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Stud Mycol 61(1): 67-75 2008
DOI: 10.3114/sim.2008.61.06
Copyright © 2008 CBS Fungal Biodiversity Centre
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Adaptation of extremely halotolerant black yeast Hortaea werneckii to increased osmolarity: a molecular perspective at a glance

A. Plemenitas1,*, T. Vaupotic1, M. Lenassi1, T. Kogej2 and N. Gunde-Cimerman2

1 University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Vrazov Trg 2, 1000 Ljubljana, Slovenia
2 University of Ljubljana, Biotechnical Faculty, Department of Biology, Ljubljana, Slovenia

* Correspondence: Ana Plemenitas, ana.plemenitas{at}mf.uni-lj.si

Halophilic adaptations have been studied almost exclusively on prokaryotic microorganisms. Discovery of the black yeast Hortaea werneckii as the dominant fungal species in hypersaline waters enabled the introduction of a new model organism to study the mechanisms of salt tolerance in eukaryotes. Its strategies of cellular osmotic adaptations on the physiological and molecular level revealed novel, intricate mechanisms to combat fluctuating salinity. H. werneckii is an extremely halotolerant eukaryotic microorganism and thus a promising source of transgenes for osmotolerance improvement of industrially important yeasts, as well as in crops.

Keywords Compatible solutes / differential gene expression / Hal2 / halophile / HOG signaling pathway / Hortaea werneckii / hypersaline water / ions / melanin




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