autotroph


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Related to autotroph: heterotroph

autotroph

 [aw´to-trōf]
an autotrophic organism.

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]

autotroph

/au·to·troph/ (aw´to-trōf) an autotrophic organism.

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.

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]

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.

autotroph

an autotrophic organism.
References in periodicals archive ?
I've found, for example, that several subgroups of the highly abundant heterotrophic bacteria known as SAR11 seem to enjoy snacking on organic carbon produced by the autotroph Prochlorococcus, but they appear to be unaffected by organic carbon from any other source we've tested.
In this way, we can begin to identify which organic compounds made by which autotrophs are preferred by which heterotrophs.
Through a combination of computational and statistical analyses, we are uncovering the chemical compounds that various autotrophs release from their cells to the ocean, and we are beginning to make connections between the identity of the producer and the material it produces.
Autotrophs are also known to simply exude organic carbon compounds from their cells into the water.
They were all produced by autotrophs but are no longer part of any living organism for a variety of reasons.
A key to my research is that autotrophs and heterotrophs each prefer to use a different form of carbon.
A key to distinguishing between autotrophs and heterotrophs is that they use different sources of carbon.
There are two main kinds of microbes: Autotrophs use sunlight to convert carbon dioxide into organic carbon.
Experiments are conducted during the day when photosynthetic autotrophs, which need sunlight, are active, and at night, when heterotrophs are the more active organisms.
To do these experiments at sea--on a ship in the middle of the Atlantic or Pacific Ocean--I fill a large bottle with about five gallons of seawater, then add heavy-carbon-labeled "food" for either the heterotrophs or the autotrophs and let them do their microbial chemistry.
Heterotrophs, however, may have evolved from autotrophs, so the line 'autotrophs began to drool' could be taken as a poetic way of saying that autotrophs evolved into heterotrophs, with the ability not only to use external food sources, but to drool at the prospect of eating them.
According to ammonium oxidation activity, there was one isolate suspected as AOB which grown on autotrophs media.