“…Unless otherwise indicated, the physiological studies were undertaken with Medium A prepared in one litre distilled water containing: KH2PO~, 9.5 mg; (NH4)2S04, 5 g; FeSO 4 • 7H20, I0 mg; ZnSO4.7H20, 5 mg; MnSO4-7H20, 1.0 mg; Co(NO3)2.6H20, 0.25 mg; Na2MoO4.2H20, 0.25 mg; CuSO4-5H20, 0.25 mg; the pH was 4-4. (Davies and Thomas, 1973). Analysis was carried out on the Technicon NC-2 amino acid analyzer using a 75 cm column, packed with type A resin.…”