英语词汇“auxotroph”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

auxotroph

/ˈɔːksətrəʊf

/ /ˈɔːksətrɒf/

noun Biology

A mutant organism (especially a bacterium or fungus) that requires a particular additional nutrient which the normal strain does not.These mutations result in plants that are stunted, have dark green leaves and show defects in flower development and timing of flowering, but unlike GA auxotrophs these mutants are not rescued by GA application....

While the purpose of early mutant isolations was mostly focused on the identification of auxotrophs, many of these early strains have been subjected to heavy mutagenesis.
Both of these mutants seem to be thiamin auxotrophs because they appeared normal when grown on media supplemented with 0.1 mM thiamin.

Derivatives

auxotrophic

adjective ...

Previous work on Drosophila de novo purine synthesis genes showed that 4 mg/ml RNA supplementation can rescue the phenotype of auxotrophic mutants fed a defined medium.
Linear relationships have been found between increasing levels of the supplied amino acid and the bioluminescence emission of the auxotrophic mutant of E. coli carrying the lux system.
The data indicate that the mutations complement with respect to the auxotrophic phenotype when grown on Sang's medium.

Origin

1950s: from Latin auxilium 'help' + Greek trophos 'feeder'.

单词	auxotroph
释义	auxotroph /ˈɔːksətrəʊf / /ˈɔːksətrɒf/ noun Biology A mutant organism (especially a bacterium or fungus) that requires a particular additional nutrient which the normal strain does not.These mutations result in plants that are stunted, have dark green leaves and show defects in flower development and timing of flowering, but unlike GA auxotrophs these mutants are not rescued by GA application.... While the purpose of early mutant isolations was mostly focused on the identification of auxotrophs, many of these early strains have been subjected to heavy mutagenesis. Both of these mutants seem to be thiamin auxotrophs because they appeared normal when grown on media supplemented with 0.1 mM thiamin. Derivatives auxotrophic adjective ... Previous work on Drosophila de novo purine synthesis genes showed that 4 mg/ml RNA supplementation can rescue the phenotype of auxotrophic mutants fed a defined medium. Linear relationships have been found between increasing levels of the supplied amino acid and the bioluminescence emission of the auxotrophic mutant of E. coli carrying the lux system. The data indicate that the mutations complement with respect to the auxotrophic phenotype when grown on Sang's medium. Origin 1950s: from Latin auxilium 'help' + Greek trophos 'feeder'.
随便看	primitive primitive accumulation Primitive Baptist primitive cell primitive circle primitive groove primitive lattice primitively Primitive Methodism Primitive Methodist Primitive Methodist Church Primitive Methodist Connexion primitiveness primitive plane primitive recursion primitive recursive primitive root primitive socialist accumulation primitive streak primitivisation primitivise primitivism primitivist primitivistic primitivization