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Hypothesis on the Synchronistic Evolution of Autotrophy and Heterotrophy
Trends in Biochemical Sciences, 2018All life on earth requires a source of energy and organic carbon. There has been a continuous debate on whether autotrophic or heterotrophic metabolism came first. A very similar discussion exists concerning the advent of oxygenic photosynthesis and aerobic respiration.
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1993
The overall aim of this thesis was to determine the relative importance of heterotrophy and autotrophy in lake plankton. Empirical analyses using extensive surveys of literature data revealed three specific patterns in metabolism and biomass structure in freshwater plankton.
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The overall aim of this thesis was to determine the relative importance of heterotrophy and autotrophy in lake plankton. Empirical analyses using extensive surveys of literature data revealed three specific patterns in metabolism and biomass structure in freshwater plankton.
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Screening Arthrospira (Spirulina) strains for heterotrophy
Journal of Applied Phycology, 2005Thirty-five clonal, axenic Arthrospira strains were screened for their ability to grow heterotrophically on six carbon sources (20 mM). Glucose (34 strains) and fructose (24 strains) were the only substrates permitting growth in the dark. In some assays, however, not every replicate grew and, in at least one strain (D867), repeat assays over 2 years on
Martin Mühling +2 more
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Heterotrophy and nitrate metabolism in a cyanobacteriumPhormidium uncinatum
Current Microbiology, 1990Nitrate-supported heterotrophic growth ofPhormidium uncinatum was achieved after repeated exposure to glucose in the presence of a photosystem (PS) II inhibitor. Nitrate and glucose utilization as well as activities of their metabolizing enzymes were measured comparatively in photoautotrophic and heterotrophic cells.
Suvendra Nath Bagchi +2 more
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Heterotrophy by Plankton in Three Lakes of Different Productivity
Nature, 1972THE utilization of dissolved organic compounds by heterotrophic microorganisms is an important process in the aquatic carbon cycle and in the functioning of aquatic ecosystems in general1. It has been hypothesized that the only significant uptake of naturally occurring dissolved organic compounds by plankton is carried out by heterotrophic bacteria and
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Microbially Mediated Mineral Carbonation: Roles of Phototrophy and Heterotrophy
Environmental Science & Technology, 2011Ultramafic mine tailings from the Diavik Diamond Mine, Canada and the Mount Keith Nickel Mine, Western Australia are valuable feedstocks for sequestering CO₂ via mineral carbonation. In microcosm experiments, tailings were leached using various dilute acids to produce subsaline solutions at circumneutral pH that were inoculated with a phototrophic ...
Power, Ian M. +5 more
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Evidence for facultative heterotrophy in cultured zooxanthellae
Marine Biology, 1987The locus of symbiotic dinoflagellates within host cells provides a habitat which could potentially be exploited by the alga through heterotrophic uptake of host-derived organic substrates. Using zooxanthellae (Symbiodinium sp.) isolated from the tropical sea anemone Aiptasia pulchella collected from Kaneohe Bay, Hawaii, the effect of various potential
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Heterotrophy mitigates the response of the temperate coral
2016Anthropogenic increases in atmospheric carbon dioxide concentration have caused global average sea surface temperature (SST) to increase by approximately 0.11°C per decade between 1971 and 2010 - a trend that is projected to continue through the 21st century.
Baumann, Justin H. +5 more
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