Spiroplasma kunkelii

Spiroplasma kunkelii
Corn stunt Spiroplasma in phloem cells. Thick section (0.4 micrometers) observed in a TEM. Magnified 75,000X.
Scientific classification
Domain: Bacteria
Kingdom: Bacillati
Phylum: Mycoplasmatota
Class: Mollicutes
Order: Mycoplasmatales
Family: Mycoplasmataceae
Genus: Spiroplasma
Species:
S. kunkelii
Binomial name
Spiroplasma kunkelii
Whitcomb, Chen et al.

Spiroplasma kunkelii is a species of Mollicutes, which are small bacteria that all share a common cell wall-less feature. They are characterized by helical and spherical morphology, they actually have the ability to be spherical or helical depending on the circumstances. The cells movement is bound by a membrane. The cell size ranges from 0.15 to 0.20 micrometers.