Abstract
A novel bacterial strain, TLK-CK17T, was isolated from cow dung compost sample. The strain was Gram-staining negative, non-gliding rods, aerobic, and displayed growth at 15–40 °C (optimally, 35 °C), with 0–5.0% (w/v) NaCl (optimally, 0.5) and at pH 6.5–8.5 (optimally, 7.0–7.5). The assembled genome of strain TLK-CK17T has a total length of 4.3 Mb with a G + C content of 68.2%. According to the genome analysis, strain TLK-CK17T encodes quite a few glycoside hydrolases that may play a role in the degradation of accumulated plant biomass in compost. On the basis 16S rRNA gene sequence analysis, strain TLK-CK17T showed the highest sequence similarity (98.9%) with L. penaei GDMCC 1.1817 T, followed by L. maris KCTC 42381 T (98.3%). Cells contained iso-C16:0, iso-C15:0, and summed feature 9 (comprising C17:1 ω9c and/or 10-methyl C16:0), as its major cellular fatty acids (> 10.0%) and ubiquinone-8 as the exclusively respiratory quinone. Diphosphatidylglycerol, phosphatidylethanolamine, and phosphatidylglycerol prevailed among phospholipids. Based on the phenotypic, genomic and phylogenetic data, strain TLK-CK17T represents a novel species of the genus Lysobacter, for which the name Lysobacter chinensis sp. nov. is proposed, and the type strain is TLK-CK17T (= CCTCC AB2021257T = KCTC 92122 T).
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Data availability
The genome and 16S rRNA gene sequence are available from GenBank under the accession numbers provided in the manuscript.
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Funding
This work was supported by the Xinjiang Academy of Agricultural Sciences Young Science and Technology Backbone Innovation Ability Training Project (xjnkq-2022019), Regional Collaborative Innovation Special Project of Xinjiang Uygur Autonomous Region (Nos. 2021E02022) and Forestry Development Subsidy Fund Project of Xinjiang Uygur Autonomous Region (Nos. XJLYKJ-2021–15).
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All authors contributed to the study conception and design. YYL wrote the manuscript and analysed the cultivation data. LYZ performed the genomic and phylogenetic analysis. YXP and PBL isolated the strain and performed the initial cultivation and strain deposition. YXX, JPD and ZQS contributed to text preparation and revised the manuscript. LF performed the electron microscopic analysis and prepared the SEM pictures. XWW and ZFW took the samples. All authors read and approved the final manuscript.
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Liu, Y., Zhou, L., Yang, X. et al. Lysobacter chinensis sp. nov., a cellulose-degrading strain isolated from cow dung compost. Antonie van Leeuwenhoek 115, 1031–1040 (2022). https://doi.org/10.1007/s10482-022-01755-3
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DOI: https://doi.org/10.1007/s10482-022-01755-3