[Supplement No XXIII (1979) to Kauffmann-White scheme (author's transl)].

In this supplement are given the characters of 31 new Salmonella serotypes recognized in 1979 by WHO collaborating Centre for reference and research on Salmonella: 16 belong to the sub-genus I, 10 to the sub-genus II, 4 to the sub-genus III and 1 to the sub-genus IV. Two new H factors, Z64 and Z65, are recognized.

Proton magnetic resonance study of the histidines in hemerythrin and chemical identification of the nonligand histidines.

Three non-iron-liganded histidines have been studied in methemerythrin azide monomers from Pascolopsis gouldii by 250-MHz proton correlation nuclear magnetic resonance (NMR) spectroscopy. Four of the seven histidines in the protein are not observed because of paramagnetic broadening by the coordinated iron; neither are they observed as contact or pseudocontact shifted resonances. The NMR titration of the three free histidines establishes them as normal histidines with pK' values of 7.

[Interest of gamma-glutamyltransferase in "Enterobacteriaceae" (author's transl)].

Gamma-Glutamyltransferase (gammaGT) could be detected in 86,6% of 3,027 strains of Enterobacteriaceae, by the use of gamma-L-glutamin-p-nitranilide acid for substrate. The following species produced gamma GT: Citrobacter freundii, Levinea malonatica, L. amalonatica, Klebsiella pneumoniae, K.

[Diagnostic value of the acid production from galacturonate to differentiate strains of "Salmonella" sub-genus I and monophasic sub-genus III from the other "Salmonella" strains belonging to sub-genera II, diphasic III, IV, "Citrobacter" and "Hafnia alvei" (author's transl)].

Two methods were compared: (1) the ability to use sodium glacturonate as source of carbon and energy in defined medium; (2) the ability to produce acid by fermentation of this substrate in peptone water with phenol red. Results of growth on, acid formation from, galacturonate are identical. Salmonella strains of sub-genus I and monophasic serotypes of sub-genus III do not use galacturonate.

[Supplement No XXII (1978) to Kauffmann-White scheme (author's transl)].

In this supplement are given the characters of 40 new Salmonella serotypes recognized in 1978 by WHO collaborating Centre for reference and research on Salmonella: 29 belong to the sub-genus I, 3 to the sub-genus II and 8 to the sub-genus III. Biochemical and antigenic variants of already known serotypes are described. A new H factor (Z63) is recognized.

[Tetrathionate reductase, beta-glucuronidase, and ONPG-test in the genus Salmonella (author's transl)].

Tetrathionate reduction can be detected simply by acid production. Some commonly occuring Salmonella serotypes can be subdivided into biotypes by the tetrathionate reductase test. The enzyme beta-glucuronidase can be detected using p-nitro-phenyl-beta-D-glucuronide as substrate.

Common enterobacterial antigen and ONPG test in the taxonomy of the genus Yersinia.

The detection of the common enterobacterial antigen (Kunin) in strains of Y. pestis, Y. pseudotuberculosis and Y.

Increased tyrosine phenol-lyase activity in mice following pyridoxal phosphate administration.

A limiting factor in the depletion of plasma tyrosine following tyrosine phenol-lyase injection into normal mice was found to be the availability of an essential cofactor, pyridoxal phosphate. Because of the extremely short half-life of this cofactor, adequate elevation of circulating cofactor levels for prolonged periods by injection of a pyridoxal phosphate solution was not practical. Similarly, long-term diets enriched with pyridoxine and pyridoxal phosphate did not significantly improve the efficiency of the injected holoenzyme.

[Correlation between beta-glucuronidase activity and serotype in the genus "Salmonella" (author's transl)].

Out of 4,114 cultures of Salmonella belonging to various serotypes, 1,241 (30,1%) hydrolyze p-nitrophenyl-beta-D-glucuronide, the chromogenic substrate of beta-glucuronidase. Serotypes are found to be homogenous with respect to beta-glucuronidase activity. The qualitative test, as simple as the ONPG test, may be of diagnostic value to assign a strain to a serotype in case of a monophasic or not motile variant of a normally diphasic serotype.

[Origin and frequency of the serotypes of Salmonella received in the French national center during the years 1973--1976 (author's transl)].

38,343 strains of Salmonella (34,138 isolated in Metropolitan France) were examined at the national Salmonella Centre (Pasteur Institute, Paris), during the years 1973 to 1976. The origins are scheduled in this report according to the serotypes classified in alphabetical order with O groups of Kauffmann-White schema. Incidence of II and IV subgenera is low.

[Supplement No XX to Kauffmann-White scheme (author's transl)].

In that supplement are given the characters of new Salmonella serotypes recognized in 1976 by WHO collaborating Centre for reference and research on Salmonella. Nineteen belong to the sub-genus I, 10 to the sub-genus II, 11 to the sub-genus III. Biochemical and antigenic variants of already known serotypes are described.

[Supplément No XIX to Kauffmann-White scheme (author's transl)].

In that supplement are given the characters of new Salmonella serotypes recognized in 1975 by WHO collaborating Centre for reference and research on Salmonella. Twenty-six belong to the sub-genus I, 10 to the sub-genus II, 9 to the sub-genus III and 1 to the sub-genus IV. A new H antigen phase 1(g,Z62) has been approved.

[Compatibility groups of metabolic plasmids (author's transl)].

The compatibility groups of eleven plasmids determining metabolic characters used in taxonomy and isolated from naturally-occurring strains were examined. Seven of these plasmids determined lactose fermentation. Two were fi+: one of these belonged to group FI and the other to a novel group.

Polynucleotide sequence divergence among strains of Salmonella sub-genus IV and closely related organisms.

Polynucleotide sequence relatedness studies were carried out to determine the extent of divergence present in Salmonella sub-genus IV strains, related strains of Salmonella of other sub-genera and the Citrobacter genus. Salmonella sub-genus IV were 91-97% related. The Salmonella of sub-genus I, II and III showed lower binding (79-87%) to Salmonella sub-genus IV.

[Plasmid determined lactose positive character in (Enterobacter hafniae) and (Proteus morganii) (author's transl)].

The atypical lactose positive characters have been found to be plasmidmediated in 6 strains of Enterobacter hafniae and 2 strains of Proteus morganii. One of the P. morganii plasmid possesses the fi+ character, all the other plasmids belonging to the fi-group.