 1982 emend. Young 2003.
Reference: MARTENS (M.), DELAERE (M.), COOPMAN (R.), DE VOS (P.), GILLIS (M.) and WILLEMS (A.): Multilocus sequence analysis of Ensifer and related taxa. Int. J. Syst. Evol. Microbiol., 2007, 57, 489-503.
Original article in IJSEM Online

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Sinorhizobium saheli De Lajudie et al. 1994, sp. nov.
Type strain: (see also StrainInfo.net) strain ATCC 51690 = DSM 11273 = HAMBI 215 = ICMP 13648 = LMG 7837 = NBRC 100386 = ORS 609.
Sequence accession no. (16S rRNA gene) for the type strain: X68390.
Etymology: N.L. gen. n. saheli, of the Sahel, the region in Africa from which they were isolated.
Reference: DE LAJUDIE (P.), WILLEMS (A.), POT (B.), DEWETTINCK (D.), MAESTROJUAN (G.), NEYRA (M.), COLLINS (M.D.), DREYFUS (B.), KERSTERS (K.) and GILLIS (M.): Polyphasic taxonomy of rhizobia: emendation of the genus Sinorhizobium and description of Sinorhizobium meliloti comb. nov., Sinorhizobium saheli sp. nov., and Sinorhizobium teranga sp. nov. Int. J. Syst. Bacteriol., 1994, 44, 715-733.
Original article in IJSEM Online

¤ Ensifer saheli (De Lajudie et al. 1994) Young 2003, comb. nov.

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Sinorhizobium terangae corrig. De Lajudie et al. 1994, sp. nov.
Type strain: (see also StrainInfo.net) strain ATCC 51692 = DSM 11282 = HAMBI 220 = ICMP 13649 = LMG 7834 = NBRC 100385 = ORS 1009.
Sequence accession no. (16S rRNA gene) for the type strain: X68388.
Etymology: N.L. n. terenga (from West African Wolof n. terenga, hospitality), hospitality; N.L. gen. n. terangae, of hospitality; intended to mean that this species is isolated from different host plants.
Reference: DE LAJUDIE (P.), WILLEMS (A.), POT (B.), DEWETTINCK (D.), MAESTROJUAN (G.), NEYRA (M.), COLLINS (M.D.), DREYFUS (B.), KERSTERS (K.) and GILLIS (M.): Polyphasic taxonomy of rhizobia: emendation of the genus Sinorhizobium and description of Sinorhizobium meliloti comb. nov., Sinorhizobium saheli sp. nov., and Sinorhizobium teranga sp. nov. Int. J. Syst. Bacteriol., 1994, 44, 715-733.
Original article in IJSEM Online

Notes:
1 The original spelling of the specific epithet, teranga (sic), has been corrected by Trüper and De’ Clari 1997.
Reference: TRÜPER (H.G.) and DE’ CLARI (L.): Taxonomic note: Necessary correction of specific epithets formed as substantives (nouns) "in apposition". Int. J. Syst. Bacteriol., 1997, 47, 908-909.
Original article in IJSB Online
2 On page 732, the type strain is erroneously designated as LMG 7854.

¤ Ensifer terangae (De Lajudie et al. 1994) Young 2003, comb. nov.

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Sinorhizobium xinjiangense corrig. Chen et al. 1988, sp. nov.
Type strain: (see also StrainInfo.net) strain ATCC 49357 = CCBAU 110 = DSM 5852 = HAMBI 1673 = ICMP 11141 = JCM 21035 = LMG 17930 = NBRC 100018.
Sequence accession no. (16S rRNA gene) for the type strain: EU152397.
Etymology: N.L. neut. adj. xinjiangense, pertaining to the suburbs of Xinjiang, China.
Reference: CHEN (W.X.), YAN (G.H.) and LI (J.L.): Numerical taxonomic study of fast-growing soybean rhizobia and a proposal that Rhizobium fredii be assigned to Sinorhizobium gen. nov. Int. J. Syst. Bacteriol., 1988, 38, 392-397.
Original article in IJSEM Online

Note: The original spelling of the specific epithet, xinjiangensis (sic), has been corrected by Euzéby 1998.
Reference: EUZÉBY (J.P.): Taxonomic note: necessary correction of specific and subspecific epithets according to Rules 12c and 13b of the International Code of Nomenclature of Bacteria (1990 Revision). Int. J. Syst. Bacteriol., 1998, 48, 1073-1075.
Original article in IJSEM Online

¤ Ensifer xinjiangensis (Chen et al. 1988) Young 2003, comb. nov.

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