Bacterie-fylum Verrucomicrobia

The phylum Verrucomicrobiota is classified into four orders, with most species classified in the order Verrucomicrobiales.

Species in this phylum are obligate or facultatively aerobic bacteria widely distributed across various environments, including freshwater, marine habitats, forest soils, and agricultural lands.

Verrucomicrobiota species contribute to carbon cycling. Many species ferment sugars, while aerobic methanotrophs like the genus Methylacidiphilum oxidize methane.

Interestingly, species in Verrucomicrobiota possess membrane-bound cytoplasmic extensions called prosthecae. These appendages are supported by peptidoglycan in their cell walls.

The genera Verrucomicrobium and Prosthecobacter are notable for producing multiple prosthecae on each cell.

They undergo symmetrical cell division, resulting in both mother and daughter cells possessing prosthecae at the time of division.

Prosthecobacter species have two genes that exhibit significant homology to the genes encoding tubulin in eukaryotic cells. But their function remains unclear, as no eukaryotic-like cytoskeleton has been observed in these bacteria.