Cohnella candidum sp. nov., radiation-resistant bacterium from soil

Soo Hyun Maeng, Myung Kyum Kim, Jun Hwee Jang, Hana Yi, Gayathri Subramani

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5 Citations (Scopus)


A Gram-stain positive, endospore-forming, circular, convex, cream colored, designated strain 18JY8-7T, was isolated from soil collected in Jeju Island, South Korea. Phylogenetic analysis using 16S rRNA gene sequences showed that strain 18JY8-7T formed a distinct lineage within the family Paenibacillaceae (order Bacillales, class Bacilli), and is closely related to Cohnella rhizosphaerae (96.1%, sequence similarity) and Cohnella xylanilytica (96.0%). Optimal growth occurred at 30 °C, pH 6.5 and in the absence of NaCl. The predominant cellular fatty acids were anteiso-C15:0 and iso-C16:0. The major respiratory quinone was MK-7. The polar lipids profile comprised of diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylethanolamine. The DNA G + C content was 57.0 mol %. The genotypic and phenotypic analyses revealed the differentiation of strain 18JY8-7T from all recognized Cohenella species. The strain 18JY8-7T, therefore represents a novel bacterial species within the family Paenibacillaceae, for which the name Cohnella candidum sp. nov. is proposed. The type strain is 18JY8-7T (= KCTC 33969T = JCM 33199T).

Original languageEnglish
Pages (from-to)1029-1037
Number of pages9
JournalAntonie van Leeuwenhoek, International Journal of General and Molecular Microbiology
Issue number7
Publication statusPublished - 2019 Jul 15

Bibliographical note

Funding Information:
Acknowledgements This work was supported by a research grant from Seoul Women’s University (2018) and by a Grant from the National Institute of Biological Resources (NIBR), funded by the Ministry of Environment (MOE) of the Republic of Korea (NIBR201801106).

Publisher Copyright:
© 2019, Springer Nature Switzerland AG.


  • Cohnella
  • Novel species
  • Paenibacillaceae
  • Radiation-resistant
  • Taxonomy

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology


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