Sanguina nivaloides and Sanguina aurantia gen. et spp. nov. (Chlorophyta): the taxonomy, phylogeny, biogeography and ecology of two newly recognised algae causing red and orange snow

0508400 - BÚ 2020 RIV GB eng J - Journal Article
Procházková, L. - Leya, T. - Křížková, H. - Nedbalová, Linda
Sanguina nivaloides and Sanguina aurantia gen. et spp. nov. (Chlorophyta): the taxonomy, phylogeny, biogeography and ecology of two newly recognised algae causing red and orange snow.
FEMS Microbiology Ecology. Roč. 95, č. 6 (2019), č. článku fiz064. ISSN 0168-6496. E-ISSN 1574-6941
Institutional support: RVO:67985939
Keywords : snow algae * red snow * Chlamydomonas nivalis
OECD category: Plant sciences, botany
Impact factor: 3.675, year: 2019
Method of publishing: Open access

Melting snowfields in polar and alpine regions often exhibit a red and orange colouration caused by microalgae. The diversity of these organisms is still poorly understood. We applied a polyphasic approach using three molecular markers and light and electron microscopy to investigate spherical cysts sampled from alpine mountains in Europe, North America and South America as well as from both polar regions. Molecular analyses revealed the presence of a single independent lineage within the Chlamydomonadales. The genus Sanguina is described, with Sanguina nivaloides as its type. It is distinguishable from other red cysts forming alga by the number of cell wall layers, cell size, cell surface morphology and habitat preference.
Permanent Link: http://hdl.handle.net/11104/0299316