Abstract
A novel actinobacterial strain, designated 10F1D-1T, was isolated from soil sample collected from Futian mangrove nature reserve, China using of the in situ cultivation technique. Preliminary analysis based on the 16S rRNA gene sequence revealed that strain 10F1D-1T was the member of genus Schumannella with sharing highest sequence similarity (99.7%) to Schumannella luteola DSM 23141T. Phylogenetic analyses based on 16S rRNA gene sequences and core proteome consistently exhibited that strain 10F1D-1T formed a monophyletic clade with Schumannella luteola DSM 23141T. Comparative genomic analyses clearly separated strain 10F1D-1T from the only species of the genus Schumannella based on average nucleotide identity (ANI), average amino acid identity (AAI) and digital DNA-DNA hybridization (dDDH) values below the thresholds for species delineation. The genome of strain 10F1D-1T contains the biosynthetic gene clusters for osmoprotectants to adapt to the salt environment of mangrove. Strain 10F1D-1T also contains the biosynthetic gene clusters for bioactive compounds as secondary metabolites. On the basis of the polyphasic analysis, strain 10F1D-1T is considered to represent a novel species of the genus Schumannella, for which the name Schumannella soli sp. nov. (type strain 10F1D-1T = CGMCC1.16699T = JCM 33146T) is proposed.
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All data generated and analyzed in present study are included in this published article, supplementary files and GenBank/EMBL/DDBJ.
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Funding
This research was partly supported by the Drug Innovation Major Project of China (Grant No. 2018ZX09711001-007-001), CAMS Innovation Fund for Medical Sciences (Grant No. CAMS 2017-I2M-B&R-08) and PUMC Youth Fund (Grant No. 2017350022).
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FL designed the experiments and performed the identification. CS, FL, QL and SL carried out the sampling. SL, LT and QY supervised the phylogenetic analysis. QL and SL supervised the analyses of menaquinone and fatty acid. FL, CS and AS analyzed the results, wrote and approved the manuscript. All authors have read and agreed to the published version of the manuscript.
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Li, F., Lu, Q., Liao, S. et al. Schumannella soli sp. nov., a novel actinomycete isolated from mangrove soil by in situ cultivation. Antonie van Leeuwenhoek 114, 1657–1667 (2021). https://doi.org/10.1007/s10482-021-01631-6
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DOI: https://doi.org/10.1007/s10482-021-01631-6