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  • 1
    Electronic Resource
    Electronic Resource
    Fluorescent Protein Biosensors: Measurement of Molecular Dynamics in Living Cells (1995)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biophysics and Biomolecular Structure 24 (1995), S. 405-434 
    Details
    ISSN: 1056-8700
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.bb.24.060195.002201
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  • 2
    Electronic Resource
    Electronic Resource
    Multimode Light Microscopy and the Dynamics of Molecules, Cells, and Tissues (1993)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 55 (1993), S. 785-817 
    Details
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ph.55.030193.004033
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  • 3
    Electronic Resource
    Electronic Resource
    The Submicroscopic Properties of Cytoplasm as a Determinant of Cellular Function (1988)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biophysics and Biomolecular Structure 17 (1988), S. 369-396 
    Details
    ISSN: 0084-6589
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.bb.17.060188.002101
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  • 4
    Electronic Resource
    Electronic Resource
    Algal Symbionts of Invertebrates (1973)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 27 (1973), S. 171-188 
    Details
    ISSN: 0066-4227
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.mi.27.100173.001131
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  • 5
    Electronic Resource
    Electronic Resource
    Contact metamorphic P–T–t paths from Sm–Nd garnet ages, phase equilibria modelling and thermobarometry: Garnet Ledge, south-eastern Alaska, USA (2001)
    Oxford, UK : Blackwell Science Inc
    Journal of metamorphic geology 19 (2001), S. 0 
    Details
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Sm–Nd garnet-whole rock geochronology, phase equilibria, and thermobarometry results from Garnet Ledge, south-eastern Alaska, provide the first precisely constrained P–T–t path for garnet zone contact metamorphism. Garnet cores from two crystals and associated whole rocks yield a four point isochron age for initial garnet growth of 89.9 ± 3.6 Ma. Garnet rims and matrix minerals from the same samples yield a five point isochron age for final garnet growth of 89 ± 1 Ma. Six size fractions of zircon from the adjacent pluton yield a concordant U–Pb age of 91.6 ± 0.5 Ma. The garnet core and rim, and zircon ages are compatible with single-stage garnet growth during and/or after pluton emplacement. All garnet core–whole rock and garnet rim-matrix data from the two samples constrain garnet growth duration to ≤5.5 my. A garnet mid-point and the associated matrix from one of the two garnet crystals yield an age of 90.0 ± 1.0 Ma. This mid-point result is logically younger than the 90.7 ± 5.6 Ma core–whole rock age and older than the 88.4 ± 2.5 Ma rim-matrix age for this sample. A MnNaCaKFMASH phase diagram (P–T pseudosection) and the garnet core composition are used to predict that cores of garnet crystals grew at 610 ± 20 °C and 5 ± 1 kbar. This exceeds the temperature of the garnet-in reaction by c. 50 °C and is compatible with overstepping of the garnet growth reaction during contact metamorphism. Intersection of three reactions involving garnet-biotite-sillimanite-plagioclase-quartz calculated by THERMOCALC in average P–T mode, and exchange thermobarometry were used to estimate peak metamorphic conditions of 678 ± 58 °C at 6.1 ± 0.9 kbar and 685 ± 50 °C at 6.3 ± 1 kbar, respectively. Integration of pressure, temperature, and age estimates yields a pressure-temperature-time path compatible with near isobaric garnet growth over an interval of c. 70 °C and c. 2.3 my.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.0263-4929.2001.00337.x
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  • 6
    Electronic Resource
    Electronic Resource
    Nitrogen fixation (acetylene reduction) associated with macroalgae in a coral-reef community in the Bahamas (1977)
    Springer
    Marine biology 40 (1977), S. 29-32 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract N2 fixation (C2H2 reduction) was associated with several species of macroalgae on a coral reef near Grand Bahama Island. The highest rates were associated with Microdictyon sp. (Chlorophyceae) and Dictyota sp. (Phaeophyceae). Extensive mats of filamentous blue-green algae, not heterotrophic bacteria, were the N2 fixing agents: in experiments with samples of Microdictyon sp., the activity was lightdependent and not stimulated by organic compounds under either aerobic or anaerobic conditions. Assays in situ, at 20 m depth, and on shipboard, gave similar rates of N2 fixation; the cyanophytes presumably have pigment adaptations to function in blue light. The maximum rate of N2 fixation, associated with Microdictyon sp., was 3.8 μg N fixed g dry weight-1 h-1. Coral-reef communities flourish in nutrientimpoverished waters, and therefore any input of nitrogen is probably important in stabilizing such ecosystems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00390624
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  • 7
    Electronic Resource
    Electronic Resource
    A new cryptomonad from antarctica: Cryptomonas cryophila sp. nov. (1971)
    Springer
    Archives of microbiology 75 (1971), S. 269-280 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Die Arbeit gibt die taxonomische Diagnose und beschreibt die Ultrastruktur von Cryptomonas cryophila sp. nov. (Cryptomonadacee). Obwohl diese Alge unter dem antarktischen Meereseis gefunden wurde, unterscheider sich ihr Feinbau nur sehr wenig von den bisher beschriebenen verwandten Arten. Der Unterschied besteht hauptsächlich in den gepaarten, gestielten Pyrenoiden, die eine ungewöhnliche nierenartige Gestalt haben.
    Notes: Summary A taxonomic diagnosis of Cryptomonas cryophila sp. nov. (Cryptophyceae) is given, and its ultrastructural morphology is described. Although isolated from beneath Antarctic sea ice, its fine structure differs little from that described for related species. The principal distinguishing features is the possession of paired, stalked pyrenoids, which have an unusual kidney-like morphology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00407688
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  • 8
    Electronic Resource
    Electronic Resource
    Ultrastructure of Cocconeis diminuta pantocsek (1972)
    Springer
    Archives of microbiology 81 (1972), S. 136-145 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The ultrastructural morphology of Cocconeis diminuta, a small benthic diatom, is described. It has been found to possess a typical naviculoid organisation, and does not differ significantly from other species examined with the electron microscope. The pseudoraphe, frequently regarded as an important taxonomic criterion, has been found to be a variable feature in C. diminuta and its significance in this regard appears doubtful. Special reference is made to the substructure of the pyrenoid, since it appears to possess a crystal lattice that is similar in structure to the one described in the dinoflagellate Prorocentrum micans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00412324
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  • 9
    Electronic Resource
    Electronic Resource
    In situ studies of calcification and photosynthetic carbon fixation in the coralMontastrea annularis (1973)
    Springer
    Helgoland marine research 24 (1973), S. 284-291 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary 1. The effect of varying light intensities on the rates of calcification and CO2 fixation in the coralMontastrea annularis is described. 2. High light intensities, above the saturation point of symbiont photosynthesis, are shown to inhibit the rate of calcification in both shallow and deep specimens. 3. Light enhanced calcification in reef-building corals appears to be an energy-requiring process involving the active transport of calcium and carbonate ions, and the translocation of symbiont photosynthate.
    Notes: Kurzfassung Das Ausmaß der Verkalkung und photosynthetischen Kohlenstoffixierung wurde bei Individuen vonMontastrea annularis in verschiedenen Rifftiefen und unter spezifischen Lichtbedingungen mittels der Radioisotope45Ca und14C bestimmt. Die Lichtintensität beeinflußt über die photosynthetische Tätigkeit der symbiotischen Algen vor allem die Geschwindigkeit der Verkalkung und zudem sehr wahrscheinlich die gesamte Wuchsform der Kolonie. Im allgemeinen fördern zunehmende Lichtintensitäten den Prozeß der Verkalkung, wenngleich von einer Sättigungsgrenze an dieser Vorgang eine rückläufige Tendenz aufweist. Eine derartige Beziehung konnte parallel hierzu auch für die Intensität der C-Fixierung und photosynthetischen O2-Produktion festgestellt werden. Diese in situ gewonnenen Ergebnisse wurden durch Laboruntersuchungen bestätigt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01609519
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  • 10
    Electronic Resource
    Electronic Resource
    Symbiotic pathways of carbon in coral reef ecosystems (1973)
    Springer
    Helgoland marine research 24 (1973), S. 276-283 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary 1. Productivity of algal-invertebrate symbiosis in coral reef ecosystems is discussed, and current methods of analysis described. 2. Translocation within the symbiosis, apparent rates of turnover, the retention time of carbon fixed in photosynthesis and the excretory pathways leading to the reef community are examined. Possible mechanisms for recycling carbon back to the level of the primary producers are presented. 3. Future prospects for in situ studies of the “coral reef problem”, and the requirements for substantiative data in these areas are discussed.
    Notes: Kurzfassung Die metabolische Leistungsfähigkeit des Ökosystems Korallenriff basiert zu einem wesentlichen Teil auf der unmittelbaren zellulären Integration von Primärproduzenten und Konsumenten in der symbiotischen Verbindung von Algen und Korallen. Diese Form des Zusammenlebens zweier Organismen stellt ein charakteristisches Merkmal der tropischen Korallenriffe dar und spielt eine Schlüsselrolle bei der Aufrechterhaltung des Ernährungsgleichgewichts innerhalb dieses Ökosystems. Die gegenwärtigen Kenntnisse in bezug auf die Primärproduktion und den Weg des durch die Symbionten fixierten Kohlenstoffs werden besprochen. Methoden für In-situ-Forschungen werden an Hand der bisher erzielten Ergebnisse bewertet, und die Aussichten, die Energietransformation in den Lebensgemeinschaften im Korallenriff zu erfassen, diskutiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01609518
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