autotroph

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autotroph

 [aw´to-trōf]
an autotrophic organism.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

au·to·troph

(aw'tō-trōf),
A microorganism that uses only inorganic materials as its source of nutrients; carbon dioxide is the autotroph's sole carbon source.
[auto- + G. trophē, nourishment]
Farlex Partner Medical Dictionary © Farlex 2012

autotroph

(ô′tə-trŏf′, -trōf′)
n.
An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.

au′to·troph′ic adj.
au′to·troph′i·cal·ly adv.
au·tot′ro·phy (ô-tŏt′rə-fē) n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

au·to·troph

(aw'tō-trōf)
A microorganism that uses only inorganic materials as its source of nutrients; carbon dioxide serves as the sole carbon source.
[auto- + G. trophē, nourishment]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

autotroph

an organism that can manufacture its own organic requirements from inorganic materials independent of other sources of organic substrates. Autotrophs are either phototrophic (see PHOTOAUTOTROPH or CHEMOAUTOTROPHIC, energy being derived either by photosynthesis where chlorophyll is present, or from inorganic oxidation where it is absent (e.g. hydrogen sulphide is oxidized by sulphur bacteria). Autotrophs are primary producers (see PRIMARY PRODUCTION). Compare HETEROTROPH.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
thermophila is, contrary to the common opinion, able to perform hydrogenotrophic methanogenesis independently from other methanogenic substrates and to build up biomass autotrophically. Achieved C[H.sub.4] production rates were lower than those commonly found during methanogenesis from the preferred substrates acetate or methanol, but although carbon supply during incubations was restricted by the available volume of the headspace, M.
Most are heterotrophic, yet many obtain energy autotrophically from chemical reactions with certain soil substances.
This microorganism is able to grow heterotrophically, autotrophically, and mixotrophically [7] and at high concentrations of metals such as copper [6].
nov., a Novel Hyperthermophilic Archaeon Capable of Oxidizing Organic Acids and Arowing Autotrophically on Hydrogen with Fe(III) Serving as the Sole Electron Acceptor.