I want to assay the ACC deaminase in my isolates, and the commonly used medium is the DF medium which contains MOO3 and gluconic acid. Can I replace them by sodium molybdate and glucose? Or can sombody help me with another minimal medium?
You might use ACC as the only Nitrogen source too. Quantify ACC-deaminase products after the assay to make sure you are not having interference from biological nitrogen fixation.
I used a minimal medium to test ACC-deaminase producing ability of a PGPB. If you still need to have a minimal medium composition, could you reply me your email so that I can send it to you?
Hello Van Thi Khanh Pham would you be so kind to send me the medium composition you used. I know 5 years have passed since you wrote this answer, but maybe you still have it and are willing to share?
Hello Van Thi Khanh Pham would you be so kind to send me the medium composition you used. I know 6 years have passed since you wrote this answer, but maybe you still have it and are willing to share?
ACC deaminase activity on the sterile minimal DF (Dworkin and Foster) salts media (DF salts per liter: 4.0 g KH2PO4, 6.0 g Na2HPO4, 0.2 g MgSO4.7H2O, 2.0 g glucose, 2.0 g gluconic acid and 2.0 g citric acid with trace elements: 1 mg FeSO4.7H2O, 10 mg H3BO3, 11.19 mg MnSO4.H2O, 124.6 mg ZnSO4.7H2O, 78.22 mg CuSO4.5H2O, 10 mg MoO3, pH 7.2) amended with 3 mM ACC instead of (NH4)2SO4 as sole nitrogen source (Dworkin and Foster, 1958; Penrose and Glick, 2003). The inoculated plates were incubated at 28°C for 3 days and growth was monitored on a daily basis. Colonies growing on the plates were taken as ACC deaminase producers. Samar Salama Natasha Tilikj
Hello Van Thi Khanh Pham would you be so kind to send me the medium composition you used. I know7 years have passed since you wrote this answer, but maybe you still have it and are willing to share?
Abd El-Rahman Fathy Gomaa, Pedro Beschoren da Costa, Marieta Marin-Bruzos I'm gonna asses the activity of the bacterial ACC deaminase with Dworkin and Foster minimal salt medium. However, I'm very surprised to see that it doesn't contain any source of Calcium. Is it normal ? Could it impede the growth of bacteria (PGPB) ?