Table 1.

Isolates and reference strains used

DNA poolStrain or isolateaHost plantGeographic originSource or referenceb
Bradyrhizobium sp. strain IRBG271 Aeschynomene fluminensis PhilippinesIRRI
Rhizobium sp. strain IRBG74 S. aculeata PhilippinesIRRI
A Azospira oryzae 6a3T = LMG 9096T Leptochloa fusca Pakistan37
B. elkanii USDA76T Glycine max United StatesUSDA
Bradyrhizobium sp. strain TAL 209 Vigna radiata Thailand41
Bradyrhizobium sp. strain TAL 289 Indigofera endecaphylla Mexico41
Bradyrhizobium sp. strain TAL 1037 Indigofera brevicalix Kenya41
Bradyrhizobium sp. strain TAL 1521 Acacia manginum Hawaii41
B Bradyrhizobium sp. strain CIAT 109 Desmodium intortum ZaireCIAT
Bradyrhizobium sp. strain CIAT 1502 Desmodium incanum HawaiiCIAT
Bradyrhizobium sp. strain CIAT 2335 Desmodium ovalifolium BrazilCIAT
B. elkanii USDA31, USDA46 G. max United StatesUSDA
C B. japonicum B 15 G. max ChinaCCBAU
B. japonicum USDA6T G. max JapanUSDA
B. japonicum X1-3, X6-9 G. max China51
B. japonicum USDA62, USDA110, USDA123 G. max United StatesUSDA
B. japonicum DSM 30131 G. max JapanDSMZ
D Bradyrhizobiumsp. strain BC-C1, BC-C2 Chamaecytisus proliferus Gran Canaria, Canary Islands51
Bradyrhizobium sp. strain BC-P7, BTA-1 C. proliferus La Palma, Canary Islands51
Bradyrhizobium sp. strain TAL1000 Arachis hypogaea HawaiiHAMBI
Bradyrhizobium sp. strain FN13, CICS70 Lupinus montanus Mexico3
Bradyrhizobium sp. strain Spr7-9 A. hypogaea China58
E Mesorhizobium loti NZP 2213T Lotus corniculatus New ZealandNZP
M. loti NZP 2227, NZP 2234 Lotus sp.NZP
Mesorhizobium amorphae ACCC 19665T Amorpha fruticosa ChinaCCBAU
Mesorhizobium sp. strain HL56 A. fruticosa ChinaCCBAU
Mesorhizobium ciceri USDA 3378T(UPM-Ca7)T Cicer arietinum SpainUSDA
F Mesorhizobium huakuii A106, PL-52 Astragalus sinicus ChinaCCBAU
M. huakuii CCBAU 2609T A. sinicus ChinaCCBAU
Mesorhizobium mediterraneum USDA3392T Cicer arietinum SpainUSDA
Mesorhizobium plurifarium LMG 1892T Acacia senegal SenegalLGM
Mesorhizobium plurifarium USDA4413T A. senegal SenegalUSDA
Mesorhizobium tianshanense A-1BST Glycyrrhiza uralensis ChinaCCBAU
G Rhizobium etli CFN42T Phaseolus vulgaris MexicoCFN
R. galegae HAMBI 1185 Galega sp.United KingdomHAMBI
R. galegae HAMBI 503 Galega officinalis United StatesHAMBI
R. galegae HAMBI 540T Galega orientalis FinlandHAMBI
R. galegae59A2United StatesUSDA
H Rhizobium giardinii USDA2914T (H152T) P. vulgaris FranceUSDA
R. hainanenseI12 Centrosema pubescens ChinaCCBAU
R. hainanense 166T Desmodium smuatum ChinaCCBAU
R. hainanenseH14 Desmodium heterophyllum ChinaCCBAU
Rhizobium huautlenseS02T Sesbania herbacea MexicoCIFN
Rhizobium gallicum USDA2918T(R602spT) P. vulgaris FranceUSDA
I Rhizobium leguminosarum162X68 Trifolium sp.United StatesUSDA
R. leguminosarum USDA2370T United StatesUSDA
Rhizobium mongolenseUSDA1844T Medicago ruthenica ChinaUSDA
R. tropici type A CFN299 P. vulgaris MexicoCFN
R. tropici type A C-05-I P. vulgaris BrazilCFN
R. tropici type B BR853 Leucaena leucocephala BrazilCFN
R. tropici type B CIAT 899T P. vulgaris ColumbiaCFN
J Sinorhizobium fredii 2048 Glycine soja ChinaCCBAU
S. fredii USDA194, USDA205T G. soja ChinaUSDA
Sinorhizobium melilotiUSDA1002T United StatesUSDA
S. meliloti 102F28 Medicago sativa
S. meliloti H1 Melilotus albus ChinaCCBAU
Sinorhizobium terangaeLMG 7834T (ORS1009T) Acacia laeta SenegalLGM
Sinorhizobium xinjiangense CCBAU 110T G. max ChinaCCBAU
S. xinjiangense CCBAU 108, Rx22 G. max ChinaCCBAU
K A. oryzae 6a3T = LMG 9096T Leptochloa fusca Pakistan37
R. rubi HAMBI 1187T HAMBI
R. radiobacter IAM 12048T IAM
R. radiobacter IAM 13129IAM
R. rhizogenes IAM 13570T IAM
  • a ∗, Phylogenetically close to theB. elkanii rrn branch (P. Vinuesa, unpublished data).

  • b CCBAU, Culture Collection of Beijing Agricultural University, Beijing, China; ACCC, Agricultural Center Culture Collection, Chinese Academy of Agriculture, Beijing, China; CIFN, Centro de Investigación sobre Fijación de Nitrógeno, Cuernavaca, Mexico; CIAT, Centro Internacional de Agricultura Tropical, Cali, Columbia; HAMBI, Culture Collection of the Department of Microbiology, University of Helsinki, Helsinki, Finland; IAM, Institute of Applied Microbiology, The University of Tokyo, Tokyo, Japan; LMG, Collection of Bacteria of the Laboratorium voor Microbiologie, University of Ghent, Ghent, Belgium; NZP, Culture Collection of the Department for Scientific and Industrial Research, Biochemistry Division, Palmerston North, New Zealand; ORS, ORSTOM Collection, Institut Français de Recherche Scientifique pour le Développement et Coopération, Dakar, Senegal; USDA,Rhizobium Culture Collection, Beltsville Agricultural Research Center, U.S. Department of Agriculture, Beltsville, Md.; IRRI, International Rice Research Institute, Los Banos Philippines; DSMZ, Deutsche Sammlung von Mikroorganismen und Zellkulturen, Braunschweig, Germany.