Abstract 1852 Exploring the role of methane-producing archaea in One Health

Methane-producing microorganisms from Domain Archaea (methanogenic archaea) are crucial in nutrient cycling because methane is the end-product of microbial decomposition of organic matter in the absence of oxygen, but also because methane is a potent greenhouse gas and balances the Earth's climate. Methanogenic archaea are free-living organisms that typically live in sediments of diverse free-oxygen environments, but recently few species have been also found in host-associated microbiomes, including the gut, skin, mouth, and respiratory tract of humans and other animals.