Alternative Methods of Photosynthetic Carbon Assimilation in Marine Macroalgae
نویسندگان
چکیده
منابع مشابه
Aspects of carbon monoxide production and oxidation by marine macroalgae
Rates of macroalgal carbon monoxide (CO) production were compared among 5 taxa representing 3 major phylogenetic groups (Phaeophyta, Chlorophyta, Rhodophyta). CO production varied substantially from a minimum of about 20 ng CO gdw–1 h–1 for Fucus vesiculosus to >4000 ng CO gdw–1 h–1 for Laminaria saccharina. None of the macroalgae examined contained significantly elevated CO concentrations with...
متن کاملPhotosynthetic assimilation of carbon dioxide and acetate by isolated chloroplasts.
Chloroplasts isolated by methods similar to that described by Arnon et al. (1) are capable of incorporating acetate carbon into both lipid and n)on-lipid materials when fortified with appropriate cofactors (2, 3,4, 5). The actual rate of incorporation of acetate carbon in these preparations was, however, very small compared with the normal rate of photosynthesis (1-2 jumoles/mg chlorophyll'hr) ...
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Cyanobacteria dominate the world's oceans where iron is often barely detectable. One manifestation of low iron adaptation in the oligotrophic marine environment is a decrease in levels of iron-rich photosynthetic components, including the reaction center of photosystem I and the cytochrome b6f complex [R.F. Strzepek and P.J. Harrison, Photosynthetic architecture differs in coastal and oceanic d...
متن کاملC3 and C4 pathways of photosynthetic carbon assimilation in marine diatoms are under genetic, not environmental, control.
Marine diatoms are responsible for up to 20% of global CO(2) fixation. Their photosynthetic efficiency is enhanced by concentrating CO(2) around Rubisco, diminishing photorespiration, but the mechanism is yet to be resolved. Diatoms have been regarded as C(3) photosynthesizers, but recent metabolic labeling and genome sequencing data suggest that they perform C(4) photosynthesis. We studied the...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1988
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.87.3.686