Ecophysiology of <i>Chloromonas hindakii</i> sp. nov. (Chlorophyceae), Causing Orange Snow Blooms at Different Light Conditions.

ABSTRACT: Slowly melting snowfields in mountain and polar regions are habitats of snow algae. Orange blooms were sampled in three European mountain ranges. The cysts within the blooms morphologically resembled those of Chloromonas nivalis (Chlorophyceae). Molecular and morphological traits of field and cultured material showed that they represent a new species, Chloromonas hindakii sp. nov. The performance of photosystem II was evaluated by fluorometry. For the first time for a snow alga, cyst stages collected in a wide altitudinal gradient and the laboratory strain were compared. The results showed that cysts were well adapted to medium and high irradiance. Cysts from high light conditions became photoinhibited at three times higher irradiances (600 µmol photons m^-2 s^-

SUBMITTER: Prochazkova L 

PROVIDER: S-EPMC6843554 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature