Transfer of Corynebacterium pyogenes (Glage) Eberson to the Genus Actinomyces as Actinomyces pyogenes (Glage) comb. nov

Reddy, C. A.; Cornell, C P; Fraga, A M

doi:10.1099/00207713-32-4-419

Cited by 64 publications

(27 citation statements)

References 28 publications

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“…2). Actinomyces pyogenes, which was previously classified in the genus Coiynebacterium (44), is also an important verterinary pathogen. Corynebacterium glutamicum, which was previously classified in the genus Micrococcus, is an important organism in the glutamic acid fermentation industry.…”

Section: Discussionmentioning

confidence: 99%

Phylogenetic Analysis of Mycolic Acid-Containing Wall-Chemotype IV Actinomycetes and Allied Taxa by Partial Sequencing of Ribosomal Protein AT-L30

Ochi

1995

International Journal of Systematic Bacteriology

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The phylogenetic relationships among 30 mycolic acid-containing wall chemotype IV actinomycete strains and 12 strains belonging to allied taxa were examined by determining the amino acid sequences of the ribosomal AT-L30 proteins of these organisms. Sequencing 20 N-terminal amino acids of AT-L30 preparations revealed that the members of the genera containing mycolic acid-containing actinomycetes form two clusters; the first cluster contains the genera Nocardia, Rhodococcus, Gordona, and Tsukamurella, and the second cluster contains the genera Corynebacterium and Mycobacterium. The genus Nocardia was placed in a clade containing the genus Rhodococcus. The data showed that Tsukamurella paurometabolum is closely related phylogenetically to the genus Gordona. The phylogenetic clusters identified were entirely consistent with the proposal of Goodfellow that the family Nocardiaceae should encompass the mycolate-containing, cell wall type IV actinomycete genera Nocardia, Rhodococcus, Gordona, and Tsukamurella. The genera Actinomyces and Micrococcus exhibited AT-UO amino acid sequence characteristics intermediate between those of actinomycetes and those of typical eubacteria. The genera Nocardia, Gordona, Mycobacterium, Actinoplanes, and Micromonospora were each a taxon that consisted of phylogenetically coherent species. In contrast, the genera Rhodococcus and Corynebacterium are taxa that consist of phylogenetically distantly related species. In general, my results are consistent with previous 16s rRNA sequencing results, but significant differences were also found. My data, together with previous AT-L30 sequencing data, show that phylogenetic relationships among taxa can be determined by using markers other than the ribosomal gene sequences.Microorganisms containing mycolic acids in their cell walls have many properties in common (13) and form a recognizable suprageneric group (28,49,52). These organisms have chemotype IV walls (26) and can be assigned to the genera Coiynebacterium, Gordona, Mycobacterium, Nocardia , Rhodococcus, and Tsukamurella by using a combination of chemical and morphological markers (12). Nocardiae produce abundant or sparse aerial mycelia, but corynebacteria do not produce mycelia. Mycobacteria and rhodococci do not usually form aerial hyphae, with a few exceptions. The taxonomy of the actinomycetes containing mycolic acids has undergone significant revisions based on data obtained by chemical, numerical, and molecular systematic methods; such revisions have occurred in the genera Rhodococcus (11-13, 15), Corynebacterium (27), Gordona (51), Tsukamurella (4), and Mycobacterium (17,18,46,60). The genus Nocardia is the type genus of the family Nocardiaceae. The genus Gordona is characterized by the absence of mycelia and slight or strong acid fastness, and members of this genus have characteristics intermediate between those of the genus Nocardia and those of the genus Mycobactenurn (54). The taxonomy of the genus Gordona and the related genus Tsukamurella has been clarified by using chemical, m...

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Section: Discussionmentioning

confidence: 99%

Phylogenetic Analysis of Mycolic Acid-Containing Wall-Chemotype IV Actinomycetes and Allied Taxa by Partial Sequencing of Ribosomal Protein AT-L30

Ochi

1995

International Journal of Systematic Bacteriology

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“…Cell pellets were suspended in breakage buffer (50 mM Tris hydrochloride, 20 mM MgCl2, 50 mM KCI, 5 mM mercaptoethanol, pH 7.5) and broken by sonication in the presence of glass beads in an ultrasonic cleaner (Branson 1200). After centrifugation at 16,500x g for 30 min, the supernatant was layered on sucrose step gradients (5,30, 50% in breakage buffer) and centrifuged for 3.5 h at 285,OOOx g (Beckman SW40.1). The gradients were fractionated, and the ribosome fraction was identified spectrophotometrically (peak A260).…”

Section: * Corresponding Authormentioning

confidence: 99%

The division between fast- and slow-growing species corresponds to natural relationships among the mycobacteria

1990

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Comparative 16S rRNA sequencing was used to infer the phylogenetic relationships among selected species of mycobacteria and related organisms. The phylogeny inferred reflects the traditional classification, with major branches of the phylogenetic tree in general correspondence to the four Runyon groups and with numerical classification analyses. All the mycobacterial species compared, with the exception of M. chitae, are closely related (average similarity values greater than 95%). The slow growers form a coherent line of descent, distinct from the rapid growers, within which the overt pathogens are clustered. The distant relationship between M. chitae and the remaining mycobacteria suggests that this organism is incorrectly classified with the mycobacteria. M. paratuberculosis 18 was indistinguishable from M. avium-M. intracelulare-M. scrofulaceum serovar 1 by this analysis.

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“…Trueperella pyogenes is a gram positive, pleomorphic and facultative anaerobe reported to cause suupurative and pyogenic infections (Brinton et al, 1993;Reddy et al, 1982). The characterization of the isolate by its cultural, growth and biochemical characteristics confirmed the organism as A. pyogenes.…”

Section: Discussionmentioning

confidence: 94%

A Unique Case of Trueperella Pyogenes Causing Hepatic Abscesses in Pigeons

Priya¹,

Gontu²,

Ambily³

et al. 2013

IJVMR

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Transfer of Corynebacterium pyogenes (Glage) Eberson to the Genus Actinomyces as Actinomyces pyogenes (Glage) comb. nov

Cited by 64 publications

References 28 publications

Phylogenetic Analysis of Mycolic Acid-Containing Wall-Chemotype IV Actinomycetes and Allied Taxa by Partial Sequencing of Ribosomal Protein AT-L30

Phylogenetic Analysis of Mycolic Acid-Containing Wall-Chemotype IV Actinomycetes and Allied Taxa by Partial Sequencing of Ribosomal Protein AT-L30

The division between fast- and slow-growing species corresponds to natural relationships among the mycobacteria

A Unique Case of Trueperella Pyogenes Causing Hepatic Abscesses in Pigeons

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