Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Arabidopsis mutants"”.
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I. Identification of thecis-regulatory elements of the Arabidopsis thaliana TCH3 gene. II. Developmental and molecular responses to touch stimulation in Arabidopsis mutants defective in ethylene responses
… and changes in temperature or light. In Arabidopsis thaliana, morphological changes occur following touch stimulation, and this phenomenon is preceded by upregulation of expression of the TCH genes. The TCH3 transcription unit is 1522 base pairs (bp) and contains three 367-bp repeats …
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Investigation of defence mechanisms against Botrytis cinerea in Arabidopsis thaliana
… attack is currently being dissected using Arabidopsis thaliana as a model organism. Arabidopsis mutants displaying altered disease resistance response to pathogen infections can help us to get a beUer understanding of the genetiC and molecular basis of the disease resistance pathway. …
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Dissection of General and Specific Disease Resistance Pathways in Arabidopsis Thaliana
… dissect plant disease resistance using Arabidopsis thaliana and the bacterial pathogen Pseudomonas syringae. Genetic and molecular approaches were used to identify components involved in this pathway. A screen was conducted to look for Arabidopsis mutants that failed to display the …
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Towards understanding of plasmodesmal association and regulation using Plasmodesmata-Located Protein 5 as a model
… are targeted to PD and regulate PD function. Arabidopsis Plasmodesmata-Located Protein 5 (PDLP5), a receptor-like type I transmembrane protein associated with PD and restricts PD permeability. PDLP5 expression is controlled by a salicylic acid (SA)-dependent signaling pathway, and functional …
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Plant genotype, immunity and soil composition control the rhizosphere microbiome
… for statistical analysis of the influence of Arabidopsis and Medicago mutants on the rhizosphere microbiome. Three groups of Arabidopsis mutants were tested: plants unable to produce aliphatic glucosinolates, plants impaired in the PAMP-triggered immune response and plants unable and …
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New signalling network in plant abiotic stress discovered through a genetic approach
A new collection of Arabidopsis mutants deregulated in the response to abiotic stresses has been isolated using an EMS-mutagenised population carrying the luciferase cDNA under the control of the RCI2A promoter. RCI2A gene is expressed after exposure to low temperatures, dehydration, high salinity, …
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The role of SENSITIVE TO FREEZING6 in plant tolerance to stress
… with greater stress tolerance. Identification of Arabidopsis mutants unable to tolerate stress is a powerful approach to investigate the molecular basis of stress tolerance in plants and so identify targets for modification. The Arabido psis mutant sfr6 (sensitive to freezing6) is unable to …
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Glucuronoxylan Acetylation Patterns and Site-specific Acetyltransferases
… In the work described in this thesis, mutants with altered XSC composition and no GlcA on xylan were studied. They showed no detectable changes in xylan acetylation patterns. Therefore, the effect on GlcA patterning can be attributed to the shortening of the xylan backbone. Mainly, …
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From cradle to grave: The influence of mRNA metabolism on plant stress responses
… elevated drought tolerance has been observed in Arabidopsis mutants with inhibited activity of the major RNA decay factor XRN. Here, through analysis of RNA sequencing and RNA polymerase II chromatin immunoprecipitation (ChIP), evidence of transcriptional read-through was identified as a …
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From cradle to grave: The influence of mRNA metabolism on plant stress responses
… elevated drought tolerance has been observed in Arabidopsis mutants with inhibited activity of the major RNA decay factor XRN. Here, through analysis of RNA sequencing and RNA polymerase II chromatin immunoprecipitation (ChIP), evidence of transcriptional read-through was identified as a …
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GABA regulation of gas exchange in barley (Hordeum vulgare)
… in the leaf samples from GABA deficient Arabidopsis mutants, many stress defence signals related GO terms were commonly down-regulated across mutants due to the absence of GABA. The results indicated that GABA could interact with other signals transcriptionally, and suggests that it may …
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Reproductive and somatic functions of RAD51A and BRCA2 genes in maize
… This is a promising avenue of investigation—in Arabidopsis, RAD51 appears to function as a transcription factor during defense. Mutants were used to investigate the function of RAD51A1, RAD51A2, and BRCA2 in maize reproduction. Previous evidence of sterility in these mutants relied on the …
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New molecular mechanisms of Arabidopsis thaliana resistance to necrotrophic pathogens = New molecular mechanisms of Arabidopsis thaliana resistance to necrotrophic pathogens
… uncharacterized molecular components of Arabidopsis thaliana. Thus, we have demonstrated that A. thaliana secondary cell wall is not just a structural defensive barrier, but is also an important component of specific signalling in defence responses. The broad spectrum resistance of irx1 …
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The molecular basis for the initiation of fruit development and parthenocarpy
… This thesis describes genetic research using Arabidopsis as a model plant to identify integral mechanisms that control parthenocarpy and the initiation of fruit development. The growth and structure of the Arabidopsis pistil was determined post-fertilization. Experiments were designed to …
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Female sterility and carpel development in plants
… The relatively low frequency of female sterile mutants in nature is indicative of the evolutionary constraints on the female organs by dint of their role in bearing the ovules and providing nutrition and protection to the next generation. It is also caused by the lesser probability of female …