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Issue: Vol. 662 No. 3: 13 Aug. 2024
Type: Article
Published: 2024-08-13
DOI: 10.11646/phytotaxa.662.3.2
Page range: 224-238
Abstract views: 52
PDF downloaded: 3

Morphology, phylogenetic position and distribution of Mallomonas mangofera and Mallomonas foveata comb. et stat. nov. (Synurales, Chrysophyceae)

A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russia, Joint Vietnam-Russia Tropical Science and Technology Research Center, 63 Nguyen Van Huyen, Nghia Do, Cau Giay, Ha Noi, 11307, Vietnam
A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russia
T.I. Vyazemsky Karadag Scientific Station, Natural Reserve of the Russian Academy of Sciences, Nauki street 24, Kurortnoe, Feodosiya, 298188, Russia
Moscow Institute of Physics and Technology, Dolgoprudny, 141701, Russia
Synurales Mallomonas section Torquatae scale ultrastructure molecular phylogeny new combination Algae

Abstract

Strains of Mallomonas mangofera var. mangofera and M. mangofera var. foveata from Russia and Vietnam were studied. Their phylogenetic position was revealed using the SSU rDNA + rbcL cpDNA dataset. The ultrastructure of scales and bristles was studied using transmission and scanning electron microscopy. Based on these studies, a new combination was proposed: Mallomonas foveata comb. et stat. nov. The problems associated with the identification of Mallomonas mangofera and determination of the scale morphotype belonging to this taxon are discussed, and a new emended formal description and holotype are proposed. Based on the literature data and metabarcoding results, the distribution of Mallomonas mangofera and Mallomonas foveata was revised. Mallomonas mangofera has been recorded mainly in the temperate zone of Eurasia, North America and Japan. Mallomonas foveata has a wider distribution and is more often observed in regions with a warm climate.

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