Description Phyto Peptone Sucrose Agar is a phytopathological media, used as a semi selective Agar medium to detect Xanthomonas axonopodis pv. malvacearum in naturally infected cotton seed.
Quantity required by litre 43 g
Appearance Cream to yellow homogeneous free flowing powder
Colour and Clarity of prepared medium Yellow coloured clear to slightly opalescent gel forms in Petri plates
Cultural Response Cultural characteristics observed after an incubation at 30-32°C for 5-6 days with added PSA supplement .
Storage Store below 30°C and the prepared medium at 2 - 8°C
Gelling Firm, comparable with 1.5% Agar gel
Compositions (g/L) Peptone 5.000, Ferrous sulphate 0.500, Disodium hydrogen phosphate 2.000, Calcium nitrate 0.500, Sucrose 20.000, Agar 15.000, Final pH ( at 25°C) 6.8±0.2