| Komagataella ulmi | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Saccharomycetes |
| Order: | Saccharomycetales |
| Family: | Phaffomycetaceae |
| Genus: | Komagataella |
| Species: | K. ulmi |
| Binomial name | |
| Komagataella ulmi Kurtzman, 2012 | |
Komagataella ulmi is a ascomycetous species of fungi that occurs as a yeast.
Komagataella ulmi was first described as a unique species in 2012 from a sample collected in 1945 from an American elm ( Ulmus americana ) in Peoria, Illinois. [1] It was differentiated from previously discovered species via DNA sequencing. It was discovered alongside its close relative, Komagataella populi , bringing the number of known species at the time within Komagataella from three to five. [1]
Komagataella ulmi, when grown on YM agar, has been described as "spherical... to short ellipsoidal", with widths ranging from 2-7 μm. [1] Cells occur alone or in pairs. Within asci, growth of 1-4 hat-shaped ascospores has been reported. K. ulmi has the ability to ferment glucose and trehalose; other common sugars are not fermented. It is capable of weak growth at 37°C. [1]
K. ulmi has been discovered in Illinois, Missouri, and California. In addition to the American elm, it has been isolated from tree species such as cork oak ( Quercus suber ), valley oak ( Quercus lobata ), and sugar maple ( Acer saccharum ). [2]
Within Komagataella, K. ulmi is most closely related to Komagataella pastoris . [2] [3]