Microbacterium invictum sp. nov., isolated from homemade compost

Ivone Vaz-Moreira, Ana R. Lopes, Cátia Faria, Cathrin Spröer, Peter Schumann, Olga C. Nunes, Célia M. Manaia*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Strain DC-200T was isolated from homemade compost produced from kitchen refuse and characterized using a polyphasic approach. The isolate was a Gram-positive motile short rod, facultatively aerobic, catalase-positive and oxidase-negative, and was able to grow at 10-37 6C, pH 6.0-9.5 and with up to 5% of NaCl. The peptidoglycan was of the type B1 alpha and the muramic acid residues were glycolylated. The major fatty acids were anteiso-C15: 0 and anteiso-C17: 0. The predominant respiratory menaquinones were MK-11 and MK-12. The G+C content of the genomic DNA was 70 mol%. Based on the analysis of the 16S rRNA gene sequence, the closest phylogenetic neighbours of strain DC-200T were Microbacterium lacus A5E-52T (98.7%) and Microbacterium aoyamense KV-492T (98.2%). The phenetic characterization of the isolate supports its inclusion within the genus Microbacterium; however, its distinctive phenotypic features and the results from the 16S rRNA gene sequence analysis and the DNA-DNA hybridization study suggest that the isolate represents a novel species. The name Microbacterium invictum sp. nov. is proposed. The type strain is DC-200T (=DSM 19600T=LMG 24557T).

Original languageEnglish
Pages (from-to)2036-2041
Number of pages6
JournalInternational Journal of Systematic and Evolutionary Microbiology
Issue number8
Publication statusPublished - 10 Nov 2009


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