The Faculty of Mathematics and Natural Sciences: Browsing Mathematisch-Naturwissenschaftliche Fakultät by Classification (DDC) "ddc:580"
Now showing items 41-60 of 128
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Evaluating the phylogenetic structure and microstructural evolution of organellar markers from both compartments in the reconstruction of a carboniferous radiation (mosses)
Krug, Michael (2017-09-12)In the reconstruction of the plant tree of life, sequence data from the plastid genome is currently favored as it contains a mixture of coding and noncoding regions, spanning different patterns of substitution rates and ... -
Evolution and Diversification of the Hookeriales (Bryopsida) with emphasis on Distichophyllum (Daltoniaceae) and its allied genera
Ho, Boon Chuan (2010-04-01)Unbiased by human intuition in interpreting morphological criteria and by convergence of morphological traits, recent methods in molecular phylogeny is offering an independent option to guide our postulations on phylogeny. ... -
Evolution of floral organisation and architecture in Boraginales and Geraniales
Jeiter, Julius (2020-08-13)In this thesis, development, morphology and anatomy of structures from selected taxa from the Gera- niales and Boraginales are studied. Furthermore, the integration of structures such as stamen-corolla tube modifications ... -
Exploring non-coding mitochondrial DNA sequences in bryophyte molecular evolution
Volkmar, Ute (2010-04-28)The thesis presented here focussed on the molecular evolution of non-coding mitochondrial DNA in liverworts and mosses.<br /> To address remaining questions in moss phylogeny, three mitochondrial gene regions were investigated ... -
Extracellular ATP Signaling is Linked to Endocytic Vesicle Recycling in Root Apex
Kagenishi, Tomoko (2016-06-09)Plants are sessile organisms, the roots of which exudate a large number of chemical compounds into the rhizosphere that contain several chemicals and microbes. It is known that at the root apex, the transition zone is ... -
Forest fragmentation and plant-pollinator interactions in Western Kenya
Bergsdorf, Thomas (2006)Rain forest fragmentation can affect plant-pollinator interactions and the reproductive success of plant species. Understanding these consequences is a crucial component of conserving vulnerable ecosystems. <br /> In this ... -
A forward genetic approach to isolate Arabidopsis mutants altered in the regulation of the ALDH7B4 gene
Shafiq, Muhammad Rizwan (2016-09-30)The ALDH7B4 gene is a member of the ALDH super gene family which is known to be involved in stress tolerance, but the regulation of ALDHs was unknown. In the current studies, a forward genetic approach was used to propose ... -
From glycosidase activity profiling to inhibitor discovery in the plant pathogen Pseudomonas syringae
Chandrasekar, Balakumaran (2018-05-25)Retaining glycosidases are important in plants for various biological processes. Plant genomes encode for more than 200 retaining glycosidases but the physiological roles and activities of many remain poorly understood. ... -
Functional Characterization of Transgenic Arabidopsis thaliana Plants Co-over expressing Aldehyde dehydrogenases and Genes for Soluble Osmolytes
Raza, Hasnain (2010-09-16)Plant growth and productivity is largely hampered by a number of abiotic stresses. These stresses affect the physiological and metabolic pathways leading to the production of many harmful substances like aldehydes, reactive ... -
Functional Integration of Floral Plant Traits: Shape and Symmetry, Optical Signal, Reward and Reproduction in the Angiosperm Flower
Mues, Andreas Wilhelm (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 ... -
Funktionelle Charakterisierung von frühen Graviperzeptionsmechanismen in Pflanzen
Hauslage, Jens (2008)Die Ergebnisse der Arbeit zur Untersuchung der funktionellen Charakterisierung von frühen Graviperzeptionsmechanismen in Pflanzen leistet einen wesentlichen Beitrag zur Aufklärung der sehr frühen Prozesse der Schwerkraft ... -
Genetic distances and phylogeography of selected disjunct moss populations in Europe
Sabovljević, Marko (2006)Disjunct ranges are a common phenomenon in bryophytes. To test, whether these disjunctions are the result of the former continuous ranges (and therefore relicts) or the result of long-distance dispersal (and therefore ... -
The Genomic Loci Cer-za and Cer-ye Contribute to Cuticular Wax Biosynthesis in Hordeum vulgare
Müller, Yannic (2022-06-28)Changing environmental conditions demand the expansion of the genetic resources to enable the rapid adaption and development of novel crop species. The cuticle as direct interface between plants and their environment is ... -
Gewebsspezifische Expression von Mitogen-aktivierten Proteinkinasen und Signalübertragung an das Mikrotubuli- Zytoskelett in Arabidopsis thaliana
Beck, Martina (2010-01-04)In dieser Arbeit sind drei MAPK aus A. thaliana näher charakterisiert wurden. Wie bereits bekannt ist, sind MPK3, MPK4 und MPK6 an vielen abiotischen und biotischen, sowie entwicklungsspezifischen Signalwegen beteiligt. ... -
Global change effects on ecosystem species composition, functions and services of West Africa’s Sudanian savannas
Guuroh, Reginald Tang (2016-12-09)Savanna ecosystems cover an eighth of the world's land surface and are of immense ecological and economic importance. Ecologically, they help regulate climate, air quality, water quality, and soil erosion. Economically, ... -
Gravitrope Genexpression in Helianthus annuus
Theisen, Ralf (2005)An der Weiterleitung des gravitropen Stimulus vom Rezeptor bis zum Wirkungsort innerhalb einer höheren Pflanze (Helianthus annuus L., Sonnenblume) sind zahlreiche Signaltransduktions-Schritte beteiligt, die nur zum Teil ... -
Gravity-sensing processes and gravity-dependent gene expression in plants: studied under altered gravity conditions
Vagt, Nicole (2010-11-05)The present study focused on the cellular and molecular gravisensing-related processes in Arabidopsis and in the unicellular rhizoids of the green alga Chara. Experiments during sounding-rocket and parabolic plane flights ... -
In vitro Versuche zu den Wirkungen von Kupferverbindungen, Calciumhydroxid, Kaliumcarbonat und dem Alkylpolyglycosid Glucopon 215 CSUP auf Konidien und frühe Entwicklungsstadien von Venturia inaequalis
Montag, Jurith (2006)In der vorliegenden Arbeit wurden die Wirkungen verschiedener Kupferverbindungen sowie von Calciumhydroxid, Kaliumcarbonat und dem Alkylpolyglycosid Glucopon 215 CSUP auf Konidien und frühe Entwicklungsstadien des ... -
Identification and molecular characterisation of unknown genes involved in desiccation tolerance mechanisms in the resurrection plant Craterostigma plantagineum
Giarola, Valentino (2014-11-06)The mechanisms that enable vegetative desiccation tolerance in the resurrection plant <i>Craterostigma plantagineum</i> are not fully understood. Recently, transcriptome data from this plant were obtained thus providing ... -
Identification of components and substrates of Snf1-related kinase 1 (SnRK1) complexes in Arabidopsis thaliana
Bai, Bing (2019-04-04)Similarly to yeast Sucrose nonfermenting 1 (Snf1) and animal AMP-activated protein kinases (AMPKs), plant Snf1-related (SnRK1) kinases play a central role in the regulation of cellular energy homeostasis and responses to ...