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

Volume 75, Issue 11

sp. nov., a novel actinobacterium isolated from greater duckweed () No Access

Abstract

An actinobacterial strain, designated DW29H23, was isolated from greater duckweed . The strain was investigated using a polyphasic taxonomy approach. The comparison of the 16S rRNA gene sequence showed that strain DW29H23 was most closely related to NEAU-KD1 (99.2%) and NEAU-365 (98.9%). The average nucleotide identity and digital DNA–DNA hybridization values between the strain and closest type strains were below the threshold for species delineation. The strain was Gram-stain-positive, non-spore-forming and non-motile. Cells were irregular, rod-shaped. The whole-cell hydrolysates contained -diaminopimelic acid. The whole-cell sugars were glucose and ribose. The polar lipid profiles contained diphosphatidylglycerol, phosphatidylglycerol and three unidentified phospholipids. The major cellular fatty acids (>10%) were C, 10-methyl-C and C 9. The major menaquinone was MK-9(H). The G+C content was 71.7%. Genotypic, phenotypic and chemotaxonomic characterizations of strain DW29H23 demonstrated that the strain represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is DW29H23 (=TBRC 18998=NBRC 116930).

  • Received:
  • Accepted:
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Keyword(s): actinomycete , duckweed , Mumia and polyphasic taxonomy
Funding
This study was supported by the:
  • Faculty of Science, Kasetsart University through the Graduate Fellowship Program
    • Principal Award Recipient: TorphanVitoonpanyakit
© 2025 The Authors
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2025-11-05
2025-12-15

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Mumia spirodelae sp. nov., a novel actinobacterium isolated from greater duckweed (Spirodela polyrhiza)
Int J Syst Evol Microbiol 75, 006961 (2025); https://doi.org/10.1099/ijsem.0.006961
/content/journal/ijsem/10.1099/ijsem.0.006961
/content/journal/ijsem/10.1099/ijsem.0.006961
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