Cryptomonas uralensis Martynenko, Gusev, Kulizin & Guseva, 2020

Martynenko, Nikita A., Gusev, Evgeniy S., Kulizin, Pavel V., Guseva, Elena E., McCartney, Kevin & Kulikovskiy, Maxim S., 2020, A new species of Cryptomonas (Cryptophyceae) from the Western Urals (Russia), European Journal of Taxonomy 649, pp. 1-12 : 5

Cryptomonas uralensis Martynenko, Gusev, Kulizin & Guseva sp. nov.

Figs 2–12

Diagnosis

Cells (absolute minimal and maximal values of strain UR168) 15–26 µm long, 8–17 µm wide, 8–12 µm thick. Cells more or less flattened in dorso-ventral plane, in ventral view elliptical to ovoid. In lateral view with oblique or rounded apex and rounded antapex. One plastid with two to four pyrenoids. Species differs from other species of the genus by the order of nucleotides in nuclear ITS2, LSU and SSU rDNA gene sequences.

Etymology

The species name derived from “Ural”, the region from which this taxon was described.

Type material

Holotype

RUSSIA • Solikamsk town , water-body in the Usolka River flood plain; 59°38′59″ N, 56°44′57″ E; 2014; collected by N.A. Martynenko; strain UR168; GenBank MN509781 , MN509779 ; MHA [ Cryptomonas uralensis Russia Martynenko 20-2 MHA, strain UR168].

The holotype is a large drop of unfixed dried cells of the strain UR168 (= IPPAS H-2046) on water colour paper (hic designatus), deposited at MHA (Herbarium, Main Botanical Garden, Botanicheskaya Str. 4, Moscow, 127276, Russia) under the designation Cryptomonas uralensis Russia Martynenko 20-2 MHA, strain UR168. Representative living strain and DNA sample are kept at IPPAS.

Representative DNA sequences

GenBank accession numbers MN 509781 (nuclear ITS 2 and partial nuclear LSU rDNA), and MN 509779 (nuclear SSU rDNA).

Authentic strain

UR168 (= IPPAS H-2046).

Type locality A water-body in the Usolka River flood plain, Solikamsk town, Russia. Latitude/Longitude 59°38′59″ N,

56°44′57″ E, collected by N.A. Martynenko in 2014.

Other representative culture

UR167, GenBank accession numbers MN 509780 (nuclear ITS 2 and partial nuclear LSU rDNA), and MN 509778 (nuclear SSU rDNA).

Geographical distribution

To date, Cryptomonas uralensis sp. nov. has only been observed at the type locality. At the time of collection, the pH was 6.5, temperature 18°C.

Figures

Figs 2–12. Light micrographs of Cryptomonas uralensis Martynenko, Gusev, Kulizin & Guseva sp. nov. (strain UR168). 2–3. Lateral view (left side). 4–5. Lateral view (right side). 6–8. Ventral view. 9. Dorsal view. 10–11. Apical view. 12. Cells of the strain UR168 in mucilage. Scale bars: 10 µm.