revertant


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re·ver·tant

 (rĭ-vûr′tnt)
adj.
Having reverted to the normal phenotype, usually by a second mutation: a revertant mutant; revertant cells.
n.
A revertant organism, cell, or strain.

revertant

(rɪˈvɜːtənt) biology
n
a mutant cell, organism, etc, that has reverted to an earlier form
adj
having mutated to an earlier form

re•ver•tant

(rɪˈvɜr tnt)
Biol. adj.
1. that has reverted to a previous form by undergoing a second mutation: a revertant strain.
n.
2. a revertant gene, cell, organism, or strain.
[1950–55]
References in periodicals archive ?
The revertant colonies on the test and control plates were counted with a colony counter (Biocount 2000, Biosys), and the presence of the background lawn resulting from the trace of histidine added to the top agar was confirmed on all plates.
1 virus carrying the revertant H253Y mutation exhibited [approximately equal to] 9-fold higher [IC.
Revertant somatic mosaicism by mitotic recombination in dyskeratosis congenita.
Smith FJ, Morley SM, McLean WH: Novel mechanism of revertant mosaicism in Dowling-Meara epidermolysis buuosa simplex.
After incubation, the number of revertant bacteria colonies, which signifies mutation events, was counted.
It is likely that reverted oysters would exhibit lower fecundity than diploid oysters because revertant oysters are mosaic; i.
These new data illustrate the functional role that TSAP6 plays in the cell, and more specifically during the process where a cancerous cell turns into a revertant cell with a suppressed malignant phenotype.
Given the problems of long-term carriers, revertant strains, and limitations of surveillance, it is very difficult to certify an area as polio free, even without the possibility that someone may be developing a biological weapon using polio.
The most genre-hopping, elegantly packaged reissue-based recordings are on John Fahey's Revertant label.
1980) reported that addition of acetone extract of vegetables to the Salmonella mutagenicity assay mixture of benzo(a)pyrene (BaP) and 3-methylcholanthrene, reduced the number of revertant colonies.
Contact-inhibitory factor (CIF) was first isolated by George Lipkin and his colleagues from revertant hamster melanoma cells, which had lost some malignant characteristics.
These viruses may be revertant attenuated vaccine strains that have arisen as a result of the widespread use of IBV vaccines in the local poultry population in China.