Description of the New Species Mallomonas limbata sp. nov. (Synurales, Chrysophyceae) from Water Bodies of Vietnam

A new species, Mallomonas limbata sp. nov., is described from Vietnam. The description is based on silica-scale morphology studied by means of transmission and scanning electron microscopy. The species belongs to the section Planae and has a similar morphology with species from the Mallomonas matvie...

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Bibliographic Details
Published in:Inland water biology 2024-02, Vol.17 (1), p.82-89
Main Authors: Safronova, T. V., Gusev, E. S., Thi, L. Nguyen
Format: Article
Language:English
Subjects:
Biodiversity
Biomedical and Life Sciences
Chrysophyceae
Electron microscopy
Freshwater & Marine Ecology
Geoecology/Natural Processes
habitats
inland waters
Life Sciences
Mallomonas
Morphology
New species
Papillae
Scanning electron microscopy
Silica
Silicon dioxide
species
Vietnam
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Description
Summary:A new species, Mallomonas limbata sp. nov., is described from Vietnam. The description is based on silica-scale morphology studied by means of transmission and scanning electron microscopy. The species belongs to the section Planae and has a similar morphology with species from the Mallomonas matvienkoae complex. The new species has ovoid scales, narrowed distally, and a developed secondary silica layer with internal reticulation with rounded meshes, occupying up to 4/5 of the scale surface, with numerous papillae on the surface. Scales of M. limbata have been found at 26 localities in 9 provinces of Vietnam. The distributions and habitat conditions of the new species are summarized.
ISSN:1995-0829
1995-0837
DOI:10.1134/S1995082924010139