STUDIES CONCERNING THE INFLUENCE OF SOME AMINO ACIDS ON THE DYNAMICS OF KREBS CYCLE DEHYDROGENASES ACTIVITY AT MONILINIA LAXA (ADERH.& RUHL.) HONEY PARASITE ON PLUM TREES

As ubiquitous organisms, fungi grow on a large number of organic substrate, alive or dead, confronting therefore with a wide variety of carbohydrates and various physical factors, and their versatility to adapt and be able to use a large number of these compounds could provide them the chance to survive. Given that, these fungi have a rich enzyme equipment that allows them to operate on different metabolic pathways, this study aims to monitor the dynamics activity of some Krebs cycle dehydrogenases in Monilinia laxa (Aderh & Ruhl.) Honey species parasitic on various species of plum trees. To this end, the fungus was cultivated in vitro on media enriched with different carbohydrates and the isocitrate dehydrogenase, -cetoglutarate dehydrogenase, succinate dehydrogenase and malate dehydrogenase activity in the fungus mycelium was followed, at 7, respectively, 14 days after the inoculation of the culture medium and determined using the spectrophotometric S soev and Krasna method (Cojocaru, D.C., 2009). Data revealed obvious differences depending on the type of carbohydrate introduced into the medium and the age of the culture mycelia.