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3 result(s) for "Misslinger, Katharina"
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In meiner Jause steckt Nachhaltigkeit drin!“ Den Wert der Ernährungsweise im Sinne einer nachhaltigen Entwicklung schätzen lernen
Der vorliegende Artikel beschäftigt sich mit der Bewusstseinsbildung für eine nachhaltige Ernährungsweise im Volksschulalter. Durch zielgerichtete, didaktische Zugänge kann bereits bei den Jüngsten der Grundstein für eine nachhaltige Lebensführung gelegt werden, wie die Evaluation eines fächerübergreifenden Projektes darlegt. Das Forschungsdesign, das Interventionsprojekt und resultierende Ergebnisse, sowie ein Ausblick werden in diesem Beitrag vorgestellt.
\In meiner Jause steckt Nachhaltigkeit drin!\. Den Wert der Ernährungsweise im Sinne einer nachhaltigen Entwicklung schätzen lernen
Der Artikel beschäftigt sich mit der Bewusstseinsbildung für eine nachhaltige Ernährungsweise im Volksschulalter. Durch zielgerichtete, didaktische Zugänge kann bereits bei den Jüngsten der Grundstein für eine nachhaltige Lebensführung gelegt werden, wie die Evaluation eines fächerübergreifenden Projektes darlegt. Das Forschungsdesign, das Interventionsprojekt und resultierende Ergebnisse, sowie ein Ausblick werden in diesem Beitrag vorgestellt. (DIPF/Orig.) This article deals with raising awareness for sustainable nutrition in elementary schools. The evaluation of an interdisciplinary project shows that targeted didactic approaches can provide the foundation for a sustainable lifestyle already among the youngest children. Research design, intervention project and results as well as an outlook are presented in this article. (DIPF/Orig.)
The monothiol glutaredoxin GrxD is essential for sensing iron starvation in Aspergillus fumigatus
Efficient adaptation to iron starvation is an essential virulence determinant of the most common human mold pathogen, Aspergillus fumigatus. Here, we demonstrate that the cytosolic monothiol glutaredoxin GrxD plays an essential role in iron sensing in this fungus. Our studies revealed that (i) GrxD is essential for growth; (ii) expression of the encoding gene, grxD, is repressed by the transcription factor SreA in iron replete conditions and upregulated during iron starvation; (iii) during iron starvation but not iron sufficiency, GrxD displays predominant nuclear localization; (iv) downregulation of grxD expression results in de-repression of genes involved in iron-dependent pathways and repression of genes involved in iron acquisition during iron starvation, but did not significantly affect these genes during iron sufficiency; (v) GrxD displays protein-protein interaction with components of the cytosolic iron-sulfur cluster biosynthetic machinery, indicating a role in this process, and with the transcription factors SreA and HapX, which mediate iron regulation of iron acquisition and iron-dependent pathways; (vi) UV-Vis spectra of recombinant HapX or the complex of HapX and GrxD indicate coordination of iron-sulfur clusters; (vii) the cysteine required for iron-sulfur cluster coordination in GrxD is in vitro dispensable for interaction with HapX; and (viii) there is a GrxD-independent mechanism for sensing iron sufficiency by HapX; (ix) inactivation of SreA suppresses the lethal effect caused by GrxD inactivation. Taken together, this study demonstrates that GrxD is crucial for iron homeostasis in A. fumigatus.