Publications

[dynamics of decomposition of labeled algae by bacteria].		1974	4216746
[septicemia due to bacillus cereus. pathogenicity of bacteria of the genus bacillus].		1974	4216887
isolation of higher molecular weight dna from bacillus cereus t using proteinase k.		1974	4216895
[liberation of enzyme activities correlated with the utilization of exogenous amp in the bathing medium of bacillus cereus cells].		1974	4217191
fatal bacillus cereus pneumonia and sepsis in a child with cancer.		1974	4217234
temperature sensitivity of sporulation in bacillus cereus.		1974	4217358
affinity chromatography of thermolysin and other neutral metalloendopeptidases.		1974	4217421
[the formation of traces of carbon monoxide by saccharomyces cerevisiae and other microorganisms (author's transl)].		1974	4217594
microbial production of vitamin b12 antimetabolites. i. n5-hydroxy-l-arginine from bacillus cereus 439.		1974	4217787
[morphological characteristics verus the physiological and biochemical regularities of the activity of microoroganisms during periodic and continuous cultivation (literature review)].		1974	4218032
[decarboxylase activity of strains of bac. cereus of different origin].		1974	4218038
effect of carbohydrates and related compounds on the long-term preservation of freeze-dried bacteria.		1974	4218151
role of some elements on the enzymatic transformation of cortisol with bacillus cereus.		1974	4218347
[preservation of a culture of bacillus cereus by lyophilization].		1974	4219047
[a comparative study of the frequency of purine block occurrence in the ribosomal rna of several species of bacteria].		1974	4219091
separation, purification and properties of beta-lactamase i and beta-lactamase ii from bacillus cereus 569/h/9.	1. a procedure was devised which is suitable for the isolation of beta-lactamase i and beta-lactamase ii from bacillus cereus 569/h/9 on a large scale. after adsorption on to celite both enzymes were eluted in good yield and separated by chromatography on sephadex cm-50. 2. beta-lactamase i was separated into three main components by isoelectric focusing and into two components by chromatography. 3. the zn(2+)-requiring beta-lactamase ii obtained by this procedure had a lower molecular weight (2 ...	1974	4219278
metal cofactor requirements of beta-lactamase ii.	1. the apoenzyme obtained on removal of zn(2+) from beta-lactamase ii from bacillus cereus 569/h/9 showed less than 0.001% of the activity of the zn(2+)-containing enzyme. 2. removal of zn(2+) led to a conformational change in the enzyme and partial unmasking of a thiol group. 3. replacement of zn(2+) by co(2+), cd(2+), mn(2+) or hg(2+) gave enzymes with significant, but lower, beta-lactamase activity. no activity was detected in the presence of cu(2+), ni(2+), mg(2+) or ca(2+). 4. equilibrium d ...	1974	4219279
immunoelectrophoretic analysis of surface antigens in vegetative cells and spores of bacillus cereus.		1974	4219769
[d-cycloserine and germination of bacillus cereus spores].		1974	4220027
letter: bacillus cereus septicaemia.		1974	4132505
structure of two phages of bacillus thuringiensis and b. cereus.		1974	4132606
food-poisoning episodes associated with bacillus cereus in fried rice.		1974	4133716
cold lability of bacillus cereus bacteriophage cp-51.	phage cp-51 was rapidly inactivated when stored at the usual refrigerator temperatures (2 to 4 c) and even more rapidly when exposed to 0 c. the loss in viability resulting from exposure to cold appeared to correlate with the increase in number of phage particles having contracted tails. high concentrations (0.01 m) of mg(2+), ca(2+), or mn(2+) stabilized the phage considerably, but even in the presence of these divalent cations, it was much less stable at 0 c than at 15 c.	1974	4138063
[actinomycin d-o].		1974	4142853
structural studies relating to the distribution of molecular components in erythrocyte membranes.		1974	4152595
biosynthesis of branched long-chain fatty acids by species of bacillus: relative activity of three alpha-keto acid substrates and factors affecting chain length.		1974	4155346
synthesis and antimicrobial properties of 17beta-amino-4-aza-5alpha-androstane and derivatives.		1974	4204343
unsaturated fatty acid synthesis is not required for induction of lactose transport in escherichia coli.		1974	4204551
clostridium welchii and bacillus cereus infection and intoxication.		1974	4377580
conformational changes in the extracellular beta-lactamase i from bacillus cereus 569/h/9.	1. the thermal denaturation and precipitation of beta-lactamase i from bacillus cereus 569/h/9 at 60 degrees c are reversible, a soluble and almost fully active enzyme being obtained after solution of the precipitate in 5m-guanidinium chloride or 8m-urea and subsequent removal of the denaturing agent. 2. inactivation of beta-lactamase i occurs rapidly between 50 degrees and 55 degrees c and is shown by circular-dichroism spectra to be accompanied by an extensive conformational change. 3. a chang ...	1974	4464849
phospholipids of adrenal cortex mitochondria and the steroid hydroxylases: the lipid-environment of cytochrome p-450.		1974	4364009
lecithin biosynthesis in liver mitochondrial fractions.		1974	4366393
metabolism of glycol-derived lipids in novikoff hepatomas.		1974	4366955
applications of phospholipase c in the study of membranes.		1974	4367390
circular dichroism spectra of dna of high adenine plus thymine content.		1974	4368504
bacterial exoenzymes toxic for insects; proteinase and lecithinase.		1974	4370965
the effect of phospholipase on the binding of asialoglycoproteins by rat liver plasma membranes.		1974	4371836
[phospholipases of bacterial origin (author's transl)].		1974	4373177
hybrid isolation by recovery of rna-dna hybrids from agar using s1 nuclease.	a method for recovering rna-dna hybrids from agar employing a single strand specific nuclease is described. the procedure is suitable for large scale isolations, and immobilization of the dna in agar prior to hybridization allows a high yield of hybrid without interference by dna reannealing.	1974	10793757
[antibacterial activity and presence of mercury in 12 species of marine algae].		1975	820360
[microorganisms in gums. iv. microbial degradation of plant exudates and seaweed extracts (author's transl)].	the three plant exudates gum traganth, gum arabic, and gum karaya and the two seaweed extracts carrageenan and alginate were degraded by five different bacilli which were isolated from these gums: bacillus coagulans, b. lentus, b. cereus, b. licheniformis, and b. firmus. after 14 days all the gums have been degraded by these bacilli to a different extent after addition of trace elements. the fractions of degraded gums by tlc, glc, and ir-spectroscopy have been examined with the following results ...	1975	817530
[study of the antagonistic action of actinomycetes on anthrax bacilli].	capacity for the growth inhibition of the highly virulent causative agent of siberia plague was studied with respect to actinomycetous strains from soil samples of the ukraine. it was found that on nutrient media 88.4, 88.9, 88.1 and 93.4% of the isolates inhibited the growth of bac. anthracis, bac. cereus, bac. mycoides and tsenkovsky vaccine strain respectively. representatives of very different taxonomic groups were found among the antagonistic actinomycetes. clearance of the soil from siberi ...	1975	817657
[morph-physiological researches on schizomycetes. morphogenesis and cytoarchitecture of the microbial colony. ii : b. cereus].		1975	818966
evidence for the existence of two isozymes of aconitate hydratase and its correlation with 59fe uptake in bacillus cereus t.		1975	815164
[dissociative phases and pathogenicity of different species of the bacillus genus].	the previously postulated hypothesis, according to which different species of the genus bacillus show strictly similar morphological and biological properties when the same variants are considered, has been confirmed by the present research. the "s" (smooth) variants of the five studied species (b. anthracis, b. subtilis, b. cereus, b. megaterium, b. mesentericus) are all lethal, at the experimented dose, for mice, whereas the "r" (rough, "star-shaped" colonies) variant of the same strains of th ...	1975	820277
some properties of a d-alanine carboxypeptidase in envelope fractions of neisseria gonorrhoeae.	envelope preparations of neisseria gonorrhoeae strain gc1 (a stable, piliated strain of intermediate colony morphology) and type t1 possess a d-alanine carboxypeptidase which releases the terminal alanine residue from the uridine 5'-diphosphate-n-acetyl muramylpentapeptide substrate (isolated from bacillus cereus t). the d-alanine carboxypeptidase of the gc1 envelopes has a broad ph optimum between ph 8.0 to 10.0. when the molarity of the tris(hydroxymethyl)aminomethane buffer was varied, the ac ...	1975	332
phospholipase d activity of gram-negative bacteria.	a phospholipase hydrolyzing cardiolipin to phosphatidic acid and phosphatidyl glycerol was characterized in gram-negative bacteria but was absent in preparations of gram-positive bacteria, saccharomyces cerevisiae, and rat liver mitochondria. in cell-free extracts of escherichia coli, salmonella typhimurium, proteus vulgaris, and pseudomonase aeruginosa, this cardiolipin-hydrolyzing enzyme had similar ph and mg2+ requirements and displayed a specificity which excluded phosphatidyl glycerol and p ...	1975	360
regulation of dihydrodipicolinate synthase during growth and sporulation of bacillus cereus.	a four- to sixfold increase in specific activity of dihydrodipicolinic acid synthase was observed during sporulation of bacillus cereus. the enzyme from cells harvested before and after the increase in specific activity appeared to be very similar as judged by ph optima, heat denaturation kinetics, apparent michaelis constants, chromatography on diethylaminoethyl-cellulose and sephadex g-200, and polyacrylamide gel electrophoresis. studies with various combinations of amino acids and one of the ...	1975	367
heat resistance of ileal loop reactive bacillus cereus strains isolated from commercially canned food.	sporeformers isolated from a commercially canned food were identified as bacillus cereus, lactose-positive variants. the thermal resistance of spore crops produced from each of two representative cultures was determined in 0.067 m phosphate buffer at ph 7.0. the d121.1 values for one isolate were approximately 0.03 min (z = 9.9c), whereas the d121.1 values for the other isolate were 2.35 min (z = 7.9 c). thermal inactivation results for heat-stressed isolates from each strain showed no significa ...	1975	2108
affinity of cellular constituents of two bacteria for fluorescent brighteners.	two fluorescent brighteners were used to stain an isolate of bacillus cereus var. mycoides and soil pseudomonad. the stained organisms were fractionated by two procedures to determine which cellular constituents were reacting with the brighteners. both fractionation procedures provided evidence that the brighteners were adsorbed to proteins within the cells. microscopy examination of ghost cells of the bacillus showed that cell walls were not being stained. spheroplasts of the bacillus and t ...	1975	46739
[bacteriological diagnosis of food poisoning caused by bacillus cereus].		1975	48597
the location of bacterial antigens on sections of bacillus cereus by use of the soluble peroxidase--anti-peroxidase complex and unlabelled antibody.	the location of antigens on sections of bacteria using the soluble peroxidase-anti-peroxidase complex in conjunction with unlabelled antibody is described. using this technique, spore antigens have been detected in the cytoplasm of vegetative cells during forespore septum formation and subsequent stages of sporulation. antigenic sites were first associated with poly-beta-hydroxybutyric acid granules and subsequently were found in increasing quantities in the cytoplasm of the sporangium. vegetati ...	1975	50408
photobiological behaviour of bacteria and phages supplemented with aza-analogoues of nucleic acid bases.	the photochemical stability of anomalous nucleic acid bases of the azatype, 5-azacytosine (i), 5-azacytidine (ii), 6-azacytosine (iii), 6-azacytidine (iv), 6-azathymine (v), 6-azauracil (vi), and 8-aza-adenine (vii) to u. v. light of the wavelength 254 nm differs from the u. v. stability of the normal constituents. changes of the u.v. inactivation of escherichia coli k12 c600, e. coli b, bacillus cereus, as well as e. coli phages gamma cb2 and gamma b2b5 supplemented with azaderivatives prior to ...	1975	52947
asymmetry of influenza virus membrane bilayer demonstrated with phospholipase c.		1975	163976
a method for the quantitative determination of glycerolipids containing o-alkyl and o-alk-1-enyl moieties.	we have developed a spectrophotometric procedure, based on a combination of established methods, for the quantitative determination of aklyl and alk-1-enyl (plasmalogens) ether-linked glycerolipids. it depends upon the release of alkylglycerols and alk-1-enylglycerols from phospholipids by phosphlipase c (bacillus cereus) followed by saponification or by vitride reduction the phospholipids; aldehydes are subsequently formed and measured colorimetrically after reacting them with a fuchsin reagent ...	1975	164236
changes in phosoholipid susceptibility toward phospholipases induced by atp depletion in avian and amphibian erythrocyte membranes.	about half of the sphingomyelin content of fresh and atp-depleted chicken erythrocytes is hydrolysed by sphingomyelinase. removal of spingomyelin exposes the rest of the membrane phospholipids to hydrolysis by phospholipase c only in atp-depleted but not in fresh cells. addition of both sphinogomyelinase and phospholipase c to atp-depleted cells causes about 60-70 percent hydrolysis of the total phospholipids accompanied by extensive (90 percent) hemolysis. the phospholipids of toad erythrocytes ...	1975	164239
relationship between the dna content and mesosome number in cells of bacillus.	in cells of bacillus there is evidence that deoxyribonucleic acid forms an association with some membranous structure within the cell, possibly mesosomes. cells of varieties of bacillus cereus and bacillus subtilis were examined to see if any quantitative relationship existed between the numbers of mesosomes and dna content. no direct relationship could be domonstrated. however, cells of bacillus cereus var. alesti a(-) maintained a characteristic and constant dna content and number of mesosomes ...	1975	164998
beta-lactamase (bacillus cereus).		1975	166286
phospholipase c catalyzed formation of sphinogomyelin--14c from lecithin and n-(-14c)-oleoyl-sphingosine.	commercial preparations of clostreidium perfringens were incubated with phosphatidyl choline and n-1-(-14c) oleoylsphingosine. a radioactive product was formed which cochromatogramed with spingomyelin standard in three different solvent systems. several other phospholipases and phosphatases were unable to catalyze this reaction. neither choline, phosphoryl choline, cytidine diphosphate choline nor p-nitrophenyl phosphoryl choline were acitve donors. sphingomyelin was only slightly active as ...	1975	167259
inactivation of glucose 6-phosphate dehydrogenase during germination and outgrowth of bacillus cereus t endospores.	the specific activity and total activity of glucose 6-phosphate dehydrogenase (ec 1.1.1.49) under conditions of complete cell breakage fall 10-20-fold during a 3h period of spore germination and outgrowth. the spores must germinate (lose refractility), but do not have to undergo outgrowth, for the loss of activity to occur. glucose 6-phosphate dehydrogenase activity from cells as any stage of development is completely stable in extracts at 4 degrees c or 30 degrees c. all of the enzyme activity ...	1975	168884
inhibition of glucose 6-phosphatase by pure and impure c-type phospholipases. reactivation by phospholipid dispersions and protection by serum albumin.	1. pure or impure c-type phospholipases hydrolysed rat liver microsomal phosphatides in situ at 5 degrees or 37 degrees c. at 5 degrees c mean hydrolysis of total phospholipids was 90% by bacillus cereus and 75% by clostridium perfringens (clostridium welchii) c-type phospholipases. 2. four degrees of inhibition of glucose 6-phosphatase (d-glucose 6-phosphate phosphohydrolase; ec 3.1.3.9) resulted. (a) at 37 degrees c inhibition was virtually complete and apparently irreversible. (b) at 5 degree ...	1975	168886
inhibition of clostridium botulinum by strains of clostridium perfringens isolated from soil.	thirty-one soil samples were examined for the presence of organisms capable of inhibiting growth and toxin production of strains of clostridium botulinum type a. such organisms were found in eight samples of soil. inhibiting strains of c. perfringens were found in five samples, of c. sporogenes in three and of bacillus cereus in three. three of the c. perfringens strains produced an inhibitor effective on all 11 strains of c. botulinum type a against which they were tested, seven of eight proteo ...	1975	169734
organization of phospholipids in human red cell membranes as detected by the action of various purified phospholipases.	1. the action of eight purified phospholipases on intact human erythrocytes has been investigated. four enzymes, e.g. phospholipases a2 from pancreas and crotalus adamanteus, phospholipase c from bacillus cereus, and phospholipase d from cabbage produce neither haemolysis nor hydrolysis of phospholipids in intact cells. on the other hand, both phospholipases a2 from bee venom and naja naja cause a non-haemolytic breakdown of more than 50% of the lecithin, while sphingomyelinase c from staphyloco ...	1975	169915
bacterial food-poisoning.		1975	173111
[change in the activity of the enzymatic systems of bacillus anthracoides spores during germination and under the action of ca hypochlorite].	the activity of the enzymes of the citric acid cycle, glycolysis, and hexose monophosphate pathway was studied during germination of the spores of bacillus anthracoides and upon their treatment with calcium hypochlorite. no activity of isocitrate dehydrogenase and glucose-6-phosphate dehydrogenase was found in the extracts of the vegetative cells, contrary to the spores and initiated spores. the activity of other enzymes changes but slightly in the course of germination of the spores. treatment ...	1975	173977
studies on a thermophilic rna polymerase which is active only on poly d(a-t) and poly dadt.	two types of rna polymerases [ec 2.7.7.6], polymerases a and b, exist in thermophilic bacteria, thermus thermophilus hb8. polymerase b is apparently like the core enzyme of polymerase a but is active only when an alternating copolymer of deoxyadenylic and deoxythymidylic acids (poly d(a-t)) or a mixture of homopolymers of deoxyadenylic acid and deoxythymidylic acid (poly dadt) is used as a template. polymerase b was further characterized to elucidate its relation to polymerase a and to determine ...	1975	175054
[hygienic evaluation of the finding of the causative agents of food poisoning in food products].		1975	180687
effect of ph and sodium chloride on growth of bacillus cereus in laboratory media and certain foods.	the effects of nacl concentration, ph, and water activity (aw) on the ability of vegetative cells of bacillus cereus to initiate aerobic growth in brain heart infusion broth at 30 c were studied in a factorial design experiment. by using multiple regression techniques, equations were derived which related the decimal reduction of the bacterial population to the concentration of nacl and ph of broth to which the population was exposed. from these equations, the percentage of inoculated cells capa ...	1975	234158
analysis of bacterial biotin-proteins.	the biotin-protein populations in several bacterial strains were analyzed by solubilization of [3h]biotin-labeled cells with sodium dodecylsulfate followed by electrophoresis on polyacrylamide gels containing the detergent. a variety of patterns of biotin-labeled polypeptide chains was seen, ranging from a single biotin-protein in escherichia coli, corresponding to the biotin carboxyl carrier protein component of acetyl-coa carboxylase, to multiple species in enterobacter aerogenes, pseudomonas ...	1975	235315
isolation of two new related peptide antibiotics, cerexins a and b (studies on antibiotics from the genus bacillus. i).	two new antibiotics cerexins a and b were isolated from different strains identified with bacillus cereus. these two antibiotics are amphoteric in nature, soluble in particular solvents such as dimethylsulfoxide, dimethylformamide and alkaline water, and show typical infrared absorptions of peptide. these also have similar antimicrobial properties active against gram-postive bacteria.	1975	236271
the influence of growth and sporulation temperature on heat resistance of a bacterial nucleosidase.		1975	236744
inositol cyclis phosphate as a product of phosphatidylinositol breakdown by phospholipase c (bacillus cereus).		1975	236918
effect of ph on sporulation of bacillus stearothermophilus.	an improved broth medium was developed for high growth yields of bacillus subtilis var. niger ncib 8649, bacillus cereus ncib 9373, and bacillus stearothermophilus ncib 8919 and atcc 7953. sporulation was abundant (1.1 times 10-8 b. subtilis var. niger and 9.2 times 10-7 b. cereus per ml) at an initial ph of 7.0. sporulation of both strains of b. stearothermophilus took place (1.9 times 10-7 and 2.4 times 10-7/ml, respectively) in this medium when initial ph values of 7.7 to 8.7 were used.	1975	238470
[formation by bacteria of the genus bacillus of coagulases that coagulate plasma].		1975	240446
biological characteristics of an enterotoxin produced by bacillus cereus.	an enterotoxin synthesized during exponential growth by bacillus cereus produces fluid accumulation in rabbit ileal loops, alters vascular permeability in the skin of rabbits, and kills mice when injected intravenously. all activities are eluted simultaneously from a sephadex g-75 column and are distinct from the hemolysin and egg yolk turbidity factor of b. cereus. the enterotoxin is a true exotoxin. it interacts with intestinal receptor sites in a highly transient manner in the ileal loop syst ...	1975	240499
[report of "lethal factor" synthetized by bacillus cereus (author's transl)].	bacillus cereus growing in nutrition broth produces during logarithmic growth and in stationary phase a lethal factor extremely toxic for rodents. this toxin is only produced in the presence of oxygen and depends on bacterial replication. the highest titers of toxin are obtained using bacteria in a concentration of 10(7) to 10(9) per ml of nutrition broth. during regression phase of bacillus cereus the titer of toxin declines to zero. toxicity of the lethal factor becomes not altered in an alcal ...	1975	242167
production and property of beta-lactamases in streptomyces.	the production of beta-lactamases by 100 strains of streptomyces was studied. about one-half of the strains produced more than 2.3 u of beta-lactamase per ml, and another half produced less than 1.4 u/ml. the amounts of beta-lactamases produced by two strains were in the order of those produced by bacillus cereus 569/h and bacillus licheniformis 749/c. these streptomyces enzymes function primarily as penicillinases rather than cephalosporinases. properties such as ph optimum, substrate specifici ...	1975	242252
a direct spectrophotometric assay and determination of michaelis constants for the beta-lactamase reaction.		1975	803320
biphasic kinetics induced by modified substrates of penicillinase.		1975	803369
cytochrome pigments in spores of bacillus cereus t.	absorption spectra of dormant spores of bacillus cereus t suspended in glycerol showed peaks characteristic of cytochrome pigments.	1975	803489
use of the aggregate-hemagglutination technique for determining exo-enterotoxin of bacillus cereus.	the possibility of using the aggregate-hemagglutination technique for detection of bacillus cereus exo-enterotoxin in foodstuffs and culture media is shown. a 0.004-mug quantity of enterotoxin per ml can be detected by this method.	1975	803816
diol lipids of rat liver. quantitation and structural characteristics of neutral lipids and phospholipids derived from ethanediol, propanediols, and butanediols.	specific enzymatic and chemical degradation of neutral lipid and phospholipid fractions from rat liver revealed the presence of novel types of lipid metabolites bearing a short-chain diol backbone. diol-derived lecithin and cephalin analogs were readily cleaved by phospholipase c (ec 3.1.4.3) from bacillus cereus, although the cephalin analogs required "carrier" lecithin to sustain hydrolysis. the products of phosphilipase hydrolyses as well as the neutral lipid fractions were subjected to alkal ...	1975	803840
[frequencies of purine oligonucleotide occurrence in 16s and 23s ribosomal rna in bacillus cereus, bac. subtilis and bac. coagulans].		1975	803844
ultrastructural and chemical changes in spores of bacillus cereus after action of disinfectants.		1975	803940
degradation of phospholipid and release of diglyceride-rich membrane vesicles during protoplast formation in certain gram-positive bacteria.	membrane phospholipid was found to be hydrolyzed presumably by an intracellular phospholipase c, and diglyceride-rich membrane vesicles were released from the cells during protoplast formation in bacillus cereus bacillus subtilis, micrococcus lysodeikticus, and staphylococcus aureus. the released membranes consisted mainly of small vesicles of 50 to 100 nm in diameter. they have a lower density than that of protoplast membranes in all the bacteria tested in the present study.	1975	803959
production of verbenol pheromone by a bacterium isolated from bark beetles.		1975	804144
the parenteral application of a new metacycline preparation, tri-metacycline.	tri-metacycline, one of the new tetracycline complexes (tritetracyclines), is prepared by mere dissolution of metacycline hydrochloride in an aqueous solution of the complexing agent. in vitro and in vivo studies show a high antibiotic activity. significantly lower mic values were found for tri-metacycline than for the parent compound. parenteral administration resulted in high sera and tissue values, without signs of accumulation; excretion via the kidneys was proved.	1975	804312
characteristics of a bacillus megaterium bacteriophage.	a bacteriophage which infects and lyses bacillus megaterium atcc 19213 was isolated from the soil. the phage produces lysis on nine strains of b, megaterium tested but did not lyse a bacillus cereus or bacillus licheniformis strain, nor any of eight bacillus subtilis strains tested. physical characteristics of the phage including morphology, size, thermal and ph stability, and buoyant density were examined. the nucleic acid is double-stranded dna of mol. wt. 41.7 times 10 and 36 to 38.5 mol perc ...	1975	804535
synthesis and properties of phosphatidyl carnitine and phosphatidyl beta-methylcholine.	rac-phosphatidyl carnitine and rac-phosphatidyl beta-methylcholine were synthesized by direct condensation of phosphatidic acid and the appropriate alcohols in the presence of 2,4,6-triiso-propylbenzenesulphonylchloride and pyridine. tetraphenylborates of the quarternary ammonium compounds beta-methylcholine and carnitine benzyl ester were shown to be particularly convenient for synthesis in homogeneous phase. physical and chemical properties of the two phosphoglycerolipids and some intermediate ...	1975	804579
[pharmacokinetics after oral and intravenous administration of tetracycline compounds (author's transl)].		1975	804588
effects of cadmium on the growth and uptake of cadmium by microorganisms.	six species of microorganisms, escherichia coli, bacillus cereus, lactobacillus acidophilus, staphylococcus aureus, streptococcus faecalis and actinomyces niger, were grown under suitable conditions in appropriate media. cadmium chloride was added to provide 0, 5, 10, 20, 40, and 80 mug of cd per ml. at 40 and 80 mug of cd per ml, e. coli and b. cereus grew well and the other species were repressed. cd uptake patterns differed significantly among the species tested. the significance of these dat ...	1975	804857
the reaction of myelin phospholipids with phospholipase c and d.		1975	804860
antimetabolites produced by microorganisms. xii (s)-alanyl-3-[alpha-(s)-chloro-3-(s)-hydroxy 2-oxo-3-azetidinylmethyl]-(s)-alanine, a new beta-lactam containing natural product.	(s)-alanyl-3-[alpha-(s)-chloro-3-(s)-hydroxy-2-oxo-3-azetidinylmethyl]-(s)-alanine was isolated from a fermentation broth of an unidentified streptomyces species 372 a. the structure was determined by single crystal x-ray diffraction analysis. the substance inhibits the growth of several strains of gram-positive and gram-negative bacteria in a chemically defined medium but growth inhibition is relieved by addition of l-glutamine to the medium.	1975	805110
chemical characterization of new antibiotics, cerexins a and b. (studies on antibiotics from the genus bacillus. ii)	acid hydrolysis revealed that the antibiotic cerexin a is constructed with aspartic acid (3), threonine (1), serine (1), valine (2), allo-isoleucine (1), gamma-hydroxylysine (1), tryptophan (1), and a variety of fatty acid residues. the essential difference between cerexins a and b is concluded to be replacement of serine and one valine residue in cerexin a by glycine and phenylalanine in cerexin b. isolation of a new amino acid l-threo-gamma-hydroxylysine is also described.	1975	805113
antibiotics from mycoplasma. ii. characterization of antibiotics produced by mycoplasma sp. rpiii.		1975	805114
the diumycin complex. comparative studies on antibiotics from diumycin-and macarbomycin-fermentations.	six phosphorus-containing antibiotics were isolated from both diumycin and macarbomycin fermentation products. on the basis of their chromatographic behavior and of their physico-chemical and microbiological properties it can be assumed that not only the main component but also the five minor components are the same in both antibiotic complexes. a comparison of the six components with the known classifications of diumycins and macarbomycins was made.	1975	805117
eimeria tenella in gnotobiotic chickens: hematocrit, weight change, cecal pathology, and mortality.	on days 5 to 8 after oral inoculation with 200,000 eimeria tenella oocysts, the mean hematocrits of bacteria-free, bacillus cereus-monoflora and conventional chickens were equally reduced below control values. weight loss was first observed in bacteria-free and monoflora fowl between days 4 and 5 after e. tenella inoculation, whereas conventional fowl initially displayed weight loss between days 3 and 4. gross cecal lesion scores and total mortality of 4 experiments were not significantly differ ...	1975	805225
purification by affinity chromatography of phospholipase c from bacillus cereus.		1975	805713
spores of microorganisms. xxvi. synthetic activities of germinating spores of bacillus cereus prevented from outgrowth.	spores of bacillus cereus were germinated in a germination limited medium (gl-medium) which facilitates only germination but not the postgerminative development of spores. under these conditions a limited protein synthesis occurs. however, this protein synthesis is stopped after a short time interval. the rate of synthesis of new proteins, as well as their total amount, is influenced by the length of the activation heat shock. synthesis of the wall material continues for several hours and thick- ...	1975	806504
evaluation of two simple assay methods for detecting antibiotic residues in chicken and pig muscle.		1975	806569