Distributions of particulate Heme b in the Atlantic and Southern Oceans - implications for electron transport in phytoplankton
| Autor: | Maria C. Nielsdóttir, Eric P. Achterberg, Micha J. A. Rijkenberg, David J. Honey, Martha Gledhill |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Atmospheric Science
Hemeprotein 010504 meteorology & atmospheric sciences Photosystem II Context (language use) macromolecular substances Biology Nitrate reductase 01 natural sciences 03 medical and health sciences chemistry.chemical_compound Botany Phytoplankton Environmental Chemistry 14. Life underwater 030304 developmental biology 0105 earth and related environmental sciences General Environmental Science 0303 health sciences Global and Planetary Change Cytochrome b6f complex fungi food and beverages Heme B chemistry 13. Climate action Chlorophyll Environmental chemistry |
| Zdroj: | Global Biogeochemical Cycles, 27 (4). pp. 1072-1082. |
| Popis: | Concentrations of heme b, the iron-containing component of b-type hemoproteins, ranged from? 500). High chl a:heme b ratios resulted from relative decreases in heme b, suggesting proteins such as cytochrome b6f, the core complex of photosystem II, and eukaryotic nitrate reductase were depleted relative to proteins containing chlorophyll such as the eukaryotic light-harvesting antenna. Relative variations in heme b, particulate organic carbon, and chl a can thus be indicative of a physiological response of the phytoplankton community to the prevailing growth conditions, within the context of large-scale changes in phytoplankton community composition. |
| Databáze: | OpenAIRE |
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