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definitions

prototroph

[proh-tuh-trof, -trohf]

noun Biology.

a microorganism that has the same nutritional requirements as the parent organism.Compare auxotroph.
an organism or cell capable of synthesizing all its metabolites from inorganic material, requiring no organic nutrients.

Origin of prototroph

First recorded in 1945–50; back formation from prototrophic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
prototroph in Medicine

prototroph

[prō′tə-trŏf′, -trōf′]

n.

A bacterial strain that has the same nutritional requirements as the wild type strain from which it was derived.
Related formspro′to•troph′ic (-trŏf′ĭk, -trō′fĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.