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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 66, Issue 12

sp. nov. isolated from root nodules of grown in saline–alkaline soils Free

Abstract

A group of rhizobia belonging to four genotypes of a novel group was further characterized in comparison with the related species. They showed 98.2 to 99.9 % similarities among themselves and 92.9 to 93.3 % similarities with the most related strain CCBAU 05684 in multilocus sequence analysis of , and . The genome average nucleotide identity values between representative strain YIC4027 and the type strains of its closely related species were 81.6 to 88.9 %. Identical symbiotic gene (, and ) sequences highly similar with those in other nodulating strains ( sp. SIN-1, S02, ORS609 and sp. IRBG74) were detected. The representative strain YIC4027 could form effective nodules on its original host , but not on , , , , or . The use of lactulose as sole carbon source, possession of C 2-OH, C at 12–13, C iso ω9c, C anteiso and C iso and absence of C anteiso, C anteiso and C 3-OH in fatty acids distinguished the strain YIC4027 from the type strains of its closely related species. Based on all the analyses mentioned above, we propose a novel species sp. nov. and designate YIC4027 (=HAMBI 3655=LMG 29286) as the type strain. The genome size of YIC4027 is 5.97 Mbp, comprising 5588 predicted genes, and the DNA G+C content is 62.2 mol%.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Ensifer alkalisoli , rhizobia , saline-alkaline soil and Sesbania cannabina
© 2016 IUMS
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2016-12-01
2024-04-23
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Ensifer alkalisoli sp. nov. isolated from root nodules of Sesbania cannabina grown in saline–alkaline soils
Int J Syst Evol Microbiol 66, 5294 (2016); https://doi.org/10.1099/ijsem.0.001510
/content/journal/ijsem/10.1099/ijsem.0.001510
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