Myxococcaceae | |
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Scientific classification ![]() | |
Domain: | Bacteria |
Phylum: | Myxococcota |
Class: | Myxococcia |
Order: | Myxococcales |
Family: | Myxococcaceae Jahn 1924 |
Genera | |
See text. | |
Synonyms | |
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Myxococcaceae is a family of gram-negative, rod-shaped bacteria. [1] The family Myxococcaceae is encompassed within the myxobacteria ("slime bacteria"). The family is ubiquitously found in soils, marine, and freshwater environments. Production of compounds with medical uses by Myxococcaceae makes them useful in human health fields.
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) [2] and National Center for Biotechnology Information (NCBI) [3]
16S rRNA based LTP_10_2024 [4] [5] [6] | 120 marker proteins based GTDB 09-RS220 [7] [8] [9] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Cells can be motile with gliding and swarming behavior. The vegetative cell shape in the Myxococcaceae family is long rods, which vary in size between members. The most common fruiting body morphs are soft hump and knob shaped with possible colors of yellow, peach, white, or orange depending on species. Myxococcaceae are spore producing bacteria and are delineated by their spore shape. The myxospores are oval to round and are optically refractive. [10] Quorum sensing (QS) behavior is limited in this family. However, there is evidence that some members of the family produce molecules that interrupt the QS of other microbes, behavior potentially useful in predation. [11]
Bacteria in the order of Myxococcales have led to scientific discoveries including the first genome to be sequenced, the primary observation of plasmid replication, and the first discovery of bacteriophage. Members of the Myxococcaceae produce a wide range of secondary metabolites having useful functions and applications. Compounds with anti-microbial, anti-parasitic, and in rare cases, anti-HIV activities have been isolated from the Myxococcaceae. [10]
The Actinomycetales is an order of Actinomycetota. A member of the order is often called an actinomycete. Actinomycetales are generally gram-positive and anaerobic and have mycelia in a filamentous and branching growth pattern. Some actinomycetes can form rod- or coccoid-shaped forms, while others can form spores on aerial hyphae. Actinomycetales bacteria can be infected by bacteriophages, which are called actinophages. Actinomycetales can range from harmless bacteria to pathogens with resistance to antibiotics.
The Spirochaetales are an order of spirochete bacteria. Some species within this order are known to causes syphilis, Lyme disease, relapsing fever, and other illnesses.
The Leptospiraceae are a family of spirochete bacteria. It includes the genus Leptospira which contains some pathogenic species.
The bacterial order Chlamydiales includes only obligately intracellular bacteria that have a chlamydia-like developmental cycle of replication and at least 80% 16S rRNA or 23S rRNA gene sequence identity with other members of Chlamydiales. Chlamydiales live in animals, insects, and protozoa.
The Spirochaetaceae are a family of spirochete bacteria. Some species within this family are known to causes syphilis, Lyme disease, relapsing fever, and other illnesses.
Caldicellulosiruptor is a genus of thermophilic, anaerobic, Gram-positive, non-spore forming bacteria. Originally placed within the highly polyphyletic class Clostridia, order Thermoanaerobacterales and family Thermoanaerobacterales Family III according to the NCBI and LPSN, it is now thought to lie outside of the Bacillota. Caldicellulosiruptor is known to degrade and ferment complex carbohydrates from plant matter, such as cellulose and hemicellulose, and certain species in the genus have been identified as potential candidates for biofuel production.
Cystobacter is a genus in the phylum Myxococcota (Bacteria).
Acidaminococcus is a genus in the phylum Bacillota (Bacteria), whose members are anaerobic diplococci that can use amino acids as the sole energy source for growth. Like other members of the class Negativicutes, they are gram-negative, despite being Bacillota, which are normally gram-positive.
Sporomusa is a genus of Bacillota bacteria classified within the class Negativicutes.
Megasphaera is a genus of Bacillota bacteria classified within the class Negativicutes.
Stigmatella is a bacterium genus in the phylum Myxococcota.
The class Holophagaceae is a family of strictly anaerobic Gram negative marine bacteria in the phylum Acidobacteriota.
Syntrophomonas is a bacterial genus from the family of Syntrophomonadaceae.
Desulfobotulus is a Gram-negative, anaerobic, non-spore-forming and motile bacteria genus from the family of Desulfobacteraceae.
Tessaracoccus is a Gram-positive, non-spore-forming, facultatively anaerobic and non-motile bacterial genus from the family Propionibacteriaceae.
Phycisphaeraceae is a family of bacteria.
Nocardioidaceae is a family of Gram-positive bacteria within the class Actinomycetia.
The Micrococcales are an order of bacteria in the phylum Actinomycetota.
Gemmatimonas is a Gram-negative, rod-shaped, motile and non-spore-forming genus of bacteria from the family of Gemmatimonaceae.
The Treponemataceae are a family of spirochete bacteria. The clade includes a number of significant pathogens, such as Treponemapallidum, the cause of human syphilis.