APAKAH MAKSUD AUXOTROPH dalam CORSICA?
Auxotrophy
Auxotrophy adalah ketidakupayaan organisma untuk mensintesis sebatian organik tertentu yang diperlukan untuk pertumbuhannya. Auxotroph adalah organisma yang memaparkan sifat ini; auxotrophic adalah kata sifat yang sepadan. Auxotrophy adalah bertentangan dengan prototrofi, yang dicirikan oleh keupayaan untuk mensintesis semua sebatian yang diperlukan untuk pertumbuhan. Kaedah penyaduran replika yang dilaksanakan oleh Esther Lederberg termasuk auxotrops yang sensitif suhu; iaitu kemampuan mereka untuk mensintesis adalah bergantung kepada suhu. Auxotroph berbilang juga boleh wujud bersama pada masa yang sama, dalam organisma yang sama. Dalam genetik, ketegangan dikatakan auksotropik jika ia membawa mutasi yang menyebabkan ia tidak dapat mensintesis sebatian penting. Sebagai contoh, mutant yis dengan gen laluan sintesis uracil yang tidak aktif adalah uracil auxotroph. Ketegangan semacam itu tidak dapat mensintesis uracil dan hanya dapat tumbuh jika uracil dapat diambil dari alam sekitar. Ini adalah bertentangan dengan prototroph uracil, atau dalam hal ini strain jenis liar, yang masih boleh tumbuh tanpa ketiadaan uracil.
Definisi auxotroph dalam kamus Corsica
Definisi auxotroph dalam kamus adalah ketegangan mikroorganisma yang mempunyai keperluan nutrisi tambahan kepada organisme normal.
CORSICA BUKU YANG BERKAIT DENGAN «AUXOTROPH»
Ketahui penggunaan
auxotroph dalam pilihan bibliografi berikut. Buku yang berkait dengan
auxotroph dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
If colonies also grow on minimal agar, the bacterium is a prototroph; if no
colonies grow on the minimal agar, it is an auxotroph that requires some
substance that is absent in the minimal agar. Minimal plates are then prepared
with various ...
Stanley R. Maloy, John E. Cronan, David Freifelder,
1994
2
Methods in Plant Cell Biology
Table I Complementation of Saccharomyces cerevisiae mutants by Arabidopsis
thaliana cDNAs S. cerevisiae mutant Function/phenotype Complementation
Reference ural Uracil auxotroph + Minet et al., 1992 ura2 Uracil auxotroph +
Minet et ...
David W. Galbraith, Hans J. Bohnert, Don P. Bourque,
1995
3
Essential Fungal Genetics
The same logic applies to reverse mutations from auxotrophy to prototrophy.
These mutations can be detected readily simply by plating spores of the
auxotroph at high density on minimal medium. Reverse mutation (or reversion) to
prototrophy ...
David Moore, LilyAnn Novak Frazer,
2002
It was found that the auxotroph A harbours a bacteriophage. The phage DNA is
permanently carried by the bacterium and this phenomenon is called lysogeny.
Such phages are called temperate phages. The non-infective viral genome ...
5
Branched-Chain Amino Acids—Advances in Research and ...
auxotroph. By a News Reporter-Staff News Editor at Journal of Engineering —
Researchers detail new data in Essential Amino Acids. According to news
reporting originating in Research Triangle Park, North Carolina, by VerticalNews
...
6
Enhancing Biocontrol Agents and Handling Risks
The auxotroph is seeded into media lacking the amino acid required for growth.
Suhsequent growth of the auxotroph in the media is dependent upon and
proportional to the quantity of added amino acid. For example, in order to assay
valine, ...
7
Protein Engineering and Design
In VIVo seleCTions auxOtrOph cOmplementatiOn The implementation of genetic
selections in biocatalyst optimization has proven difficult. The most common
examples involve auxotroph complementation, in which the enzymatic activity of
...
Sheldon J. Park, Jennifer R. Cochran,
2009
8
Variation, Senescence, and Neoplasia in Cultured Somatic Cells
Subsequently, the auxotroph enrichment technique was combined with chemical
mutagenesis to obtain variant hamster clones unable to survive in the absence of
other metabolites such as inositol, hypoxanthine, or glycine, or in the absence ...
John W. Littlefield,
1976
9
Extremophiles Handbook: ...
PyrF+ DOUBLE-crossover transformation; 5-FOAR counter-selection Target pyrF
Transforming DNA Target T. kod. KU216 (Δ pyrF) Intermediate strain retains
target gene (uracil auxotroph; 5-FOAR) Procedure 1 Target ...
10
Cracking the SAT II Biology E/M Subject Test: 2005-2006
So an auxotroph is an organism that requires supplementary nutrition. Most
bacteria are not auxotrophs and are referred to as wild type. These bacteria are
perfectly capable of synthesizing all the building blocks they need in terms of
nutrition, ...
Princeton Review, Judene Wright,
2005
BARANGAN BERITA YANG TERMASUK TERMA «AUXOTROPH»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
auxotroph digunakan dalam konteks perkara berita berikut.
UC Berkeley researchers use 'secret code' to 'lock' genetically …
The final E. coli organism is called a synthetic auxotroph — a life form engineered so that it cannot grow unless supplemented with a particular ... «Daily Californian, Jun 15»
Tumor-Targeting Mutant of Salmonella Typhimurium Treats Mouse …
... Salmonella typhimurium leucine-arginine auxotroph cures orthotopic human breast tumors in nude mice. Cancer Res. 2006, 66, 7647-7652. «News-Medical.net, Jun 15»
Scientists Use Molecular 'Lock and Key' for Potential Control of GMOs
The technique turns the bacteria into a synthetic auxotroph, an organism modified to require a particular compound for its growth. It could ... «Scicasts, Jun 15»
Biological safety lock for genetically modified organisms
Church determined that another key to making a successful "synthetic auxotroph" was to ensure that the E. coli's lives depended on the artificial ... «Phys.Org, Jan 15»
Snowdrift game dynamics and facultative cheating in yeast
In addition, the cooperator strain in our experiments is a histidine auxotroph; therefore, limiting the histidine concentration in the media slows ... «Nature.com, Apr 09»