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Showing 1 to 20 of 110 for “"Cuticle"”.
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Ant cuticle microsculpture: diversity, classification, evolution, and function
… chapters. The first chapter is a review of ant cuticle and microsculpture diversity as well as including analyses examining the evolution and lability of microsculpture traits. I then review the literature for functional hypotheses related to ant microsculpture. The second chapter explores the …
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Biochemical studies of enzymes in insect cuticle hardening
In insects, the cuticle provides protection against physical injury and water loss, rigidness for muscle attachment and mechanical support, and flexibility in inter-segmental and joint areas for mobility. As most insects undergo metamorphosis, they need to shred off old cuticle and synthesize new …
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The cuticle of the parasitic nematode, Nematospiroides dubius / Lesley Clare Hurley
Bibliography: leaves 155-193
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Feedback Regulation of Wnt Signaling by Naked Cuticle (Nkd) During Drosophila Embryogenesis
… and diabetes. In Drosophila, the naked cuticle (nkd) gene antagonizes the Wnt/beta -catenin signaling in every segment of the embryo. Nkd is a modular, evolutionarily conserved protein that uses an EF-hand motif and adjacent sequences to target the cytoplasmic Wnt signal transducer …
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On the molecular pathways supporting the development of structurally coloured cuticle in Hibiscus trionum
… as iridescence). Further observations of the cuticle showed the presence of nano-scaled striations acting as a grating like surface responsible for the diffraction of light. Computational modelling, and existing knowledge in material physics, suggests that the development of such a structure …
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Micro- and nanoscale features of insect cuticle and their impacts on wetting, friction, and optical properties
The surface of insect cuticle is often modified to form various unique structures such as setae, microtrichia, nanopillars, sculpticells, or gratings. The adaptive roles of these cuticular architectures have become a recent area of interest, notably to serve as inspiration for the creation of novel …
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Molecular biology of the entomopathogenic fungus Beauveria bassiana : insect-cuticle degrading enzymes and development of a new selection marker for fungal transformation
… both the strong evidence supporting the role of cuticle-degrading proteases (PR1 and PR2) as well as phospholipase B (PLB) in fungal pathogens and their correlations to virulence observed in either M. anisopliae or C. albicans, these genes were cloned from B. bassiana 252. Two PLB-encoding genes …
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Characterisation of quiescin-sulfhydryl oxidase and nematode astacin mutants using functional studies in caenorhabditis elegans.
… elegans, the basement membrane and the cuticle. The cuticle of C. elegans, like other nematodes is composed largely of collagen-like proteins, with the trimeric collagenous proteins forming approximately 80% of the cuticle. Cuticle collagens are believed to be highly processed in a …
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Key roles of glutamate metabolism and cuticle permeability in the multifaceted defense response of the abscisic acid deficient sitiens tomato mutant against Botrytis cinerea
… ABA-deficiency in sitiens results in increased cuticle permeability which is also positively correlated with disease resistance. It was then hypothesized that a permeable cuticle can facilitate faster perception of putative elicitors released from the pathogen, or from the mechanical attempt of …
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The role of protein metal complexes in the mechanics of Mytilus californianus byssal threads
… (DOPA)-metal bonds in the protective thread cuticle (Chapter 5). Byssal threads are protein fibers, which mussels use to attach to various substrates at the seashore. These relatively stiff fibers have the ability to extend up to about 100 % strain, dissipating large amounts of mechanical …
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Body Size Regulation via BMP Signaling in <i>Caenorhabditis elegans</i>
… the course of our investigation, we identified cuticle collagen genes as hypodermal transcriptional targets of DBL-1 signaling that act as effectors of body size regulation. We have identified positive (col-41), negative (col-141, co-142), and dose-sensitive regulators (rol-6) of body size. In …
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Morphogenesis of Cuticle: Its Pigmentation and Deposition, the Role of Bursicon, and Changes in Fat Body Cells in the Adult Flesh Flies, Sarcophaga Bullata and Sarcophaga Argyrostoma (Diptera: Sarcophagidae)
Made available in DSpace on 2014-12-09T20:27:24Z (GMT). No. of bitstreams: 1 6812116.pdf: 4492317 bytes, checksum: 40d80eff7dbc33a9811a24d104accb12 (MD5) Previous issue date: 1968
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Characterization of acifluorfen selectivity mechanisms in tomato and related Lycopersicon species
… density, quantity of epicuticular wax and cuticle, and wax composition to acifluorfen tolerance was determined. There was no correlation between trichome density and acifluorfen tolerance or susceptibility, however, an inverse relationship between stomate density and tolerance was observed. …
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IDENTIFICATION OF ULTRASTRUCTURAL AND BIOCHEMICAL MARKERS OF FROST AVOIDANCE IN THE CUTICULAR LAYER OF CORN
… contrast, over the five-week field conditions, cuticle thickness increased in all genotypes. Genotype 256 had a significantly thinner cuticle (-0.25 μm) than the other genotypes indicating genotypic variation is accentuated under field conditions and sensitive lines may have a thinner cuticle. …
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Taphonomy of pigmentary colours in fossil insects
… for the striking colouration displayed in their cuticles. Although fossil insects are abundant and the patternings in their cuticles highly resemble those found in extant insects, these are commonly monotonal, especially in those insects preserved across deep geological time. Colouration …
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Identification of up-regulated genes of the hyphomycete, Beauveria bassiana, during infection of Leptinotarsa decemlineata
… of the fungus in the presence of its host cuticle as inductor of the pathogenic process, (2) gene expression in a natural context of infection, with B. bassiana infecting the larvae of the Colorado potato beetle. In both cases, the method used was the cDNA representational difference …
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Opuntia ficus-indica: a climate-resilient biomass feedstock for low-input drylands agriculture
… robust heat and drought tolerance, a thick cuticle, and crassulacean acid metabolism. The molecular composition that drives these adaptations is not well known. Furthermore, the tools needed to further analyze mechanisms, including genetic transformation and genome editing, have not been …
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Heme Peroxidase Hpx-2 Protects Caenorhabditis Elegans From Pathogens
… </em>mutant animals possessed a slightly weaker cuticle structure, indicated by higher permeability to a DNA dye, but exhibited no obvious morphological defects. In addition, fluorescent labeling of HPX-2 revealed its expression in the pharynx, an organ in which BLI-3 also resides. Interestingly, …
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Cuticular transport of hydrophilic molecules with special focus on primary metabolites and active ingredients
The plant cuticle as an interface between the plant interior and the adjoining atmosphere plays an important role in any interaction between the plant and its environment. Transport processes across the cuticles were the object of countless research since many decades. However, bulk of the work …
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