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Doctoral Thesis
2020
Functional characterization of genes involved in development and function of cluster root in Lupinus albus
Functional characterization of genes involved in development and function of cluster root in Lupinus albus
Abstract (English)
White lupin cluster roots are specialized brush-like root structures that are formed in some species under phosphorus (P)-deficient conditions. They intensely secrete protons and organic anions for solubilization and acquisition of sparingly soluble phosphates. Because of the outstanding P efficiency of white lupin, this species has served as an illuminating model for plant adaptations to phosphorus deficiency. Since decades, numerous studies were carried out to gain a comprehensive knowledge of cluster root formation and function. The aim of this study was to identify genetic components involved in cluster root development and to identify the transporter genes that are potentially involved in citrate andmalate secretion under P deficiency as well as under toxic aluminium (Al) exposure.
Abstract (German)
Die Clusterwurzeln der Weißen Lupine sind spezialisierte, bürstenartige Wurzelstrukturen, die in manchen Pflanzenarten unter Phosphormangel gebildet werden. Sie scheiden intensiv Protonen und organische Anionen aus, um schwer lösliche Phosphate zu lösen und pflanzenverfügbar zu machen. Wegen der außerordentlichen Phosphor (P)-Effizienz dient die Weiße Lupine seit vielen Jahren als aufschlussreicher Modellorganismus der Erforschung der Anpassung von Pflanzen an Phosphormangel. Ziel dieser Studie war es, genetische Komponenten der Clusterwurzelentwicklung und deren Funktion bei Phosphormangel zu identifizieren und damit die zugrunde liegenden Mechanismen besser zu verstehen. Insbesondere standen ein Peptid (LaCEP1), welches eine mögliche Rolle als Signal bei der Clusterwurzelentwicklung haben könnte und Kandidatengene für die Ausschüttung von organischen Molekülen im Zentrum dieser Arbeit.
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Faculty
Faculty of Agricultural Sciences
Institute
Institute of Crop Science
Examination date
2020-03-15
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ISBN
Language
English
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Classification (DDC)
630 Agriculture
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Standardized keywords (GND)
Sustainable Development Goals
BibTeX
@phdthesis{Zhou2020,
url = {https://hohpublica.uni-hohenheim.de/handle/123456789/6489},
author = {Zhou, Yaping},
title = {Functional characterization of genes involved in development and function of cluster root in Lupinus albus},
year = {2020},
school = {Universität Hohenheim},
}