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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 65, Issue Pt_9

sp. nov., potential plant-growth-promoting endophytic bacteria isolated from rice roots Free

Abstract

Bacterial strains ZYY136 and ZYY9 were isolated from surface-sterilized rice roots from a long-term experiment of rice–rice– rotation. The 16S rRNA gene sequences of strains ZYY136 and ZYY9 showed the highest similarity, of 97.0  %, to PL-41. Sequence analysis of the housekeeping genes , and clearly differentiated the isolates from currently described species of the genus . The DNA–DNA relatedness value between ZYY136 and ZYY9 was 82.3  %, and ZYY136 showed 34.0  % DNA–DNA relatedness with the most closely related type strain, PL-41. The DNA G+C content of strain ZYY136 was 58.1 mol%. The major cellular fatty acids were summed feature 8 (Cω7 and/or Cω6), C and C 3-OH. Strains ZYY136 and ZYY9 could be differentiated from the previously defined species of the genus by several phenotypic characteristics. Therefore, we conclude that strains ZYY136 and ZYY9 represent a novel species of the genus , for which the name sp. nov. is proposed (type strain ZYY136 = ACCC 05753 = KCTC 32088).

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2015-09-01
2024-04-25
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Rhizobium oryzicola sp. nov., potential plant-growth-promoting endophytic bacteria isolated from rice roots
Int J Syst Evol Microbiol 65, 2931 (2015); https://doi.org/10.1099/ijs.0.000358
/content/journal/ijsem/10.1099/ijs.0.000358
/content/journal/ijsem/10.1099/ijs.0.000358
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