Results 161 to 170 of about 5,236 (201)
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Heterotrophy in Tropical Scleractinian Corals
Biological Reviews, 2009AbstractThe dual character of corals, that they are both auto‐ and heterotrophs, was recognized early in the twentieth Century. It is generally accepted that the symbiotic association between corals and their endosymbiotic algae (called zooxanthellae) is fundamental to the development of coral reefs in oligotrophic tropical oceans because zooxanthellae
Fanny, Houlbrèque +1 more
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Anthropogenic nitrogen autotrophy and heterotrophy of the world's watersheds: Past, present, and future trends [PDF]
Global Biogeochemical Cycles, 2010 Anthropogenic nitrogen autotrophy of a territory is defined as the nitrogen flux associated with local production of harvested crops and grass consumed by livestock grazing (in kg N/km(2)/yr).
Josette Garnier +2 more
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Facultative Heterotrophy in Some Chlorococcacean Algae
Science, 1961All known species of the genera Bracteacoccus , Spongiochloris , and Dictyochloris , and some of the species of Neochloris and Spongiococcum are capable of growing heterotrophically in darkness in a glucose-salts medium ...
B C, Parker, H C, Bold, T R, Deason
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AUXOTROPHY AND HETEROTROPHY IN MARINE LITTORAL DIATOMS
Canadian Journal of Microbiology, 1960Forty-four pure cultures of marine littoral diatoms (43 pennate and 1 centric) have been studied to determine (a) whether any accessory organic factors (vitamins) are essential for growth in light, and (b) whether the cells can grow in darkness using glucose, acetate, or lactate as substrates.Six isolates were shown to require thiamine as sole growth ...
J C, LEWIN, R A, LEWIN
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The evolutionary ecology of myco‐heterotrophy
New Phytologist, 2005SummaryNonphotosynthetic mycorrhizal plants have long attracted the curiosity of botanists and mycologists, and they have been a target for unabated controversy and speculation. In fact, these puzzling plants dominated the very beginnings of the field of mycorrhizal biology.
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Journal of Plant Physiology, 1994
Summary Lemna minor L. and Wolffia brasiliensis Weddell can use sucrose to support heterotrophic growth in darkness and photomixotrophic growth in the light, but each is killed by galactose in the medium. Spirodela punctata (G. F. W. Meyer) Thompson growth on sucrose and galactose was indistinguishable. L.
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Summary Lemna minor L. and Wolffia brasiliensis Weddell can use sucrose to support heterotrophic growth in darkness and photomixotrophic growth in the light, but each is killed by galactose in the medium. Spirodela punctata (G. F. W. Meyer) Thompson growth on sucrose and galactose was indistinguishable. L.
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Autotrophy and heterotrophy in root herniparasites
Trends in Ecology & Evolution, 1989More than 3000 species of flowering plants are at least partially parasitic, acquiring water and solutes from the host via haustoria. More than one third of all parasitic angiosperms - the root hemiparasites - possess green leaves and root systems.
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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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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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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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