auxotrophic
auxotrophic [ôk΄sə träf′ik]
adj.
< Gr auxein, to increase + -TROPHIC
designating or of a mutant organism requiring more nutritional substances than its prototrophic parent because it has lost the ability to make a certain enzyme
auxotroph [ôk′səträf΄]
n.

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aux·o·troph·ic (ôk'sə-trŏfʹĭk, -trōʹfĭk) adj.
Requiring one or more specific substances for growth and metabolism that the parental organism was able to synthesize on its own. Used with respect to organisms, such as strains of bacteria, algae, or fungi, that can no longer synthesize certain growth factors because of mutational changes.
  [Greek auxein, to increase; see auxin + -trophic.]   aux·otʹro·phy (ôk-sŏtʹrə-fē) n.

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Universalium. 2010.

Look at other dictionaries:

  • auxotrophic — [ôk΄sə träf′ik] adj. [< Gr auxein, to increase + TROPHIC] designating or of a mutant organism requiring more nutritional substances than its prototrophic parent because it has lost the ability to make a certain enzyme auxotroph [ôk′səträf΄] n …   English World dictionary

  • auxotrophic — adjective Etymology: Greek auxein to increase + o + English trophic Date: 1944 requiring a specific growth substance beyond the minimum required for normal metabolism and reproduction by the parental or wild type strain < auxotrophic …   New Collegiate Dictionary

  • auxotrophic — Pertaining to an auxotroph. * * * auxo·tro·phic .ȯk sə trō fik adj requiring a specific growth substance beyond the minimum required for normal metabolism and reproduction of the parental or wild type strain <auxotrophic bacterial mutants> …   Medical dictionary

  • auxotrophic — adjective Describing a strain of organism that requires a specific metabolic substance that the parent organism was able to synthesize by itself See Also: auxotroph, auxotrophy …   Wiktionary

  • auxotrophic — auxo·tro·phic …   English syllables

  • auxotrophic — …   Useful english dictionary

  • auxotrophic mutation — auxotrophic mutation. См. ауксотрофная мутация. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • auxotrophic mutation — auksotrofinė mutacija statusas T sritis augalininkystė apibrėžtis Geninė (biotechninė) mutacija, pasireiškianti padidėjusiu mutanto tam tikrų augimo veiksnių poreikiu. atitikmenys: angl. auxotrophic mutation rus. ауксотрофная мутация …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • auxotrophic mutation — a mutation resulting in the inability of bacteria to grow on minimal media …   Medical dictionary

  • auxotroph — auxotrophic, adj. /awk seuh trof , trohf /, n. Biol. a mutant organism, esp. a microorganism, that has a nutritional requirement not shared by the parent organism. Cf. prototroph (def. 1). [1950 55; back formation from auxotrophic; see AUXO ,… …   Universalium

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