Aquatic Photosynthesis - download pdf or read online

By Paul G. Falkowski

ISBN-10: 0691115508

ISBN-13: 9780691115504

Aquatic Photosynthesis is a entire consultant to realizing the evolution and ecology of photosynthesis in aquatic environments. This moment version, completely revised to convey it brand new, describes how essentially the most basic metabolic procedures advanced and remodeled the outside chemistry of the Earth. The ebook makes a speciality of fresh biochemical and biophysical advances and the molecular organic options that experience made them possible.

In ten chapters which are self-contained yet that construct upon info awarded past, the publication begins with a reductionist, biophysical description of the photosynthetic reactions. It then strikes via biochemical and molecular organic styles in aquatic photoautotrophs, physiological and ecological ideas, and international biogeochemical cycles. The e-book considers purposes to ecology, and refers to old advancements. it may be used as a main textual content in a lecture direction, or as a supplemental textual content in a survey path comparable to organic oceanography, limnology, or biogeochemistry.

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Extra resources for Aquatic Photosynthesis

Sample text

With respect to photosynthesis, life-forms are critical to determining the rate of supply of substrates, especially CO2 and other dissolved nutrients, and light. For example, small cells, with high surface-area-to-volume ratios, have an advantage over large cells with respect to the diffusion and acquisition of essential elements and molecules between the bulk fluid and the cell (Chisholm 1992; Raven 1986). Thus, simply by virtue of size, small cells have a competitive advantage over large cells in environments where the diffusion of nutrients may be limiting growth.

The molecular biological evidence clearly suggests that chloroplasts arose from the engulfment of an oxygenic cyanobacteria by a host cell that almost certainly con- The rate of sedimentation is related to a sedimentation coefficient, s, by s = dx/dt (ω 2x)−1, where x is distance of the molecule or particle from the center of rotation after time t (in seconds) in the rotating field, and ω is the angular velocity in radians per second. A sedimentation coefficient of 1 × 10−13 s is equal to 1 S. Thus, a 16S rRNA molecule would sediment with a coefficient of 16 × 10−13 s.

Obligate photoautotrophy is, by far, the major pathway for the biochemical reduction of inorganic carbon in aquatic environments and is the overarching subject of this book. Earlier we had briefly mentioned that a second organelle, the mitochondrion, was also incorporated via the phagotrophic ingestion of a symbiotic prokaryote. This organelle oxidizes organic carbon at the expense of molecular oxygen to provide not only energy but also substrates for cell growth. This aspect of cell metabolism is examined in chapter 8.

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Aquatic Photosynthesis by Paul G. Falkowski


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