Publications

rhizopus rhizopodiformis: emerging etiological agent of mucormycosis.	mucormycosis is caused principally by members of the genus rhizopus, especially r arrhizus and r. oryzae. infection attributable to r. rhizopodiformis has rarely been documented. of 13 cases of mucormycosis diagnosed during a 4-year period (1974 to 1978) at the mount sinai hospital, 6 cases, occurring within 9 months, were caused by r. rhizopodiformis. the six isolates were identified mainly by: growth at 50 degrees c; production of short, sometimes branched, sporangiophores arising from opposit ...	1979	457856
[induced variability of the lipase producing fungus rhizopus microsporus].	the most effective way for inducing mutants of rhizopus microsporus with an elevated lipolytic activity is the combined action of nitrosomethyl urea and uv. variants with the lipolytic activity of 3600--3700 units per 1 ml have been produced, thus being by 72--75% more effective than the parent culture.	1979	470631
[effect of various procedures of storing the fungus rhizopus microsporus uzlt-1, a lipase producer].	the effect of various storage procedures on the viability and synthesis of lipolytic enzymes by rhizopus microsporus uzlt-1 was studied. the best procedures of producer storage proved to be regular passages and lyophilization. these procedures made it possible to maintain stable activity of lipolytic enzymes produced by the fungus for a long time. the fungal storage in vaseline oil or in a dried state was less effective due to significant losses of its lipolytic capacity.	1979	514992
[effect of cultivation temperature on thermal stability of lipolytic enzymes of the fungus rhizopus microsporus, uzlt-1].	the yield, activity and thermal stability of lipolytic enzymes obtained from the culture fluid filtrates of rhizopus microsporus, uzlt-1, cultivated at 28, 38 and 48 degrees c (preparations i, ii and iii, respectively) were investigated. maximal lipolytic activity was found in prepartion ii, and maximal yield and thermal stability in preparation iii. by disc electrophoresis and deae-cellulose chromatography, the presence of three lipolytically active enzymes in the preparations was demonstrated.	1979	538012
[extracellular lipases of the fungus rhizopus microsporus uzlt-1].	lipase biosynthesis by the fungus rhizopus microsporus uzlt-1 was investigated. under certain conditions the fungus could produce two forms of extracellular lipases. the paper describes the process of purification of the enzyme l-i,n- and c-terminal amino acids of the lipases have been determined. identity of terminal amino acids of both enzymes has been demonstrated. it has been shown that both forms of lipase from rhizopus microporus hydrolyze predominantly alpha-ester bonds.	1978	674116
[effect of various nitrogen sources on lipase formation by rhizopus microsporus].	the effect of organic and mineral nitrogen sources on the production of lipolytic enzymes and the accumulation of biomass was studied with rhizopus microsporus uzlt-i. addition of mineral nitrogen sources to the growth medium weakly stimulated synthesis of lipase by the fungus. the production of lipolytic enzymes was highest on media with organic nitrogen compounds, particularly yeast autolysate and fodder yeast cells (0.1: 0.25%). the lipolytic activity of the cultural broth on media with these ...	1978	703647
hospital-acquired mucormycosis (rhizopus rhizopodiformis) of skin and subcutaneous tissue: epidemiology, mycology and treatment.		1978	703789
[effect of metal ions on the lipolytic activity of rhizopus microsporus].	various metal ions have different effect on the lipolytic activity of rhizopus microsporus in the course of cultivation on nutrient media having diverse composition. the fungus particulary requires metal ions for the production of lipase on a mineral medium. additional introduction of microelements into a medium containing maize extract has no significant effect on the lipolytic activity. active biosynthesis of lipase by the culture requires zinc.	1978	745554
factors affecting production of mold mycelium and protein in synthetic media.	the effects of certain cultural conditions on the yield of dry mycelium, protein, and total amino acid content of rhizopus oligosporus saito (nrrl 2710), rhizopus rhizopodiformis (cohn apud lichtheim) zopf (nrrl 6246), and absidia corymbifera (cohn) sacc. et trotter (nrrl 6247) were studied. the yield of mycelium was found to significantly increase as the spore inoculum was increased from 187,500 to 2,250,000 spores. but the total amino acids (grams/liter) did not change significantly, whereas t ...	1976	10836
rhizopus microsporus strain uzlt-i--a thermotolerant producer of lipase.	the properties of the thermotolerant fungus rhizopus microsporus strain uzlt-1--producer of lipolyptic enzymes are described. optimal cultivation conditions--40 degrees, c, ph 4.5--are determined. the lipolytic activity of the culture on the medium consisting of corn extract (2%), cotton-seed oil (1%) and water is 850 ml 0.1 n koh per 100 ml culture liquid. the enzymic preparations of lipase have been precipitated by isopropanol and ammonium sulphate. the preparation precipitated by isopropanol ...	1975	1738
an antifungal factor in human serum. i. studies of rhizopus rhizopodiformis.		1965	4959669
electron microscope observations of rhizopus rhizopodiformis.		1964	14247745