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Article
Published: 2022-01-10

Mallomonas voloshkoae sp. nov. (Synurales, Chrysophyceae) and distribution of M. pechlaneri in mountain lakes of Siberia

К.А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Botanical Street 35, 127276, Moscow, Russia
Department of Botany, Charles University, Benatska 2, 128 00 Praha 2, Czech Republic
К.А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Botanical Street 35, 127276, Moscow, Russia
Synurales Mallomonas Striatae scale ultrastructure new species Russia Altay East Sayan Transbaikal area Algae

Abstract

Mallomonas voloshkoae sp. nov. was described from Russia based on silica-scale morphology studied by means of transmission and scanning electron microscopy. This species belongs to the section Striatae and is characterised by scales with wide anterior flanges, forming wing-like extensions. This species is most similar in scale ultrastructure to M. pechlaneri. Mallomonas voloshkoae was reported in four mountain lakes of the Transbaikal area and was found in acidic to slightly acidic conditions with very low values of specific conductance. Mallomonas pechlaneri was reported in Russia for the first time. This is the first record of this species after the description of this taxon in Europe. Mallomonas pechlaneri was found in three oligotrophic habitats in the Altay and Sayan Mountain areas.

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