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Fossil plants from the eocene London Clay: The use of pyrite textures to determine the mechanism of pyritization
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Abstract: Pyritized twigs and roots from the Eocene London Clay of SE England were studied to gain a better understanding of the process of pyritization by investigating pyrite textures in relation to cell type and quality of preservation. Highly polished sections and fractured surfaces taken from 124 specimens were examined using optical microscope and SEM, the latter equipped to map pyrite and carbon. Pyrite textures include microcrystalline, framboidal, massive polycrystalline, and subhedr...
Related newspaper, magazine, and journal articles from HighBeam Research
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Fossil plants from the eocene London Clay: The use of pyrite textures to determine the mechanism of pyritization
Journal of the Geological Society
; Abstract: Pyritized twigs and roots from the Eocene London Clay of SE England were studied to gain a better understanding of the process of pyritization by investigating pyrite textures in relation to cell type and quality of preservation. Highly polished sections and fractured surfaces taken from
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A cross-polarization, magic-angel-spinning, 13C-nuclear-magnetic-resonance study of polysaccharides in sugar beet cell walls
Plant Physiology
; A Cross-Polarization, Magic-Angle-Spinning, ^sup 13^C-Nuclear-Magnetic-Resonance Study of Polysaccharides in Sugar Beet Cell Walls1 Catherine M.G.C. Renard2* and Michael C. Jarvis Solid-state nuclear magnetic resonance relaxation experiments were used to study the rigidity and spatial proximity of
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Use of chitinase and chitosanase to form sphaeroplasts from Pilobolus sporangiospores.
Proceedings of the Indiana Academy of Science
; ABSTRACT. Extracting cell contents, such as DNA and protein, from cells with cell walls creates a special challenge because the wall has to be removed without damaging the contents of the cell itself. One method to remove cell walls is to use enzymes to break down cell wall components to release
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How do lignin composition, structure, and cross-linking affect degradability? A review of cell wall model studies.(SYMPOSIUM--LIGNIN AND FORAGE DIGESTIBILITY)
Crop Science
; LIGNIN plays a vital role in plant growth and development by improving water conduction through xylem tracheary elements, enhancing the strength of fibrous tissues, and limiting the spread of pathogens in plant tissues (Iiyama et al., 1994). Lignin restricts the degradation of structural
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Distribution of fucose-containing xyloglucans in cell walls of the murl mutant of Arabidopsis1
Plant Physiology
; The monoclonal antibody, CCRC-M1, which recognizes a fucose (Fuc)-containing epitope found principally in the cell wall polysaccharide xyloglucan, was used to determine the distribution of this epitope throughout the mur1 mutant of Arabidopsis. Immunofluorescent labeling of whole seedlings revealed
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Non-destructive multiple approaches to interpret the preservation of plant fossils: implications for calcium-rich permineralizations
Journal of the Geological Society
; ... cell walls and cell lumina and (2) area maps (100 frames) showing the overall distribution across a group of cells. Area maps were coloured to distinguish clement ... cell pattern is indistinct in elemental maps and the backscattered image (Fig. 2b ...
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Placing Single-Molecule T4 Lysozyme Enzymes on a Bacterial Cell Surface: Toward Probing Single-Molecule Enzymatic Reaction in Living Cells
Biophysical Journal
; ABSTRACT The T4 lysozyme enzymatic hydrolyzation reaction of bacterial cell walls is an important biological process, and single-molecule enzymatic reaction dynamics have been studied under physiological condition using purified Escherichia coli cell walls as substrates. Here, we report progress
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Pathogenesis of the human opportunistic pathogen Pseudomonas aeruginosa PA14 in Arabidopsis
Plant Physiology
; Pathogenesis of the Human Opportunistic Pathogen Pseudomonas aeruginosa PA14 in Arabidopsis' The human opportunistic pathogen Pseudomonas aeruginosa strain PA14 is a multihost pathogen that can infect Arabidopsis. We found that PA14 pathogenesis in Arabidopsis involves the following steps:
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The mechanical properties and molecular dynamics of plant cell wall polysaccharides studied by fourier-transform infrared spectroscopy
Plant Physiology
; The Mechanical Properties and Molecular Dynamics of Plant Cell Wall Polysaccharides Studied by Fourier-Transform Infrared Spectroscopy) Polarized one- and two-dimensional infrared spectra were obtained from the epidermis of onion (Allium cepa) under hydrated and mechanically stressed conditions. By
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Formation of rhamnogalacturonan II-Borate dimer in pectin determines cell wall thickness of pumpkin tissue
Plant Physiology
; Formation of Rhamnogalacturonan II-Borate Dimer in Pectin Determines Cell Wall Thickness of Pumpkin Tissue1 Boron (B) deficiency results in inhibition of pumpkin (Cucurbia moschata Duchesne) growth that is accompanied by swelling of the cell walls. Monomeric rhamnogalacturonan II (mRG-II) accounted
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