The Actinomycetota are a diverse phylum of Gram-positive bacteria with high G+C content. They can be terrestrial or aquatic. They are of great economic importance to humans because agriculture and forests depend on their contributions to soil systems. In soil they help to decompose the organic matter of dead organisms so the molecules can be taken up anew by plants. While this role is also played by fungi, Actinomycetota are much smaller and likely do not occupy the same ecological niche. In this role the colonies often grow extensive mycelia, like a fungus would, and the name of an important order of the phylum, Actinomycetales, reflects that they were long believed to be fungi. Some soil actinomycetota live symbiotically with the plants whose roots pervade the soil, fixing nitrogen for the plants in exchange for access to some of the plant's saccharides. Other species, such as many members of the genus Mycobacterium, are important pathogens.
Micromonosporaceae is a family of bacteria of the class Actinomycetia. They are gram-positive, spore-forming soil organisms that form a true mycelium.
The family Micrococcaceae includes bacterial genera of Gram positive cocci that inhabit the air and skin, such as Micrococcus luteus.
The Actinomycetia are a class of bacteria.
The Bifidobacteriaceae are the only family of bacteria in the order Bifidobacteriales. According to the 16S rRNA-based LTP release 106 published by 'The All-Species Living Tree' Project, the order Bifidobacteriales is a clade nested within the suborder Micrococcineae, also the genus Bifidobacterium is paraphyletic to the other genera within the family, i.e. the other genera are nested within Bifidobacterium.
Streptomycetaceae is a family of Actinomycetota, making up the monotypic order Streptomycetales. It includes the important genus Streptomyces. This was the original source of many antibiotics, namely streptomycin, the first antibiotic against tuberculosis.
Methanococcus is a genus of coccoid methanogens of the family Methanococcaceae. They are all mesophiles, except the thermophilic M. thermolithotrophicus and the hyperthermophilic M. jannaschii. The latter was discovered at the base of a “white smoker” chimney at 21°N on the East Pacific Rise and it was the first archaeal genome to be completely sequenced, revealing many novel and eukaryote-like elements.
Microbacteriaceae is a family of bacteria of the order Actinomycetales. They are Gram-positive soil organisms.
The Pseudonocardiaceae are a family of bacteria in the order Actinomycetales and the only member of the suborder Pseudonocardineae.
The phylum Elusimicrobiota, previously known as "Termite Group 1", has been shown to be widespread in different ecosystems like marine environment, sewage sludge, contaminated sites and soils, and toxic wastes. The high abundance of Elusimicrobiota representatives is only seen for the lineage of symbionts found in termites and ants.
Winkia neuii is a species of Gram-positive, rod-shaped bacteria within the genus Winkia. It is known to live commensally on and within humans as part of normal, healthy microbiota of the human vagina
The Dermatophilaceae is a Gram-positive family of bacteria placed within the order of Actinomycetales. Dermatophilaceae bacteria occur on animal and human skin and in fish guts.
The Mycobacteriales are an order of bacteria.
The Propionibacteriales are an order of bacteria.
The Micrococcales are an order of bacteria in the phylum Actinomycetota.
Balneolales is an order of bacteria.
Bowdeniella is a species of bacteria from the family of Actinomycetaceae which was isolated from a human nose.
Gleimia is a genus of bacteria from the family of Actinomycetaceae.
Pauljensenia hongkongensis is a Gram-positive, strictly anaerobic and non-spore-forming species of bacteria from the family Actinomycetaceae.
