wild-type strain


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wild-·type strain

a strain found in nature or a standard strain.
See also: auxotrophic strains, prototrophic strains.
References in periodicals archive ?
Differences among wild-type strains in virulence genes profiles may account for different effects, with potential for espL and nleE genes having significant roles in impairment of cell migration.
pneumoniae [35] as well as Serratia marcescens [36] was lower in oxyR mutant strains compared to the wild-type strains. It is possible that activation of fimB is linked to transcriptional activation of the oxyR gene following FimH-mannose binding.
The endemic equilibria exist in the case where only the wild-type strain is present, the case where only the resistant strain exists or both strains coexist.
The complemented strains cultured on AS-168 plates with antibiotics were able to keep moisture as the wild-type strain (Figure 4(c)), while the mutants were dry and defective in mucoid polymers.
The invasion ability of the [DELTA]tolC in THP1 derived macrophages was significantly reduced when compared to the wild-type strain and [DELTA]tolC+ strain of acute strains (p<0.0001, Fig.
To determine the factors involved in plant growth promotion by this organism, we mutagenized wild-type strain B16 using OmegaKm elements and isolated one mutant, K818, which is defective in plant growth promotion, in a rockwool culture system.
a round 3.5-4.5 nmols.min.mg) compared with 11.77 [+ or -] 1.34 nmols.min.mg in the wild-type strain. However, the net nitrate uptake level in the older cells (i.e.
The researchers found that the wild-type strain was able to establish significantly more colonies in the swine GI tract than the mutant strain.
coli which includes the wild-type strain, AJW678, and a set of isogenic mutants in varies cell surface organelle or regulator genes.
cereus 569, the wild-type strain, 15-minute treatments at 37 C resulted in: a 3.9 [log.sub.10] germination after exposure to 150 MPa; a 3.2 [log.sub.10] germination at 200 MPa exposure; and a 3.0 log[10.sub.10] germination after exposure at 250 MPa using an initial spore count of ~1 x 108 per mL.