Darienko, Tatyana M.

[["dc.bibliographiccitation.firstpage","921"],["dc.bibliographiccitation.journal","Frontiers in Physiology"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Bajerski, Felizitas"],["dc.contributor.author","Stock, Johanna"],["dc.contributor.author","Hanf, Benjamin"],["dc.contributor.author","Darienko, Tatyana"],["dc.contributor.author","Heine-Dobbernack, Elke"],["dc.contributor.author","Lorenz, Maike"],["dc.contributor.author","Naujox, Lisa"],["dc.contributor.author","Keller, E. R. J."],["dc.contributor.author","Schumacher, H. M."],["dc.contributor.author","Friedl, Thomas"],["dc.contributor.author","Eberth, Sonja"],["dc.contributor.author","Mock, Hans-Peter"],["dc.contributor.author","Kniemeyer, Olaf"],["dc.contributor.author","Overmann, Jörg"],["dc.date.accessioned","2019-07-22T14:46:42Z"],["dc.date.available","2019-07-22T14:46:42Z"],["dc.date.issued","2018"],["dc.description.abstract","In many natural environments, organisms get exposed to low temperature and/or to strong temperature shifts. Also, standard preservation protocols for live cells or tissues involve ultradeep freezing in or above liquid nitrogen (-196°C or -150°C, respectively). To which extent these conditions cause cold- or cryostress has rarely been investigated systematically. Using ATP content as an indicator of the physiological state of cells, we found that representatives of bacteria, fungi, algae, plant tissue, as well as plant and human cell lines exhibited similar responses during freezing and thawing. Compared to optimum growth conditions, the cellular ATP content of most model organisms decreased significantly upon treatment with cryoprotectant and cooling to up to -196°C. After thawing and a longer period of regeneration, the initial ATP content was restored or even exceeded the initial ATP levels. To assess the implications of cellular ATP concentration for the physiology of cryostress, cell viability was determined in parallel using independent approaches. A significantly positive correlation of ATP content and viability was detected only in the cryosensitive algae Chlamydomonas reinhardtii SAG 11-32b and Chlorella variabilis NC64A, and in plant cell lines of Solanum tuberosum. When comparing mesophilic with psychrophilic bacteria of the same genera, and cryosensitive with cryotolerant algae, ATP levels of actively growing cells were generally higher in the psychrophilic and cryotolerant representatives. During exposure to ultralow temperatures, however, psychrophilic and cryotolerant species showed a decline in ATP content similar to their mesophilic or cryosensitive counterparts. Nevertheless, psychrophilic and cryotolerant species attained better culturability after freezing. Cellular ATP concentrations and viability measurements thus monitor different features of live cells during their exposure to ultralow temperatures and cryostress."],["dc.identifier.doi","10.3389/fphys.2018.00921"],["dc.identifier.pmid","30065659"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61835"],["dc.language.iso","en"],["dc.notes.intern","DeepGreen Import"],["dc.publisher","Frontiers Media S.A."],["dc.relation.eissn","1664-042X"],["dc.relation.issn","1664-042X"],["dc.rights","http://creativecommons.org/licenses/by/4.0/"],["dc.title","ATP Content and Cell Viability as Indicators for Cryostress Across the Diversity of Life"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","573"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Extremophiles"],["dc.bibliographiccitation.lastpage","586"],["dc.bibliographiccitation.volume","23"],["dc.contributor.author","Darienko, Tatyana"],["dc.contributor.author","Kang, Woojean"],["dc.contributor.author","Orzechowski, Aleksander K."],["dc.contributor.author","Pröschold, Thomas"],["dc.date.accessioned","2020-12-10T14:11:06Z"],["dc.date.available","2020-12-10T14:11:06Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1007/s00792-019-01108-5"],["dc.identifier.eissn","1433-4909"],["dc.identifier.issn","1431-0651"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16695"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/70965"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Pleurastrosarcina terriformae, a new species of a rare desert trebouxiophycean alga discovered by an integrative approach"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","240"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Diversity"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Spanner, Christian"],["dc.contributor.author","Darienko, Tatyana"],["dc.contributor.author","Biehler, Tracy"],["dc.contributor.author","Sonntag, Bettina"],["dc.contributor.author","Pröschold, Thomas"],["dc.date.accessioned","2021-04-14T08:25:07Z"],["dc.date.available","2021-04-14T08:25:07Z"],["dc.date.issued","2020"],["dc.description.sponsorship","Austrian Science Fund"],["dc.identifier.doi","10.3390/d12060240"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81525"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.publisher","MDPI"],["dc.relation.eissn","1424-2818"],["dc.rights","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Endosymbiotic Green Algae in Paramecium bursaria: A New Isolation Method and a Simple Diagnostic PCR Approach for the Identification"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Phytotaxa"],["dc.bibliographiccitation.lastpage","041"],["dc.bibliographiccitation.volume","324"],["dc.contributor.author","DARIENKO, TATYANA"],["dc.contributor.author","PRÖSCHOLD, THOMAS"],["dc.date.accessioned","2019-12-17T10:47:16Z"],["dc.date.accessioned","2021-10-27T13:11:33Z"],["dc.date.available","2019-12-17T10:47:16Z"],["dc.date.available","2021-10-27T13:11:33Z"],["dc.date.issued","2017"],["dc.description.abstract","Phylogenetic analyses of SSU rDNA sequences have shown that coccoid and filamentous green algae are distributed among all classes of the Chlorophyta. One of these classes, the Ulvophyceae, mostly contains marine seaweeds and microalgae. However, new studies have shown that there are filamentous and sarcinoid freshwater and terrestrial species (including symbionts in lichens) among the Ulvophyceae, but very little is known about these species. Ultrastructural studies of some of them have confirmed that the flagellar apparatus of zoospores (counterclockwise basal body orientation) is typical for the Ulvophyceae. In addition to ultrastructural features, the presence of a “Codiolum”-stage is characteristic of some members of this algal class. We studied more than 50 strains of freshwater and terrestrial ulvophycean microalgae obtained from the different public culture collection and our own isolates using an integrative approach. Three independent lineages of the Ulvophyceae containing terrestrial species were revealed by these methods. Unexpectedly each of these lineages contained several isolates that morphologically developed a high degree of phenotypic plasticity, and included hidden phylogenetic diversity that let us to the description of several new genera and species."],["dc.identifier.doi","10.11646/phytotaxa.324.1.1"],["dc.identifier.eissn","1179-3163"],["dc.identifier.issn","1179-3155"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17000"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91604"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.eissn","1179-3163"],["dc.relation.issn","1179-3163"],["dc.relation.issn","1179-3155"],["dc.relation.orgunit","Fakultät für Biologie und Psychologie"],["dc.rights","CC BY 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/3.0"],["dc.subject.ddc","570"],["dc.title","Toward a monograph of non-marine Ulvophyceae using an integrative approach (Molecular phylogeny and systematics of terrestrial Ulvophyceae II.)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","200"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Diversity"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Pröschold, Thomas"],["dc.contributor.author","Pitsch, Gianna"],["dc.contributor.author","Darienko, Tatyana"],["dc.date.accessioned","2021-04-14T08:26:25Z"],["dc.date.available","2021-04-14T08:26:25Z"],["dc.date.issued","2020"],["dc.description.sponsorship","Austrian Science Fund"],["dc.identifier.doi","10.3390/d12050200"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81936"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.publisher","MDPI"],["dc.relation.eissn","1424-2818"],["dc.rights","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Micractinium tetrahymenae (Trebouxiophyceae, Chlorophyta), a New Endosymbiont Isolated from Ciliates"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]