E-Dissertationen: Search
Now showing items 1-10 of 23
Phylogeny and evolution of the epiphytic Rhipsalideae (Cactaceae)
(2012-01-11)
Cactaceae are one of the major floristic components of the New World’s arid as well as seasonally moist tropical regions and at the same time one of the most popular plant families in horticulture. The taxonomic units ...
Quantitative Bestimmung der Permeabilität und Analyse der chemischen Zusammensetzung ausgewählter Kutikula-Mutanten von Arabidopsis thaliana
(2010-12-22)
Die Kutikula bildet die Grenzfläche zwischen den oberirdischen Pflanzenorganen und der Umwelt. Für viele Spezies (z.B. P. laurocerasus) wurden bereits transportphysiologische Untersuchungen mit isolierten Kutikularmembranen ...
Comparative and functional promoter analysis of desiccation-related genes from three closely related plant species differing in desiccation tolerance
(2010-03-23)
The closely related resurrection plants C. plantagineum and L. brevidens have the rare ability to withstand desiccation of their vegetative tissues. The species L. subracemosa is a close relative of C. plantagineum and L. ...
Superhydrophobe Oberflächen: Funktionserhaltung durch Regeneration
(2010-03-03)
Viele pflanzliche Oberflächen weisen eine räumliche Mikrostrukturierung auf. Diese Mikrostrukturen sind häufig zusätzlich mit hydrophoben Wachsstrukturen bedeckt. Aufgrund dieser hierarchischen Strukturierung und der Chemie ...
Die Phyllosphäre als Lebensraum für Bakterien: Mechanismen der Interaktion epiphyller Bakterien mit der pflanzlichen Kutikula
(2020-12-16)
Die Phyllosphäre stellt einen lebensfeindlichen Lebensraum dar. Jedoch gibt es epiphytisch lebende Bakterien, die diesen Lebensumständen entgegenwirken und Mechanismen entwickelt haben, in diesem kargen Lebensraum Nährstoffe ......
Characterization of drought stress regulator CBF/DREB genes in Hordeum vulgare: Expression analysis in ten different barley cultivars
(2013-07-08)
Improving crop yield under water deficit environments is an urgent task for crop breeding worldwide. Many efforts have been made to identify key regulators of plant drought stress responses. Most of these studies have been ......
The Cytoskeleton of Diatoms: Structural and Genomic Analysis
(2015-01-08)
The cytoskeleton is essential for many cellular functions such as cell motility, the control of cell shape and polarity, meiosis, cytokinesis, intracellular transport as well as endo- and exocytosis. The present study ...
Identification and molecular characterisation of unknown genes involved in desiccation tolerance mechanisms in the resurrection plant Craterostigma plantagineum
(2014-11-06)
The mechanisms that enable vegetative desiccation tolerance in the resurrection plant Craterostigma plantagineum are not fully understood. Recently, transcriptome data from this plant were obtained thus providing ...
Functional Integration of Floral Plant Traits: Shape and Symmetry, Optical Signal, Reward and Reproduction in the Angiosperm Flower
(2020-05-12)
Pollination syndromes represent groups of floral phenotypes that have originated and diversified in interaction with biotic and abiotic pollen vectors. Plant trait pattern that constitute respective syndromes have been ...
Unexpected chromosomal DNA transfer from Agrobacterium tumefaciens to plant cells: mechanisms and solutions
(2015-01-09)
The soil bacterium and plant pathogen Agrobacterium tumefaciens has the ability to transfer a defined part of its genome, the so called transferred DNA (T-DNA), to plant cells. This transfer has been successfully ...