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  1. No Access

    Article

    Multiple roles of siderophores in free-living nitrogen-fixing bacteria

    Free-living nitrogen-fixing bacteria in soils need to tightly regulate their uptake of metals in order to acquire essential metals (such as the nitrogenase metal cofactors Fe, Mo and V) while excluding toxic o...

    A. M. L. Kraepiel, J. P. Bellenger, T. Wichard, F. M. M. Morel in BioMetals (2009)

  2. No Access

    Article

    Bioaccumulation of mercury and methylmercury

    The factors controlling the accumulation of mercury in fish are poorly understood. The oft invoked lipid solubility of MMHg is an inadequate explanation because inorganic Hg complexes, which are not bioaccumul...

    R. P. Mason, J. R. Reinfelder, F. M. M. Morel in Water, Air, and Soil Pollution (1995)

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    Article

    The role of microorganisms in elemental mercury formation in natural waters

    Gas evasion of elemental Hg (Hg°) from the open ocean plays a prominent role in the global mercury cycle. Elemental Hg is formed primarily by reduction of ionic Hg in the mixed layer of aquatic systems. By cul...

    R. P. Mason, F. M. M. Morel, H. F. Hemond in Water, Air, and Soil Pollution (1995)

  4. No Access

    Chapter

    The Role of Microorganisms in Elemental Mercury Formation in Natural Waters

    Gas evasion of elemental Hg (Hg°) from the open ocean plays a prominent role in the global mercury cycle. Elemental Hg is formed primarily by reduction of ionic Hg in the mixed layer of aquatic systems. By cul...

    R. P. Mason, F. M. M. Morel, H. F. Hemond in Mercury as a Global Pollutant (1995)

  5. No Access

    Chapter

    Bioaccumulation of Mercury and Methylmercury

    The factors controlling the accumulation of mercury in fish are poorly understood. The oil invoked lipid solubility of MMHg is an inadequate explanation because inorganic Hg complexes, which are not bioaccumul...

    R. P. Mason, J. R. Reinfelder, F. M. M. Morel in Mercury as a Global Pollutant (1995)

  6. No Access

    Article

    Zinc and carbon co-limitation of marine phytoplankton

    PROCESSES that control carbon uptake by marine phytoplankton are important in the global carbon cycle11–3. Uptake of CO2 itself may be limited by diffusion4. Bicarbonate uptake may be limited by zinc as HCO−3 tra...

    F. M. M. Morel, J. R. Reinfelder, S. B. Roberts, C. P. Chamberlain, J. G. Lee… in Nature (1994)

  7. No Access

    Article

    Cadmium and cobalt substitution for zinc in a marine diatom

    IN the oceans, many trace metals show a surface depletion relative to deep waters that is typical of the principal algal nutrients, N, ¡ and Si, and is therefore presumed to result from biological uptake at th...

    N. M. Price, F. M. M. Morel in Nature (1990)

  8. No Access

    Chapter

    Trace Metals and Plankton in the Oceans: Facts and Speculations

    Understanding the mechanisms of biological and chemical interactions among trace metals and planktonic organisms is the key to elucidating the role of trace metals in the ecology of the oceans and the role of ...

    F. M. M. Morel, N. M. L. Morel-Laurens in Trace Metals in Sea Water (1983)

  9. No Access

    Chapter

    The Phasing and Distribution of Cell Division Cycles in Marine Diatoms

    The cell division cycle of most phytoplankton cells is phased by the environmental light/dark cycle in some fashion. Evidence from culture work (e.g. 1–7) and from field studies (e.g. 8–13) consistently shows ...

    S. W. Chisholm, F. M. M. Morel, W. S. Slocum in Primary Productivity in the Sea (1980)

  10. No Access

    Article

    Growth limitation of a coastal diatom by low zinc ion activity

    THE total zinc concentration in unpolluted marine waters has been reported to be in the 10−10 M range1. Such low concentration of an essential micronutrient suggests that the growth of some phytoplankton may be z...

    M. A. ANDERSON, F. M. M. MOREL, R. R. L. GUILLARD in Nature (1978)