''Kutzneria'' is a genus of

bacteria Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr ...

in the phylum

Actinomycetota The Actinomycetota (or Actinobacteria) are a diverse phylum of Gram-positive bacteria with high GC content. They can be terrestrial or aquatic. They are of great importance to land flora because of their contributions to soil systems. In soil t ...

. This genus was named after Hans-Jürgen Kutzner, a German microbiologist.Brock Biology of Microorganisms; Madigan (et al.); Pearson Education Inc., 2003; Appendix 2, pg. A-12.

Morphology & Biology

''Kutzneria'' are non-motile, aerobic, mesophilic, thermotolerant, Gram positive, chemo-organotrophs. They have stable, branched, cottony aerial

mycelium Mycelium (: mycelia) is a root-like structure of a fungus consisting of a mass of branching, thread-like hyphae. Its normal form is that of branched, slender, entangled, anastomosing, hyaline threads. Fungal colonies composed of mycelium are fo ...

. Their cell walls contain N-acetylated

muramic acid Muramic acid is an amino sugar acid. In terms of chemical composition, it is the ether of lactic acid and glucosamine. It occurs naturally as ''N''-acetylmuramic acid in peptidoglycan, whose primary function is a structural component of many t ...

and meso-diaminopimelic acid. They produce

spores In biology, a spore is a unit of sexual (in fungi) or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plant ...

which are either cocci, bacilli or oval. They are long sporangiophores measuring up to 50 micrometres which are formed by septation of coiled, unbranched

hyphae A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one o ...

within the sporangiophores.

Species

Some of the species are: # ''Kutzneria albida''; first described by Furumai, Ogawa, and Okuda in 1968, # ''Kutzneria kofuensis''; first described by Nonomura and Ohara 1969 (named after Kofu, a district in Japan, where the organism was isolated), # ''Kutzneria viridogrisea''; first described by Okuda, Furumai, Watanabe, Okugawa, and Kimura in 1966. These species were previously classified under the family ''Streptosporangiaceae'' (suborder ''Streptosporangineae'') and were known as ''Streptosporangium albidum'', ''Streptosporangium viridogriseum'' (subspecies kofuense), and ''Streptosporangium viridogriseum'', respectively.

Morphology & Biology

Species

References

Further reading