title: Diurnal dynamics of CO2 assimilation in some lichens of the transural forest tundra.
mesh_terms: D002245:Carbon Dioxide / Q000378:metabolism*; D002250:Carbon Radioisotopes; D002940:Circadian Rhythm; D003081:Cold Climate; D008011:Lichens / Q000378:metabolism*; D010788:Photosynthesis; D014197:Trees; D014586:USSR
chemical_list: D002250:Carbon Radioisotopes; D002245:Carbon Dioxide