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  • 1
    Electronic Resource
    Electronic Resource
    The effects of triphenyltin chloride on respiration and photosynthesis in the green algae Enteromorpha intestinalis and Ulothrix pseudoflacca (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 3 (1980), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Respiration and photosynthesis in zoospores of Enteromorpha intestinalis (L.) Link and Ulothrix pseudoflacca Wille showed greater sensitivity to inhibition by triphenyltin chloride than in vegetative tissue. Photosynthesis in zoospores and vegetative tissue of U. pseudoflacca was more resistant to triphenyltin chloride inhibition than in zoospores and vegetative tissue of E. intestinalis. Respiration in zoospores and vegetative tissue of both species was equally sensitive to triphenyltin chloride.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1365-3040.ep11581872
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  • 2
    Electronic Resource
    Electronic Resource
    Uptake of triphenyltin chloride by Enteromorpha intestinalis and Ulothrix pseudoflacca (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 4 (1981), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract. The uptake of triphenyltin chloride by Enteromorpha intestinalis and Ulothrix pseudoflacca zoospores and vegetative tissue was examined under various conditions affecting the metabolic state of the chloroplast. A synthesis for [113Sn]-triphenyltin chloride is presented. Results indicate that uptake of [113Sn]-triphenyltin chloride by vegetative tissue (and probably zoospores) is a passive process. Differences in the uptake of [113Sn]-triphenyltin chloride by zoospores of the two algae, in the dark and light, and by vegetative tissue of the two algae in the light, cannot be explained readily on the basis of surface area available for adsorption. Uptake studies suggest that differences in response to triphenyltin chloride exist between vegetative tissue and zoospores. Treatments which depress chloroplast membrane energization in vegetative tissue, e.g. lack of light, the presence of the uncoupler carbonyl cyanide m-chlorophenyl hydrazone (CCP) or of DCMU prevent the exchange of triphenyltin chloride in pulse-chase experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3040.1981.tb02116.x
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  • 3
    Electronic Resource
    Electronic Resource
    Non-invasive ventilation in the treatment of ventilatory failure following corrective spinal surgery (2001)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 56 (2001), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Non-invasive positive pressure ventilation has previously been used successfully to treat both acute and chronic ventilatory failure secondary to a number of conditions, including scoliosis. We report two patients in whom it was used, on three separate occasions, to treat acute ventilatory failure following corrective spinal surgery. Non-invasive positive pressure ventilation may be useful postoperatively in high-risk patients undergoing major spinal surgery in an attempt to prevent intubation and its attendant complications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.2001.01422.x
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  • 4
    Electronic Resource
    Electronic Resource
    Castleman’s disease of the erector spinae muscle (1998)
    Springer
    Skeletal radiology 27 (1998), S. 637-640 
    Details
    ISSN: 1432-2161
    Keywords: Key words Castleman’s disease ; Soft tissues ; MRI ; Ultrasound ; Embolisation ; Angiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Castleman’s disease, angio-follicular lymph node hyperplasia, is a relatively rare benign tumour. It typically arises in the mediastinum. We report a unique case arising in the erector spinae muscle. The case demonstrates the importance of radiological investigation and embolisation prior to obtaining a tissue diagnosis and subsequent surgical excision.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050450
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  • 5
    Electronic Resource
    Electronic Resource
    Case report 745 (1992)
    Springer
    Skeletal radiology 21 (1992), S. 393-395 
    Details
    ISSN: 1432-2161
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00241819
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  • 6
    Electronic Resource
    Electronic Resource
    Chloroplast thylakoid membrane fluidity and its sensitivity to temperature (1984)
    Springer
    Planta 161 (1984), S. 375-380 
    Details
    ISSN: 1432-2048
    Keywords: Chloroplast (membrane fluidity ; Fluorescence (polarization, temperature) ; Lipid (thylakoid membrane) ; Membrane (fluidity, temperature) ; Photosynthesis ; Pisum (thylakoid membrane) ; Thylakoid membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In order to investigate membrane fluidity, the hydrophobic probe, 1,6-diphenyl-1,3,5-hexatriene (DPH), has been incorporated into intact isolated thylakoids and separated granal and stromal lamellae obtained from the chloroplasts of Pisum sativum. The steady-state polarization of DPH fluorescence was measured as a function of temperature and indicated that at physiological values the thylakoid membrane is a relatively fluid system with the stromal lamellae being less viscous than the lamellae of the grana. According to the DPH technique, neither region of the membrane, however, showed a sharp phase transition of its bulk lipids from the liquid-crystalline to the gel state for the temperature range -20° to 50° C. Comparison of intact thylakoids isolated from plants grown at cold (4°/7°C) and warm (14°/17° C) temperatures indicate that there is an adaptation mechanism operating which seems to maintain an optimal membrane viscosity necessary for growth. Using a modified Perrin equation the optimal average viscosity for the thylakoid membrane of the chill-resistant variety used in the study (Feltham First) is estimated to be about 1.8 poise.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00398729
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  • 7
    Electronic Resource
    Electronic Resource
    Preparation of protoplasts from the green alga Enteromorpha intestinalis (L.) Link (1979)
    Springer
    Planta 147 (1979), S. 174-177 
    Details
    ISSN: 1432-2048
    Keywords: Enteromorpha ; Green alga ; Protoplasts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Protoplasts have been obtained from vegetative thallus of the green seaweed Enteromorpha following enzymic digestion with driselase and pectinase. The viability of purified protoplast fractions was assessed by staining and measurements of O2 uptake and evolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00389521
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  • 8
    Electronic Resource
    Electronic Resource
    Idiopathic scoliosis: biomechanics and biology (1996)
    Springer
    European spine journal 5 (1996), S. 362-373 
    Details
    ISSN: 1432-0932
    Keywords: Scoliosis ; Three-dimensional deformity ; Lordosis essential lesion ; Opposite to kyphosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract For whatever reason, right-left asymmetry has attracted an illogical proportion of research effort. Non-structural scoliosis, for example secondary to a leg length inequality, is indeed a problem of right-left asymmetry, but structural scoliosis is a complex three-dimensional deformity involving all planes. Biomechanical, biological and clinical evidence indicates clearly that the problem is one of front-back asymmetry and not right-left. The importanc of biological factors lies in their ability to bring the spinal column to and beyond its buckling threshold. Thus a taller and more slender spine is more liable to bend and, being stiffer in the sagittal plane, favours movement into other planes. This epitomises the spine of the scoliosis patient who is growing faster with a spinal template similar to other family members allowing idiopathic scoliosis to express itself genetically. It is the opposite condition to idiopathic hyperkyphosis (Scheuermann's disease), but this deformity is rotationally stable, thus remaining in the sagittal plane. The presence of an adjacent area of lordo-scoliosis below the region of hyperkyphosis testifies to the common nature of the pathogenesis of idiopathic scoliosis and Scheuermann's disease. It is the area of compensatory hyperlordosis below the Scheuermann's area that has obligatorily buckled and represents a human model supporting the lordosis theory, as does surgically tethering the back of the young growing human spine, which crankshafts accelerated progression. Similarly the only successful animal model of the formation of idopathic follows creation of a lordotic spinal segment in an otherwise kyphotic spine. For centuries, engineers have recognised that the mechanical behaviour of a column under load is influenced by geometry, as well as by material properties; it is clear that the spinal column also obeys these well-described laws.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00301963
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  • 9
    Electronic Resource
    Electronic Resource
    Synthetic peptides as probes of plant cell signalling (1996)
    Springer
    Plant growth regulation 18 (1996), S. 143-147 
    Details
    ISSN: 1573-5087
    Keywords: synthetic peptides ; G-proteins ; auxin ; cell-signalling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Synthetic peptides have found increasing use in dissecting cell signalling pathways and have been employed as synthetic antigens, protein kinase and protease substrates. Recently, it has become evident that relatively short (10–30mer) peptides are able to mimic that part of the signalling protein to which their sequence corresponds. In particular, peptides corresponding to the C-terminus of Zea mays auxin binding protein, ZmABP1, were able to modulate ion channel function within Vicia guard cells. In this report, GTPγS binding to NaCl-washed Zea microsomal membranes is shown to be stimulated by peptide A6.2, corresponding to the C-terminal 16 residues of ZmABP1, only when the membranes are reconstituted with soluble Zea protein fractions containing GPα1 and Gα0 homologues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00028499
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  • 10
    Electronic Resource
    Electronic Resource
    Fluidity properties of isolated chloroplast thylakoid lipids (1984)
    Springer
    Photosynthesis research 5 (1984), S. 63-76 
    Details
    ISSN: 1573-5079
    Keywords: Diphenylhexatriene ; fluorescence decay ; anisotropy decay ; thylakoid lipids (pea chloroplasts)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Chloroplast thylakoid lipids have been isolated free of photosynthetic pigments using a combination of high performance liquid and thin layer chromatography. The hydrophobic fluorescent probe, 1,6-diphenyl-1,3,5-hexatriene (DPH) has been incorporated into aqueous dispersions of the isolated lipids in order to investigate dynamic and structural properties of the resulting bilayer membranes. Time dependent fluorescence anisotropy decays have been measured and analysed assuming the wobbling-in-cone model (Kinosita et al., Biophys J 20 (1977) 289–305). The DPH fluorescence lifetimes and the static and dynamic fluorescence anisotropy decay parameters for the probe in a total lipid mixture or in pure digalactosyldiacylglycerol (DGDG), changed in a predictable way with increasing temperature (10°–36°C). For a given temperature, it was found that the total lipid mixture was in general less ordered and showed greater dynamic motion as judged from DPH fluorescence anisotropy and compared with the pure DGDG system, although at 36°C differences in dynamic parameters were less evident. Overall the results obtained emphasize the highly fluid nature of thylakoid membrane lipids and give a basis for investigating how intrinsic proteins modify structural and dynamic properties of the in vivo membrane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00018375
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