rakkude kogum, millel on ühine päritolu ja ühesugused püsivad tunnused (bakterid, seened, muud mikroorganismid, mille diameeter on alla 100 mikromeetri)
The title of an invention concerning a micro-organism strain or a vegetable or animal cell culture must include its Latin generic and specific name, together with the name(s) of the author(s), and the type and application of the strain.