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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 74, Issue 1

sp.nov., isolated from rhizosphere soil No Access

Abstract

A spherical, pink, aerobic, Gram-stain-positive bacterial strain (MIMF12) was isolated from rhizosphere soil collected in the Inner Mongolia Autonomous Region, PR China. Cellular growth of the strain was observed at pH 6.0–8.0 (optimum, pH 7.0), at 20–37 °C (optimum, 28 °C) and with 0–1 % (w/v) NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain MIMF12 was most closely related to SDU3-2 with a similarity value of 96.0 %. The respiratory quinone was menaquinone 8, the major fatty acids were C 6 and C 8, and the major polar lipids were composed of two aminophospholipids, one phospholipid and four unidentified lipids. The G+C content of the genomic DNA was 70.1 mol%. The average nucleotide identity and digital DNA–DNA hybridization values between strain MIMF12 and the closest related type strain SDU3-2 were 88.1 and 52.1 %, respectively. The discovery that MIMF12 differs not only from validly named species in the genus , but also from currently unnamed species in the GDTB, gives us new insights into the genus. Based on phenotypic, chemotaxonomic and phylogenetic characteristics, strain MIMF12 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is MIMF12 (=CGMCC 1.61579=KCTC 43572).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Deinococcaceae , Deinococcus rhizophilus , polyphasic taxonomy and rhizosphere soil
Funding
This study was supported by the:
  • Inner Mongolia University of Science and Technology (Award NJZY22513)
    • Principle Award Recipient: NotApplicable
  • Natural Science Foundation of Inner Mongolia Autonomous Region (Award 2023LHMS03030)
    • Principle Award Recipient: HengLi
  • National Natural Science Foundation of China (Award 31960021)
    • Principle Award Recipient: FuyingYing Feng
  • Inner Mongolia Application Technology Research and Development Funding Project (Award 2021GG0360)
    • Principle Award Recipient: FuyingYing Feng
© 2024 The Authors
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/content/journal/ijsem/10.1099/ijsem.0.006232
2024-01-16
2025-01-21
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Deinococcus rhizophilus sp.nov., isolated from rhizosphere soil
Int J Syst Evol Microbiol 74, 006232 (2024); https://doi.org/10.1099/ijsem.0.006232
/content/journal/ijsem/10.1099/ijsem.0.006232
/content/journal/ijsem/10.1099/ijsem.0.006232
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