| 1. |
- Aeberhard, Marc, et al.
(författare)
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Luxury Relevance of Selected Megatrends in Tourism
- 2020
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Ingår i: Luxury Tourism. - Cham : Springer. - 9783030598921 - 9783030598938 ; , s. 213-244
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Bokkapitel (refereegranskat)abstract
- Sustainability, digitalization, demographic change, and health are some of the most important megatrends in the tourism sector. The contributions in this chapter, therefore, focus on their relevance in the context of luxury travel. Four authors have their say, based on their many years of practical experience in the various fields, who can give a profound account of the specific characteristics of these megatrends and why they are relevant. Stefan Gössling concisely describes from a human ecological perspective whether luxury tourism is compatible with the sustainable use of resources and ecosystems. Marc Aeberhard discusses in his contribution whether the immaterial part of the phenomenon of luxury is compatible with the demands for more and more digitalization. Jörg Meurer vividly demonstrates how demographic change is creating new target groups for luxury and premium brands and how these target groups are gaining a completely new and exciting relevance. Finally, Mario Krause places the aspect of health as an immaterial factor in relation to luxury (and travel), setting an important accent as a counterpoint to the ubiquitous phenomenon of wellness.
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| 2. |
- Chen, Yang-Er, et al.
(författare)
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The Low Molecular Mass Photosystem II Protein PsbTn is Important for Light Acclimation
- 2019
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Ingår i: Plant Physiology. - Rockville : American Society of Plant Biologists. - 0032-0889 .- 1532-2548. ; 179:4, s. 1739-1753
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Tidskriftsartikel (refereegranskat)abstract
- Photosystem II (PSII) is a supramolecular complex containing over 30 protein subunits and a large set of cofactors including various pigments and quinones as well as Mn, Ca, Cl, and Fe ions. Eukaryotic PSII complexes contain many subunits not found in their bacterial counterparts, including the proteins PsbP, PsbQ, PsbS, and PsbW, as well as the highly homologous, low molecular mass subunits PsbTn1 and PsbTn2 whose function is currently unknown. To determine the function of PsbTn1 and PsbTn2, we generated single and double psbTn1 and psbTn2 knock-out mutants in Arabidopsis thaliana. Cross-linking and reciprocal co-immunoprecipitation experiments revealed that PsbTn is a lumenal PSII protein situated next to the cytochrome b559 subunit PsbE. The removal of the PsbTn proteins decreased the oxygen evolution rate and PSII core phosphorylation level but increased the susceptibility of PSII to photoinhibition and the production of reactive oxygen species. The assembly and stability of PSII were unaffected, indicating that the deficiencies of the psbTn1 psbTn2 double mutants are due to structural changes. Double mutants exhibited a higher rate of non-photochemical quenching of excited states than the wild type and single mutants, as well as slower state transition kinetics and a lower quantum yield of PSII when grown in the field. Based on these results, we propose that the main function of the PsbTn proteins is to enable PSII to acclimate to light shifts or intense illumination.
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| 3. |
- Gössling, Stefan, et al.
(författare)
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Luxusrelevanz ausgewählter Megatrends im Tourismus
- 2019
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Ingår i: Grundlagen und neue Perspektiven des Luxustourismus. - Wiesbaden : Springer. - 9783658250638 - 9783658250645 ; , s. 223-255
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Bokkapitel (refereegranskat)abstract
- Über die vielfältigen Gesichter von Luxus widmet sich der Autor insbesondere dem Thema Gesundheit als Wert und Luxusgut.Es werden die Unterschiede einer auf Krankheit gerichteten Medizin gegenüber Angeboten zur Verbesserung von Gesundheit vor dem Hintergrund des Fortschritts im Bereich der Personalisierten Medizin gegenübergestellt. Diese Innovationen lassen den Traum von ewiger Jugend und Unsterblichkeit in einem neuen Licht erscheinen. Mit diesem Paradigmenwechsel und den Forschungsergebnissen über Hundertjährige wird die Frage nach den Inhalten und der Sinnhaftigkeit von Gesundheitsangeboten gestellt.Der Autor entwirft Szenarien, wie Gesundheitsangebote gerade auch im Bereich des Torurismus dem Wunsch des Einzelnen nach Lebenssinn, Wertschätzung, Verbundenheit und Simplizität Rechnung tragen können. Er zeigt auf, welche Vorteile in der Erfahrbarkeit von Gesundheit durch neue Angebote des Reisens entstehen.Gesundheit wird als magischer Moment emotional erfahrbar. Gesundheit erfährt hiermit eine neue Positionierung als Luxusgut.
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| 4. |
- Plöchinger, Magdalena, et al.
(författare)
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Functional Update of the Auxiliary Proteins PsbW, PsbY, HCF136, PsbN, TerC and ALB3 in Maintenance and Assembly of PSII
- 2016
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Ingår i: Frontiers in Plant Science. - : Frontiers Media SA. - 1664-462X. ; 7
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Tidskriftsartikel (refereegranskat)abstract
- Assembly of Photosystem (PS) II in plants has turned out to be a highly complex process which, at least in part, occurs in a sequential order and requires many more auxiliary proteins than subunits present in the complex. Owing to the high evolutionary conservation of the subunit composition and the three-dimensional structure of the PSII complex, most plant factors involved in the biogenesis of PSII originated from cyanobacteria and only rarely evolved de novo. Furthermore, in chloroplasts the initial assembly steps occur in the non-appressed stroma lamellae, whereas the final assembly including the attachment of the major LHCII antenna proteins takes place in the grana regions. The stroma lamellae are also the place where part of PSII repair occurs, which very likely also involves assembly factors. In cyanobacteria initial PSII assembly also occurs in the thylakoid membrane, in so-called thylakoid centers, which are in contact with the plasma membrane. Here, we provide an update on the structures, localisations, topologies, functions, expression and interactions of the low molecular mass PSII subunits PsbY, PsbW and the auxiliary factors HCF136, PsbN, TerC and ALB3, assisting in PSII complex assembly and protein insertion into the thylakoid membrane.
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