phototroph


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pho·to·troph

(fō'tō-trōf),
An organism that uses light for its energy needs. Compare: photoautotroph, photoheterotroph, photolithotroph.
Farlex Partner Medical Dictionary © Farlex 2012

phototroph

(fō′tə-trŏf′, -trōf′)
n.
An organism that is capable of using light energy to synthesize sugars and other organic molecules from carbon dioxide. Green plants, algae, and cyanobacteria are phototrophs. Also called photoautotroph.

pho′to·troph′ic adj.
pho′to·troph′i·cal·ly adv.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

phototroph

an ORGANISM that uses light as the primary ENERGY source.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
This example also includes the cross feeding by the cyanobacteria that benefits the anoxygenic phototrophs. Evidence for cross feeding has actually been documented in Yellowstone Park by David Ward.
They combined their understanding of acquired phototrophs' metabolic capacities with a mathematical model of the impacts that such organisms--with dual roles as both predators and competitors of phytoplankton--would have on the ocean food web.
In their study, published in February 2016 in Ecology Letters, the research team showed that acquired phototrophs can have a dramatic impact on the dynamics of marine microbial communities, causing a series of boom-and-bust cycles.
In the field, mixotrophs can compete with heterotrophs for the uptake of food particles and with phototrophs for light and mineral nutrients.
Two qualitatively different interactions between mixotrophs and obligate phototrophs are possible.
It is not immediately clear that a mixotroph will compete with other phototrophs for dissolved mineral nutrients.