Agromyces insulae is a species of Gram-positive, aerobic bacterium belonging to the genus Agromyces. It was first described in 2007 by Kim et al., who isolated it from seashore soil collected from Jeju Island, South Korea. The species epithet "insulae" (Latin for "of an island") refers to its geographic origin.
Classification
- Domain: Bacteria
- Phylum: Actinomycetota (formerly Actinobacteria)
- Class: Actinomycetia
- Order: Micrococcales
- Family: Microbacteriaceae
- Genus: Agromyces
- Species: A. insulae
Characteristics
- A. insulae cells are non-motile, pleomorphic rods.
- They are obligate aerobes, meaning they require oxygen for growth.
- The bacterium is Gram-positive and typically stains positive for catalase and oxidase enzymatic activities.
- Its cell wall peptidoglycan contains LL-diaminopimelic acid as a characteristic diamino acid.
- The predominant menaquinone is MK-12, a type of vitamin K2 often found in Gram-positive bacteria.
- Major cellular fatty acids include anteiso-C15:0 and iso-C16:0, which are common in Actinomycetota.
- The DNA G+C content is high, typically around 70 mol%, a common feature among members of the Actinomycetota.
- It grows optimally at moderate temperatures (mesophilic range).
Habitat and Significance
- A. insulae was initially found in seashore soil, indicating its adaptation to environments that may experience fluctuations in salinity and specific nutrient availability.
- Like other members of the Agromyces genus, A. insulae is primarily a soil bacterium. Members of this genus are known for their metabolic versatility and are thought to play roles in the decomposition of complex organic matter and nutrient cycling within soil ecosystems. While specific biotechnological applications or widespread ecological impacts of A. insulae itself have not been extensively documented beyond its initial characterization, the genus Agromyces is a subject of ongoing research due to its potential in areas such as bioremediation, plant growth promotion, and the production of novel enzymes.
Type Strain
- The type strain for Agromyces insulae is KCTC 19047T, which is also deposited in other culture collections under the designations NBRC 101880T and CECT 7183T.
References
- Kim, K. K., Lee, K. C., Kang, S. J., & Lee, J. S. (2007). Agromyces insulae sp. nov., a novel actinobacterium isolated from a seashore soil. International Journal of Systematic and Evolutionary Microbiology, 57(Pt 5), 1083-1087.