Number of the records: 1
The ice nucleation activity of extremophilic algae
- 1.0397593 - BÚ 2014 RIV GB eng J - Journal Article
Kvíderová, Jana - Hájek, J. - Worland, M. R.
The ice nucleation activity of extremophilic algae.
Cryo-letters. Roč. 34, č. 2 (2013), s. 137-148. ISSN 0143-2044. E-ISSN 1742-0644
R&D Projects: GA AV ČR KJB601630808; GA AV ČR KJB600050708
Institutional support: RVO:67985939
Keywords : Ice nucleation * snow algae * lichen photobionts
Subject RIV: EF - Botanics
Impact factor: 0.640, year: 2013
The ice nucleation activity was examined in snow algae, Chlamydomonas cf. nivalis and Chloromonas nivalis, and in lichen photobionts, Trebouxia asymmetrica, Trebouxia erici and Trebouxia glomerata. A mesophilic strain, Chlamydomonas reinhardtii, was used as a reference. The algae had lower ice nucleation activity, with the exception of Chloromonas nivalis contaminated by bacteria. The supercooling points of the snow algae were higher than those of lichen photobionts. The supercooling points of both, mesophilic and snow Chlamydomonas strains were similar. The lower freezing temperatures of the lichen algae may reflect either the more extreme and more variable environmental conditions of the original localities or the different cellular structure of the strains examined.
Permanent Link: http://hdl.handle.net/11104/0228970
Number of the records: 1