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Related to heterotroph: heterotroph hypothesis
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an organism that depends on complex organic substances for nutrition

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(18) One sample from household 3 had insufficient volume to complete the heterotroph assay.
Bacteria that break down organic molecules (such as proteins, carbohydrates, amino acids, and fatty acids) are heterotrophs and acquire these nutrients from other organisms.
The impact of chemical additives on microbiological activity was studied by analysis of the samples every 30 days in order to detect the quantities of aerobic heterotrophs and HDMs.
Heterotroph (Chapter 9)--An organism that obtains its energy and C for growth from organic matter.
Heterotroph. Organism not capable of producing own food.
Trophic relationships were evaluated by calculating the autotrophic index, a ratio of heterotroph to photoautotroph biomass.
Although most heterotrophic bacteria are not pathogenic and no relationship between heterotroph levels and disease has been demonstrated, their incidence in pool water makes them a significant source of information about the general sanitary quality of the pool.
The effect on the soil microbial community was to lower microbial biomass per unit organic matter, suggesting a more metabolically active heterotroph assemblage.
The primitive host cell, however, is thought to have been an anaerobic, but possibly aerotolerant, heterotroph with a functional glycolytic pathway (e.g., Margulis 1981; Ballantyne and Chamberlin 1988; Fenchel and Bernard 1993).
As Schizochytrium is a slow growing heterotroph consuming glucose at a slow rate, wai cultivation in a non carbon catabolite repression condition or in an increased acetyl-CoA synthethase state gives rise to higher growth and glucose consumption rates (27).
delitrix is a classic heterotroph, filtering POM from the water column and using this organic matter as a source of energy and C.
In terms of the relative importance of primary production and heterotroph activity in sea-ice communities, published research indicates a wide variety of situations, possibly due to changes related to seasonal succession.
Hypothesis 3 states that the high relative heterotrophic biomass in oligotrophic lakes results from the utilization of both autochthonous and allochthonous organic matter by planktonic heterotrophs. Some predictions of this hypothesis include: (1) Rates of heterotroph respiration should be uncoupled from rates of phytoplankton production; (2) plankton community respiration should not be bound by net phytoplankton production; and (3) A/H should be positively related to the ratio of phytoplankton production to plankton respiration (P/R ratio).
Synechococcus < 10 x [10.sup.3] cells m[L.sup.-1] Prochlorococcus [approximately equal to] 1.5 x [10.sup.3] -1.5 x [10.sup.5] cells m[L.sup.-1] Picophytoeukaryotes 1000-8000 cells m[L.sup.-1] Diatoms >15 [micro]m 1-14 cells [L.sup.-1] Dinoflagellates, 31-43 cells m[L.sup.-1] total % autotrophic 32-49% cells > 15 [micro]m 23-36 cells [L.sup.-1] ([approximately equal to]0.1% total) % heterotroph, 25%-80% all eukary.
If you can't create your own food like an autotroph, then you are a heterotroph. Humans are heterotrophs--carnivores, vegetarians, and vegans alike.