Please use this identifier to cite or link to this item: http://dx.doi.org/10.25673/116661
Title: Design, synthesis and evaluation of drought stress tolerance-inducing compounds
Author(s): Berger, RobertLook up in the Integrated Authority File of the German National Library
Referee(s): Wessjohann, LudgerLook up in the Integrated Authority File of the German National Library
Wojaczyńska, ElżbietaLook up in the Integrated Authority File of the German National Library
Granting Institution: Martin-Luther-Universität Halle-Wittenberg
Issue Date: 2023
Extent: 1 Online-Ressource (157, A.XLIII Seiten)
Type: HochschulschriftLook up in the Integrated Authority File of the German National Library
Type: PhDThesis
Exam Date: 2023-10-12
Language: English
URN: urn:nbn:de:gbv:3:4-1981185920-1186174
Abstract: Diverse small molecules were investigated towards potential drought stress tolerance-inducing effects by means of a Lemna minor-based phenotypical screening with non-invasive optical growth assesssment and automated data evaluation. Promising enhancement of drought stress tolerance was found to be present mainly in the class of 2-substituted quinazolin-4(3H)-ones. Targeting exploration of this compound class, previously undescribed quinazolinones were synthesized exhibiting 3-point structural diversity with varying substitution patterns. The obtained products exhibited small to large positive effects onto the in vivo drought stress tolerance of L. minor surpassing the initially found effects. Concentration-dependent activity profiling further allowed for the development of an empirical structure-activity relationship for the quinazolinone class, directing potential structural improvements for further activity optimization.
Niedermolekulare Substanzen wurden in einem Lemna minor-basierten Assay hinsichtlich ihrer potentiellen Trockenstresstoleranz-induzierenden Eigenschaften untersucht. Eine vielversprechende Erhöhung der Trockenstresstoleranz wurde insbesondere in der Substanzklasse der 2-substituierten Chinazolin-4(3H)-one nachgewiesen. Zur eingehenden Untersuchung dieser Substanzklasse wurden neue, bisher nicht beschriebene Derivate mit variierenden Substitutionsmustern synthetisiert. Die erhaltenen Derivate zeigten kleine bis große positive Effekte auf die in vivo Trockenstresstoleranz von L. minor. Basierend auf konzentrationsabhängigen Aktivitätsbestimmungen konnte eine empirische Struktur-Aktivitäts-Beziehung für die Klasse der Chinazolinone abgeleitet werden, welche mögliche strukturelle Optimierungen zur weiteren Aktivitätserhöhung skizziert.
URI: https://opendata.uni-halle.de//handle/1981185920/118617
http://dx.doi.org/10.25673/116661
Open Access: Open access publication
License: (CC BY 4.0) Creative Commons Attribution 4.0(CC BY 4.0) Creative Commons Attribution 4.0
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