The Family Actinomycetaceae: The Genera Actinomyces, Actinobaculum, Arcanobacterium, Varibaculum, and Mobiluncus

Schaal, K. P.; Yassin, A. F.; Stackebrandt, Erko

doi:10.1007/0-387-30743-5_21

Cited by 38 publications

(39 citation statements)

References 549 publications

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“…Table 1. Differential characteristics of strain H5 T and related genera of the family Actinomycetaceae Genera: 1, Flaviflexus gen. nov. (strain H5 T ; data from this study); 2, Actinobaculum (Lawson et al, 1997); 3, Actinomyces (Schaal et al, 2006); 4, Arcanobacterium (Collins et al, 1982;Hall et al, 2003a;Lehnen et al, 2006;Yassin et al, 2011); 5, Mobiluncus (Spiegel & Roberts, 1984;Hoyles et al, 2004); 6, Trueperella (Yassin et al, 2011);7, Varibaculum (Hall et al, 2003b). +, Positive; 2, negative; V, variable; ND, no data available; A, aerobic; AN, anaerobic; F, facultatively anaerobic; DPG, diphosphatidylglycerol; PG, phosphatidylglycerol; PC, phosphatidylcholine; PI, phosphatidylinositol; PIM, phosphatidylinositol mannosides; PL, phospholipid; PGL, phosphoglycolipid; MK-n(H x ) represents a partially hydrogenated menaquinone with x hydrogen atoms on the side chain containing n isoprene units.…”

Section: Description Of Flaviflexus Huanghaiensis Sp Novmentioning

confidence: 71%

Flaviflexus huanghaiensis gen. nov., sp. nov., an actinobacterium of the family Actinomycetaceae

Miao

Lin

et al. 2013

International Journal of Systematic and Evolutionary Microbiology

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Flaviflexus huanghaiensis gen. nov., sp. nov., an actinobacterium of the family Actinomycetaceae Strain H5 T was isolated from a sediment sample collected from the coastal area of Qingdao, China. The cells were Gram-stain-positive, non-motile, straight or curved rods. The temperature range for growth was 20-37 6C and the pH for growth ranged from 6.5 to 9.0, with optimum growth occurring in the temperature range 28-30 6C and pH range 7.5-8.0. Growth occurred in the presence of 0-6 % (w/v) NaCl (optimum, 0-2 %). Strain H5 T had MK-9, MK-9(H 2 ) and MK-9(H 4 ) as the major menaquinones and C 18 : 1 v9c, C 16 : 0 , C 14 : 0 , C 18 : 0 and C 16 : 1 v9c as major fatty acids. The cell-wall peptidoglycan type was A5a L-Lys-L-Ala-L-Lys-D-Glu. The major polar lipids were phosphatidylglycerol (PG), an unknown phospholipid (PL1) and two unknown phosphoglycolipids (PGL1, PGL2). An unknown phospholipid (PL2) and two unknown glycolipids (GL1, GL2) were present in moderate to minor amounts in the polar lipid profile. The genomic DNA G+C content was 61.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain H5 T represents a novel lineage in the family Actinomycetaceae. On the basis of phenotypic, physiological and molecular characteristics, it is proposed that the novel isolate should be classified as a novel species in a new genus: Flaviflexus huanghaiensis gen. nov., sp. nov., with strain H5 T (5DSM 24315 T 5CICC 10486 T ) as the type strain of the type species.

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Section: Description Of Flaviflexus Huanghaiensis Sp Novmentioning

confidence: 71%

Flaviflexus huanghaiensis gen. nov., sp. nov., an actinobacterium of the family Actinomycetaceae

Miao

Lin

et al. 2013

International Journal of Systematic and Evolutionary Microbiology

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“…Present members of the genus Actinomyces appear to be heterogeneous with regard to their DNA mol% G?C content, amino acid composition of the cell wall peptidoglycan, cell wall sugars, menaquinone composition, and polar lipid profiles (Schaal et al 2006). Nevertheless, the genomic DNA G?C content of strain BL-79 T , 69.8 mol%, is within the range reported for species presently assigned to the genus Actinomyces (54-71 mol%) (Schaal et al 2006).…”

Section: Discussionmentioning

confidence: 99%

Actinomyces naturae sp. nov., the first Actinomyces sp. isolated from a non-human or animal source

Rao

Rash

Nobre

et al. 2011

Antonie van Leeuwenhoek

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Three facultatively anaerobic, Gram-positive staining, rod-shaped, non-spore forming, flagellated bacterial strains, BL-75, BL-79(T) and BL-104, were isolated from chlorinated solvent-contaminated groundwater. Phylogenetic analysis based on 16S rRNA gene sequence comparisons showed them to represent a distinct lineage within the genus Actinomyces with sequence identities in the range of <88-95.4% with previously described Actinomyces species. The strains were oxidase and catalase negative. Nitrate was not reduced. Esculin was hydrolyzed. Growth occurred in the temperature range of 20-43°C (optimum 30-37°C) and pH range 4.5-9.0 (optimum pH 6.5). Substrates supporting growth included various mono-, di-, and tri-saccharides. The end products of glucose fermentation were acetate, lactate, succinate and formate. Fermentative growth was observed in the presence of near saturation concentrations of perchloroethene (PCE) and toluene and in the presence of 1,2-dichloroethane and 1,1,2-trichloroethane at concentrations up to at least 24.4 mM and 11.2 mM, respectively. The dominant cellular fatty acids when grown in peptone/yeast extract/glucose (PYG) medium were C(18:1) ω9c, C(16:0), and C(14:0). The peptidoglycan was found to contain the amino acids alanine, glutamic acid, lysine, and ornithine at approximate molar ratios of 1.7 Ala: 2.3 Glu: 1.3 Lys: 1.0 Orn. The cell wall sugars were found to include rhamnose and mannose. The polar lipids were found to include diphosphatidylglycerol (DPG), phosphatidylglycerol (PG), phospholipid (PL), phosphoglycolipids (PGL), and glycolipids (GL). The main respiratory quinone of strain BL-79(T) was MK-9(H(4)), with minor components MK-10(H(4)) and MK-8(H(4)). The DNA mol% G+C content of the type strain is 69.8%. On the basis of phylogenetic and phenotypic characteristics, these strains could be differentiated from previously described species of the genus Actinomyces. Strains BL-75, BL-79(T) and BL-104 are designated as a novel species, for which the name Actinomyces naturae sp. nov. is proposed. This is the first Actinomyces species isolated from an environmental rather than human or animal sources. The type strain of Actinomyces naturae is BL-79(T) (= CCUG 56698(T) = NRRL B-24670(T)).

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“…A. naeslundii ile Actinomyces viscosus'un fizyolojik karakterlerinin ve antijenik yapılarının oldukça benzer olduğu (2) ve A. naeslundii'nin daha önce A. viscosus genotip 2 olarak isimlendirildiği belirtilmiştir (3). Bu fenotipik benzerlikten dolayı, A. viscosus ile A. naeslundii'nin sadece hücre duvarı yapısı, DNA baz kompozisyonu, DNA-DNA benzerliği, polipeptid molekül ağırlığı ve birkaç fizyolojik reaksiyondaki farklılığa göre ayrılabileceği ifade edilmiştir (2) A. viscosus köpek ve insanların oral kavitelerinde bulunan kommensal bir bakteri olmasına rağmen (4), enfeksiyonlara da yol açabildiği bildirilmiştir (2). İnsanlarda A. viscosus'un torakal enfeksiyonlardan, göğüs duvarındaki apselerden, meme, akciğer ve diğer iç organlardan, endokarditli hastaların kanlarından, diş plaklarından ve peridontal hastalıklardan izole edildiği (2), köpeklerde ise deri, subkutis ve toraksta granülamatöz apselere, atlarda kutanöz püstüllere, sığırlarda abortlara neden olduğu bildirilmiştir (4).…”

Section: Actinomycesunclassified

“…İnsanlarda A. viscosus'un torakal enfeksiyonlardan, göğüs duvarındaki apselerden, meme, akciğer ve diğer iç organlardan, endokarditli hastaların kanlarından, diş plaklarından ve peridontal hastalıklardan izole edildiği (2), köpeklerde ise deri, subkutis ve toraksta granülamatöz apselere, atlarda kutanöz püstüllere, sığırlarda abortlara neden olduğu bildirilmiştir (4). A. naeslundii'nin ise genellikle insanların ağız florasında bulunan saprofit bir bakteri olduğu, insanların tonsillerinden ve dişi genital sisteminden, neonatal maymunların ise ağız florasından izole edildiği belirtilmiştir (2).…”

Section: Actinomycesunclassified

“…(5) insanlarda A. naeslundii'yi kandan, apseden, servikofasiyal enfeksiyondan ve safra kesesindeki empiyemden izole ettiklerini bildirerek, A. naeslundii'nin insanlarda invaziv enfeksiyona sebep olabileceğini ileri sürmüştür. Ayrıca A. naeslundii'nin göz enfeksiyonlarından (2), rahim içi cihazlarla ilişkili olarak pelvik aktinomikozisinden (6), akciğer ve karaciğer enfeksiyonlarından (7), hidronefroz olgularından (8) ve diz ekleminde tekrarlayan enfeksiyondan izole edildiği de bildirilmiştir (2). Domuzlarda ise abort olgularında rapor edilmiştir (9 İnsanlardan rapor edilen A. naeslundii olgularında diğer iç organlarda da lezyonların bulunduğu bildirilmiştir (5,15).…”

Section: Actinomycesunclassified

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Bi̇r Kedi̇de Actinomyces Naeslundii Olgusu

Şababoğlu¹,

Yapıcıer²,

Çinar³

et al. 2016

Mehmet Akif Ersoy Üniversitesi Veteriner Fakültesi Dergisi

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ÖZETAnkara melezi, 4 yaşında dişi bir kedinin pelvis renalisinden intraoperatif yolla alınan sıvaptan Actinomyces naeslundii (A. naeslundii) izole ve identifiye edildi. İzole edilen bakterinin cins düzeyinde identifikasyonu için biyokimyasal testler, tür düzeyinde identifikasyonu için 16S rRNA dizi analizi yapıldı. A. naeslundii'nin antibiyotik duyarlılık testinde, amoksisilin, amoksisilin-klavulanik asit, ampisilin, eritromisin, florfenikol, kloramfenikol, penisilin, rifamisin, seftiofur, tetrasiklin ve vankomisine duyarlı, enrofloksasin, gentamisin, kanamisin ve oksasiline ise dirençli olduğu saptandı. Sonuç olarak saprofit bir bakteri olan A. naeslundii'nin kedilerde enfeksiyona yol açabileceği bu olgu sunumu ile ilk kez ortaya kondu.Anahtar kelimeler: A. naeslundii, kedi, pelvis renalis A Case of Actinomyces Naeslundii in a Cat ABSTRACT Actinomyces naeslundii (A. naeslundii) was isolated and identified from Ankara hybrid, four year old cat's swab that was taken from pelvis renalis by intraoperative way. For identification of the bacteria at the genus level was performed by biochemical tests and at the species level, 16S rRNA gene sequence analysis was performed. In the antimicrobial susceptibility test, the A. naeslundii isolate was found to be susceptible to amoxicillin, amoxicillin-clavulanic acid, ampicillin, ceftiofur, chloramphenicol, erythromycin, florfenicol, penicillin, rifamycin, tetracycline and vancomycin, and to be resistant to enrofloxacin, gentamicin, kanamycin and oxacillin. In conclusion, by this case report it was shown for the first time that A. naeslundii may cause an infection in cats.

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The Family Actinomycetaceae: The Genera Actinomyces, Actinobaculum, Arcanobacterium, Varibaculum, and Mobiluncus

Cited by 38 publications

References 549 publications

Flaviflexus huanghaiensis gen. nov., sp. nov., an actinobacterium of the family Actinomycetaceae

Flaviflexus huanghaiensis gen. nov., sp. nov., an actinobacterium of the family Actinomycetaceae

Actinomyces naturae sp. nov., the first Actinomyces sp. isolated from a non-human or animal source

Bi̇r Kedi̇de Actinomyces Naeslundii Olgusu

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