Laboratory of Microbial Symbiosis · Changwon National University

Ecology and Evolution
of Symbiosis

We study the ecology and evolution of the associations microbes form with their hosts.

Our study systems include lichens, matsutake and other forest fungi, terrestrial arthropods, and aquaculture environments. We combine field survey, culture, omics analysis and taxonomic description.

We use the term symbiosis in its broad sense. It covers commensal and antagonistic associations as well as mutualisms.

Working across distantly related hosts lets us separate host-specific phenomena from patterns that recur across symbioses.

QUESTIONS

Research questions

What lives together?

Diversity and taxonomy of symbiotic organisms

We collect in the field, isolate and culture microbes, and describe new species using morphological and molecular phylogenetic evidence. We also sequence genomes and check how far published sequence data can be trusted.

How, and under what conditions, do they live together?

Function and ecological context of symbiotic interactions

We examine what hosts and microbes do to one another using culture experiments and community analysis. The same association changes with climate, season and habitat, so we follow those changes as well.

How did these associations arise?

Origin and evolution of symbiosis

We trace how symbiotic organisms diverged and spread, using phylogenetics, population genetics and genomic data.

STUDY SYSTEMS

Study systems

Lichens

Lichen-forming fungi, their photobionts, and the endolichenic fungi that live alongside them

Pine mushroom

How bacteria and microfungi of the fairy ring promote or suppress Tricholoma matsutake growth

Diversity and community patterns

Mycorrhizal and forest fungal communities, species description, genomes, and data reliability

Animals

Fungi of terrestrial isopods, spiders and insects, and microbial communities of aquaculture systems