Lysobacter prati sp. nov., isolated from a plateau meadow sample

Area of Science:

• Microbiology
• Bacteriology
• Taxonomy

Background:

• Soil ecosystems harbor diverse microbial communities.
• The genus Lysobacter comprises bacteria with various ecological roles and biotechnological potential.
• Accurate taxonomic classification is crucial for understanding microbial diversity and function.

Purpose of the Study:

• To isolate and characterize a novel bacterial strain from a plateau meadow soil sample.
• To determine the taxonomic position of the novel strain within the genus Lysobacter.
• To propose a new species name and designation for the identified bacterium.

Main Methods:

• Polyphasic taxonomic analysis including 16S rRNA gene sequencing and phylogenetic analysis.
• Genomic analysis for secondary metabolite prediction.
• Chemotaxonomic analysis of isoprenoid quinones, fatty acids, and polar lipids.
• Determination of genomic DNA G+C content.

Main Results:

• A novel proteobacterial strain, SYSU H10001^T, was isolated from a Sichuan plateau meadow soil sample.
• Phylogenetic analysis based on 16S rRNA gene sequences showed highest similarity to Lysobacter soli (98.6%) and Lysobacter panacisoli (98.2%).
• Genomic analysis predicted the presence of bacteriocin, non-ribosomal peptide synthetase, polyketide synthase, and arylpolyene clusters. Chemotaxonomic data (Q-8, iso-C15:0, iso-C17:0, Summed feature 9, specific polar lipids) and a G+C content of 66.5% further supported its unique identity.

Conclusions:

• Strain SYSU H10001^T represents a novel species within the genus Lysobacter.
• The proposed name for this new species is Lysobacter prati sp. nov.
• The type strain is SYSU H10001^T (KCTC 72062^T = CGMCC 1.16662^T).