A new species of Desmodesmus sp. from high altitude area was discovered and its isolated, purification, amplification culture and species identification were studied

Plateau microalgae play a key role in maintaining water quality in these lakes and rivers on the Qinghai-Tibet plateau,Plateau microalgae have wide application prospects in environmental purification, biotechnology, medicine and cosmetics,,food industry and renewable energy.In order to get the high biomass of microalgae that exist in nature,A microalgae with the largest biomass was screened from natural water samples by filtration, preculture and plate scribing separation.A microalgae with the largest biomass was screened from natural water samples by filtering first, pre-culturing and agar plate scribing separation,Identified by 18S rRNA as Desmodesmus sp.