Lactococcus nasutitermitis sp. nov. isolated from a termite gut.
Shu Yan Yang1, Ying Zheng1, Zhou Huang2,3
1Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Institute of Entomology, School of Life Sciences, Central China Normal University, Wuhan 430079, PR China.
International Journal of Systematic and Evolutionary Microbiology
|November 8, 2015
Summary
A novel bacterial species, Lactococcus nasutitermitis, was identified from the gut of the Nasutitermes hainanensis termite. This discovery expands our understanding of termite gut microbiota and Lactococcus diversity.
Area of Science:
- Microbiology
- Bacteriology
- Termite Gut Microbiome Research
Background:
- The gut microbiota of termites plays a crucial role in wood digestion.
- The genus Lactococcus comprises important lactic acid bacteria, primarily known from dairy environments.
Purpose of the Study:
- To characterize a novel bacterial isolate from the termite Nasutitermes hainanensis.
- To determine the phylogenetic and taxonomic placement of the novel isolate.
Main Methods:
- Phylogenetic analysis using 16S rRNA and housekeeping gene ropB sequences.
- Phenotypic characterization including Gram staining, motility, and growth conditions.
- Chemotaxonomic analysis of DNA G+C content and major fatty acids.
Main Results:
- Bacterial strain M19T, isolated from Nasutitermes hainanensis gut, showed phylogenetic relatedness to the Lactococcus genus.
- Strain M19T was phenotypically and chemotaxonomically distinct from known Lactococcus species.
- The DNA G+C content was 39.6 mol%, with specific major fatty acids identified.
Conclusions:
- Strain M19T represents a novel species within the Lactococcus genus.
- The proposed name for this new species is Lactococcus nasutitermitis sp. nov.
- This finding highlights the unexplored microbial diversity within termite guts.
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