heterotroph

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heterotroph

 [het´er-o-trōf″]
a heterotrophic organism.

het·er·o·troph

(het'ĕr-ō-trof, -trōf),
A microorganism that obtains its carbon, as well as its energy, from organic compounds.
See also: autotroph.
[hetero- + G. trophē, nourishment]

heterotroph

(hĕt′ər-ə-trŏf′, -trōf′)
n.
An organism that is dependent on complex organic substances for nutrition because it cannot synthesize its own food.

het′er·o·troph′ic adj.
het′er·o·troph′i·cal·ly adv.
het′er·ot′ro·phy (-ə-rŏt′rə-fē) n.

het·er·o·troph

(het'ĕr-ō-trōf)
A microorganism that obtains its carbon, as well as its energy, from organic compounds.
See also: autotroph
[hetero- + G. trophē, nourishment]

heterotroph

an organism dependent on obtaining organic food from the environment because it is unable to synthesize organic material. All animals, fungi, many bacteria, plants without chloroplasts and a few flowering plants (such as insectivorous plants) are heterotrophs, and they obtain almost all their organic material, either directly or indirectly, from the activity of AUTOTROPHS. See HOLOZOIC, SAPROPHYTE, PARASITE.
References in periodicals archive ?
Heterotrophically grown, spray-dried SZ and H were found to support Manila clam growth when added as supplements to rations of a mixed algal diet of T-ISO and Cc.
Some of these organisms have significant capacities to both heterotrophically nitrify and denitrify [2, 10, 19] and some synthesize [N.sub.2]O or [N.sub.2] during the course of heterotrophic nitrification [17, 20] or heterotrophic nitrification-aerobic denitrification metabolism [10,14-16,18, 21].
Identification of the bacterium as a Cupriavidus pauculus spurred an examination of its [Cu.sup.2+] and [Ni.sup.2+] resistance capacities, its ability to heterotrophically nitrify PO in the presence of these metals, and its use of the xenobiotic phenol in the absence or presence of [Cu.sup.2+] and [Ni.sup.2+] as this genus is known for its tolerance of metals and use of xenobiotics.
pauculus UM1 to produce nitrogenous gasses while heterotrophically nitrifying PO, the bacterium was grown to midto-late logarithmic phase in the PO-mineral salts medium described below, harvested by centrifugation (10,000 xg for 10 min) and washed twice in 50 mM pH 7.0 phosphate buffer to make resting cells.
pauculus UM1's ability to heterotrophically nitrify PO when either [Cu.sup.2+] or [Ni.sup.2+] was present, three different types of growth experiments were conducted.
To determine if the bacterium produces either [N.sub.2] or [N.sub.2]O while heterotrophically nitrifying, we attempted to grow the bacterium in sealed test tubes from which gasses could be sampled.
A number of organisms produce either [N.sub.2] or [N.sub.2]O while heterotrophically nitrifying or during heterotrophic nitrification-aerobic denitrification [2, 14, 16, 17, 20].
contains a nirS-like gene which it uses to denitrify [6], the organism did not invoke its use when heterotrophically nitrifying as evidenced by the lack of either [N.sub.2]O or [N.sub.2] synthesis under the heterotrophic nitrification or heterotrophic nitrificationaerobic denitrification conditions of the current study.
pauculus UM1 also grew readily and heterotrophically nitrified well, when in NB-PO with either 1mM [Cu.sup.2+] or 0.5 mM [Ni.sup.2+] (Table 1).
pauculus UM1 to heterotrophically nitrify PO in the absence of other carbon sources (no NB present) when either [Cu.sup.2+] or [Ni.sup.2+] was present was investigated.