Streptomyces monashensis sp. nov., a novel mangrove soil actinobacterium from East Malaysia with antioxidative potential

Jodi Woan Fei Law, Hooi Leng Ser, Nurul Syakima Ab Mutalib, Surasak Saokaew, Acharaporn Duangjai, Tahir Mehmood Khan, Kok Gan Chan, Bey Hing Goh, Learn Han Lee

Research output: Journal PublicationArticlepeer-review

49 Citations (Scopus)


A new Streptomyces species discovered from Sarawak mangrove soil is described, with the proposed name – Streptomyces monashensis sp. nov. (strain MUSC 1JT). Taxonomy status of MUSC 1JT was determined via polyphasic approach. Phylogenetic and chemotaxonomic properties of strain MUSC 1JT were in accordance with those known for genus Streptomyces. Based on phylogenetic analyses, the strains closely related to MUSC 1JT were Streptomyces corchorusii DSM 40340T (98.7%), Streptomyces olivaceoviridis NBRC 13066T (98.7%), Streptomyces canarius NBRC 13431T (98.6%) and Streptomyces coacervatus AS-0823T (98.4%). Outcomes of DNA–DNA relatedness between strain MUSC 1JT and its closely related type strains covered from 19.7 ± 2.8% to 49.1 ± 4.3%. Strain MUSC 1JT has genome size of 10,254,857 bp with DNA G + C content of 71 mol%. MUSC 1JT extract exhibited strong antioxidative activity up to 83.80 ± 4.80% in the SOD assay, with significant cytotoxic effect against colon cancer cell lines HCT-116 and SW480. Streptomyces monashensis MUSC 1JT (=DSM 103626T = MCCC 1K03221T) could potentially be a producer of novel bioactive metabolites; hence discovery of this new species may be highly significant to the biopharmaceutical industry as it could lead to development of new and useful chemo-preventive drugs.

Original languageEnglish
Article number3056
JournalScientific Reports
Issue number1
Publication statusPublished - 1 Dec 2019
Externally publishedYes

ASJC Scopus subject areas

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