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Updated: Jan 20, 2026

4D Microscopy of Yeast
Published on: April 28, 2019
Anhydrobiosis in yeasts: Glutathione synthesis by yeast Ogataea (Hansenula) polymorpha cells after their
Olena Kurylenko1, Linda Rozenfelde2, Galina Khroustalyova2
1Department of Molecular Genetics and Biotechnology, Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov Street, 14/16, Lviv 79005 Ukraine; Latvian - Ukrainian Joint International Laboratory of Microbial Cell Biology, Jelgavas Str., 1, Riga LV-1004, Latvia, Drahomanov Street, 14/16, Lviv 79005 Ukraine.
Abstract:
The possibility of using active dry microbial preparations in biotechnological processes is essential for the development of new modern industrial technologies. In this study, we show the possibility of obtaining such preparations of the genetically engineered yeast strain Ogataea (Hansenula) polymorpha with glutathione overproduction. Special pre-treatment involving the gradual rehydration of dry cells in water vapour led to the restoration/reactivation of almost 100% of dehydrated cells. Furthermore, dry cells do not lose their viability during storage at room temperatures. Application of dry cells as the inoculum provides the same levels of glutathione synthesis as that of a native yeast culture.
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