Adel Mohammad Salama

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Mercuric chloride induced strong inhibitory effect on the growth, respiration and carbohydrate synthesis by mycelial felts of R. solani. Such inhibitory effects can be antagonised by the amino acid cysteine when mixed with the toxin in the nutritive medium. Methionine failed to do so. The possible explanations for the inhibitory actions of mercuric chloride(More)
A new modified medium favourable forPenicillium purpurogenum Stoll. to produce antibacterial and antifungal compounds was designed. Maximum antibacterial activity was reached in it after 12 days at 30°C.Staphylococcus aureus F DA 209 P,Pseudomonas pyocyanea, Mycobacterium phlei andCladosporium cucumerinum were the most sensitive organisms.
Sulfanilamide induced strong inhibitory effects on the growth, respiration and carbohydrate synthesis by mycelial felts of Rhizoctonia solani. The possible reasons for such inhibitory effects are discussed. The inhibitory effects of sulfanilamide were almost completely alleviated by the inclusion of p-aminobenzoic (PABA) acid in the culture medium of the(More)
The results reported have a bearing on the necessity of sodium as a complementary ion for better growth ofCunninghamella. This element effected moderate sucrose absorption, polysaccharide accumulation and gain in dry weight accompanied by least galactosan building, maximum respiration rate and carbohydrate accumulation. Potassium gave the maximum gain in(More)
Background: Reconstruction of the anterior cruciate ligament (ACL) has become a commonly performed procedure. Biomechanical studies have demonstrated that conventional singlebundle ACL reconstruction techniques are only successful in limiting anterior tibial translation but less effective for restoring rotatory laxity. Aim of the work: The purpose of this(More)
Colchicine had no significant effects on the rate of growth of Cunninghamella when administered in 5 p.p.m. concentration; at 10 p.p.m., it induced a slight increase, while at higher concentrations it lowered the dry weight. Pretreatment with colchicine, during the fungal growth induced a persistant activation of hexose phosphorylases, particularly fructose(More)
Colchicine at 5 and 10 p.p.m. increased both phosphorus uptake and incorporation into organic forms (nucleoproteins or other simpler organophosphorus compounds). Continuous supply of colchicine at 20 p.p.m., almost checked phosphorus uptake during the second 24 hours of the experiment. The absorbed nitrates were utilised through the classical reduction(More)
An experiment is reported in which 5 days old Cunninghamella spec. mats were incubated at 25°C over Richard's medium alone or together with colchicine. The results show that, up to 20 p.p.m., colchicine had no effect on dry weight and soluble sugar content of the fungal mats but caused an acceleration in the rate of sugar absorption and utilisation and(More)
The results of the present investigation proved that sucrose is utilised by mycelial mats of Rhizoctonia solani through a process of hydrolytic cleavage into glucose and fructose affected by an enzyme of the fructofuranosidase type attached to the cytoplasmic surfaces and not through the mediation of a specific sucrose phosphorylase enzyme.