Cultures of plant tissues or cells can be overwhelmed by bacteria and yeast or other fungi. Our Antibiotic Antimycotic Solution is routinely used prophylactically to keep these organisms from gaining a foothold. The solution contains penicillin, active against Gram-positive bacteria, streptomycin to control Gram-negative bacteria, and Amphericin B aimed at fungal contaminants. Amphotericin B creates holes in fungal membranes. Thiabendizole is also used to control mold and fungus in cultures, but can inhibit growth of some plants in various stages of generation. (1) Pentachloronitrobenzene (PCMB or quintazine) suppresses growth of any fungi but
Fusarium species, and is included in selective media such as Nash and Synder to allow quantitation and identification of Fusaria from soil samples.

1.Shields, R., Robinson, S.J., and Anslow, P.A. Use of fungicides in plant tissue culture. Plant Cell Reports 3:33 (1984)

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A5955 Antibiotic Antimycotic Solution (100×), Stabilized with 10,000 units penicillin, 10 mg streptomycin and 25 μg amphotericin B per mL, sterile-filtered, BioReagent, suitable for cell culture
P8556 Pentachloronitrobenzene plant cell culture tested, BioReagent, ≥94% (GC), powder
T5535 Thiabendazole plant cell culture tested, BioReagent, powder