nonselective medium

nonselective medium

[¦nän·si‚lek·tiv ′mē·dē·əm]
(microbiology)
A culture medium that supports the growth of all genotypes.
References in periodicals archive ?
After X days' incubation at 36[degrees]C, the PAOs containing microcolonies consisting of [approximately equal to]200 cells were moved onto medium containing 0.5-2 [mu]g/mL of rifampin for 4 h, after which the PAOs were returned to nonselective medium. Filters were monitored for colony growth by using a MuScan microscopie system (LumiByte BV, Nuenen, the Netherlands) at 5x magnification; a [approximately equal to]0.44-[cm.sup.2] area was imaged at specific intervals before and after exposure to rifampin.
of samples) Campylobacter Antibiotic-free A (24) 54 (13) B (21) 95 (20) Conventional C (21) 90 (19) D (24) 100 (24) Total All (90) 84 (76) Nonselective medium, Selective medium, CIP-resistant CIP-resistant Campylobacter Campylobacter Antibiotic-free 13 (3) 13 (3) 0 (0) 5 (1) Conventional 19 (4) 43 (9) 33 (8) 96 (23) Total 17 (15) 40 (36) Table 3.
(1997) have reported that when the adaxial side of immature cotyledons is oriented upward on a nonselective medium, high induction of somatic embryogenesis is observed.
In contrast, all stool cultures were positive for Escherichia coli which always grew as pure cultures on purple bromocresol agar, a nonselective medium containing lactose.