Titlebook: Marine Pelagic Cyanobacteria: Trichodesmium and other Diazotrophs; E. J. Carpenter,D. G. Capone,J. G. Rueter Book 1992 Springer Science+Bu

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,: Ultrastructure and Protein Localization,ion electron microscopy. The ultrastructure of . is quite different from that of other cyanobacteria. . can be differentiated from . on the basis of colonial morphology and the subcellular arrangement of inclusions. The main differentiating features are highlighted. A variety of associated organisms

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Oxygen Cycling in Cyanobacteria, with Specific Reference to Oxygen Protection in , spp., including photorespiration, “dark” respiration (cytochrome aa. activity), and Mehler reaction, in lowering net oxygen evolution during photosynthesis. Considering our basic understanding of these reactions in cyanobacteria, Mehler reaction activity was hypothesized to play a significant role becaus

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Oxygen Dynamics in , spp. Aggregates,of the relative rates of photosynthetic O. production and a number of O. consuming mechanisms. These O. consuming mechanisms may be grouped into those operating at: 1) the physiological level of the . trichomes themselves (physiological mechanisms), 2) the level of the hydrodynamical and diffusive e

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Spatio-Temporal Dynamics of the Cyanobacterial Blooms in the Gulf of Finland, Baltic Sea,ts and phytoplankton, from August 1990 were used to investigate the spatio-temporal patterns of summer cyanobacterial blooms along the axis of the Gulf of Finland, the Baltic Sea. These measurements were supplemented with information about phytoplankton species composition and the vertical distribut

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N2 Fixation in non-heterocystous Cyanobacteria: An Overview, have probed the mechanisms whereby these organisms maintain an active nitrogenase in the presence of both atmospheric and photosynthetic O., the intracellular location of nitrogenase and the supply of ATP, reductant and carbon skeletons to support N. fixation. In contrast, field studies on natural

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The Gas Vesicles and Buoyancy of ,, to remote sensors. Under rough conditions they are mixed down, sometimes to great depths, but they may float back rapidly by virtue of their low density and large size. . gas vesicles are narrower, and therefore less efficient in providing buoyancy, than those of other cyanobacteria, but this gives

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Marine Nitrogen-Fixing Diatom-Cyanobacteria Symbioses,nobacteria are frequently noted in tropical and subtropical waters, and direct evidence indicates that at least two associations are diazotrophic. Abundance data is limited, but . blooms are recorded from the central Pacific gyre at up to 10. cells L.. . growth rates of these associations are not kn