ZfN: Search Results

1	Author	H. Arald, A. B. Linke	Requires cookie*
	Title	Growth Inhibition of Glucose-Grown Cariogenic and Other Streptococci by Saccharin in vitro
	Abstract	Sodium saccharin in concentrations from 0.02 to 20.00 m g/m l inhibits the in vitro growth of glucose-grown cariogenic and other streptococci, and suppresses, esp. at the higher concentration range, the ferm entative acid production of these m icroorganism s to acid levels much lower than the critical pH of 5.5. These observations indicate a possible caries antagonism by saccharin.
	Reference	(Z. Naturforsch. 32c, 839 [1977]; received May 9 1977)
	Published	1977
	Keywords	Streptococcus m utans, Saccharin, Caries, Sweeteners, Streptococci
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	TEI-XML for	default:Reihe_C/32/ZNC-1977-32c-0839.pdf
	Identifier	ZNC-1977-32c-0839
	Volume	32

2	Author	Akira Taketo, Yoriko Taketo	Requires cookie*
	Title	Effects of Membrane-Acting Drugs and Aerobiosis on Production of Streptolysin S and Nuclease in Hemolytic Streptococci
	Abstract	Yield of streptolysin S (SLS) in streptococcal culture was considerably reduced by procaine, dibucaine, atropine or chlorpromazine at concentrations which scarecely affected production of an extracellular nuclease as well as the bacterial growth. Cerulenin was also inhibitory to SLS formation, but its effect was more pronounced on the nuclease production. By aerobiosis, amount of SLS produced into culture supernatant was increased significantly, whereas yield of the nuclease was rather unaffected.
	Reference	Z. Naturforsch. 39c, 1128—1131 (1984); received August 14 1984
	Published	1984
	Keywords	Streptolysin S, Nuclease, Membrane, Aerobiosis, Streptococci
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	TEI-XML for	default:Reihe_C/39/ZNC-1984-39c-1128.pdf
	Identifier	ZNC-1984-39c-1128
	Volume	39

3	Author	Akira Taketo, Yoriko Taketo	Requires cookie*
	Title	Enhanced Production of Cell-Bound and Extracellular Streptolysin S by Hemolytic Streptococci Pretreated with Proteases
	Abstract	The amount o f streptolysin S produced by resting streptococci was considerably increased after incubation o f the washed bacteria with trypsin or pronase. Production o f both cell-bound and free forms o f the toxin was enhanced by the protease treatment. By addition o f trypsin, streptolysin S yield was considerably increased in growing culture as well. Treatment with lysozyme was ineffective, and the toxin production was only slightly prom oted by preincubation with hyaluronidase or Chymotrypsin. In contrast, pretreatment with chymotrypsin caused in creased production o f an extracellular nuclease, whereas the yield o f this enzyme was reduced after incubation o f the cocci with pronase. Evidence was obtained indicating de novo synthesis o f the exotoxin in the protease-treated bacteria.
	Reference	Z. Naturforsch. 40c, 166 (1985); received N ovem ber 22 1984
	Published	1985
	Keywords	Streptolysin S, Cell-Bound Hemolysin, Protease, Streptococci
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	TEI-XML for	default:Reihe_C/40/ZNC-1985-40c-0166.pdf
	Identifier	ZNC-1985-40c-0166
	Volume	40