Reassignment of Enterobacter dissolvens to Enterobacter cloacae as E. cloacae subspecies dissolvens comb. nov. and emended description of Enterobacter asburiae and Enterobacter kobei

Hoffmann, Harald; Stindl, Sibylle; Ludwig, Wolfgang; Stumpf, Alexia; Mehlen, André; Heesemann, Jürgen; Monget, D.; Schleifer, Karl Heinz; Roggenkamp, Andreas

doi:10.1016/j.syapm.2004.12.010

Cited by 95 publications

(45 citation statements)

References 16 publications

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“…dissolvens), formerly part of the genus Erwinia, was reassigned to the Enterobacter genus and forms a subspecies of the E. cloacae species. It is associated with plants (maize, coffee), but no human infections have been reported (7,9).…”

Section: Discussionmentioning

confidence: 99%

“…These microorganisms are saprophytic in the environment and commensal in the enteric flora since they are found in soil and sewage, as well as in the human gastrointestinal tract (17,22). The taxonomy of the Enterobacter genus has been iteratively updated (8)(9)(10)(11)(12)19). Several species are described in this taxon (Enterobacter aerogenes, E. amnigenus, E. cancerogenus, E. cowanii, E. gergoviae, E. intermedius, E. pyrinus), as is a genetic complex, referred to as the "E. cloacae complex," in which other species have been identified (E. asburiae, E. kobei, E. ludwigii, E. hormaechei, E. nimipressuralis, and E. cloacae).…”

mentioning

confidence: 99%

“…Sequence analysis of a fragment of the hsp60 gene showed that the E. cloacae nomenspecies could be divided into 12 genetic clusters (clusters I to XII) and one sequence crowd (sequence crowd xiii). Specific names could be attributed to some of the genetic clusters: E. asburiae (cluster I) (9), E. kobei (cluster II) (9), E. ludwigii (cluster V) (11), E. nimipressuralis (cluster X) (8), E. cloacae subsp. cloacae (cluster XI) (9), and E. cloacae subsp.…”

mentioning

confidence: 99%

“…Specific names could be attributed to some of the genetic clusters: E. asburiae (cluster I) (9), E. kobei (cluster II) (9), E. ludwigii (cluster V) (11), E. nimipressuralis (cluster X) (8), E. cloacae subsp. cloacae (cluster XI) (9), and E. cloacae subsp. dissolvens (cluster XII) (9).…”

mentioning

confidence: 99%

“…cloacae (cluster XI) (9), and E. cloacae subsp. dissolvens (cluster XII) (9). Although the name E. hormaechei was sometimes used as a generic name for strains belonging to different hsp60 gene sequencing-based clusters (20), clusters VI, VII, and VIII together formally constitute the E. hormaechei species, which has three subspecies: E. hormaechei subsp.…”

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confidence: 99%

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Specific Distribution within the Enterobacter cloacae Complex of Strains Isolated from Infected Orthopedic Implants

et al. 2009

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Bacteria belonging to the Enterobacter genus are frequently isolated from clinical samples but are unusual causative agents of orthopedic implant infections. Twelve genetic clusters (clusters I to XII) and one sequence crowd (sequence crowd xiii) can be distinguished within the Enterobacter cloacae nomenspecies on the basis of hsp60 sequence analysis, and until now, none of these clusters could be specifically associated with a disease. In order to investigate if specific genetic clusters would be involved in infections of orthopedic material, two series of bacterial clinical isolates identified as E. cloacae by routine phenotypic identification methods were collected either from infected orthopedic implants (n ‫؍‬ 21) or from randomly selected samples of diverse anatomical origins (control; n ‫؍‬ 52). Analysis of the hsp60 gene showed that genetic clusters III, VI, and VIII were the most frequent genetic clusters detected in the control group, whereas cluster III was poorly represented among the orthopedic implant isolates (P ‫؍‬ 0.006). On the other hand, E. hormaechei (clusters VI and VIII), but not cluster III, is predominantly associated with infections of orthopedic implants and, more specifically, with infected material in the hip (P ‫؍‬ 0.019). These results support the hypothesis that, among the isolates within the E. cloacae complex, E. hormaechei and hsp60 gene sequencing-based cluster III are involved in pathogenesis in different ways and highlight the need for more accurate routine Enterobacter identification methods.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Specific Distribution within the Enterobacter cloacae Complex of Strains Isolated from Infected Orthopedic Implants

et al. 2009

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Enterobacter

Coutinho,

de Maayer,

Jordan

et al. 2024

Bergey's Manual of Systematics of Archaea and Bacteria

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En.te.ro.bac'ter. Gr. neut. n. enteron , intestine; N.L. masc. n. bacter , a small rod; N.L. masc. n. Enterobacter , intestinal small rod. Pseudomonadota / Gammaproteobacteria / Enterobacterales / Enterobacteriaceae / Enterobacter Cells of the genus Enterobacter are Gram‐stain‐negative, straight rods (0.3–2.0 μm × 1.8–5.0 μm), and the majority are motile with peritrichous flagella. The optimal growth temperature is 30°C, with clinical strains growing at 37°C. They are facultatively anaerobic, ferment glucose with the production of acid and gas, and reduce nitrate to nitrite. The majority of strains are positive for Voges–Proskauer, arginine dihydrolase, and ornithine decarboxylase and negative for indole, lysine decarboxylase, and H 2 S production. The major fatty acids are C 16:0 , C 18:1 ω7 c , C 17:0 cyclo, and summed feature 2 (iso‐C 16:1 and/or C 14:0 3‐OH). The fatty acids C 13:0 and summed feature 1 (C 15:1 iso H and/or C 13:0 3‐OH) are generally present in low amounts (minimum 1.4 and 1.6% of the total amount, respectively). Genome‐based phylogenetic analyses separate the majority of species of this genus; the exception is Enterobacter siamensis for which no genome sequence is available. They are widely distributed in nature, occurring in clinical, terrestrial, and aquatic environments. DNA G + C content (mol%) : 52–58.5 ( T m ). Type species : Enterobacter cloacae AL .

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Lelliottia

Brady

2024

Bergey's Manual of Systematics of Archaea and Bacteria

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Lel.li.ot'ti.a. N.L. fem. n. Lelliottia , named after R.A. Lelliott for his contributions to the understanding of bacterial plant diseases. Pseudomonadota / Gammaproteobacteria / Enterobacterales / Enterobacteriaceae / Lelliottia The genus Lelliottia includes species regularly isolated from water, soil, spoiled fruit and vegetables, elm trees suffering from “wetwood” disease, and also from clinical samples. Cells are Gram‐stain‐negative, facultatively anaerobic, motile rods. Species are mesophilic, favoring growth temperatures of 30–35°C. Carbon sources such as glucose, cellobiose, fructose, galactose, maltose, mannose, N ‐acetylglucosamine, and N ‐acetylgalactosamine are readily assimilated. Species form a monophyletic clade when phylogenetic analysis is based on multilocus sequence analysis (MLSA) or whole‐genome sequences. The major fatty acids are C 16:0 , C 17:0 cyclo, C 18:1 ω7 c , and summed features 2 (iso‐C 16:1 and/or C 14:0 3‐OH) and 3 (C 16:1 ω7 c and/or iso‐C 15:0 2‐OH). DNA G + C content (mol%) : 52.8–56.0 (genome analysis). Type species : Lelliottia nimipressuralis Brady et al. 2013, VL154 (basonym: “ Erwinia nimipressuralis ” Carter 1945).

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Reassignment of Enterobacter dissolvens to Enterobacter cloacae as E. cloacae subspecies dissolvens comb. nov. and emended description of Enterobacter asburiae and Enterobacter kobei

Cited by 95 publications

References 16 publications

Specific Distribution within the Enterobacter cloacae Complex of Strains Isolated from Infected Orthopedic Implants

Specific Distribution within the Enterobacter cloacae Complex of Strains Isolated from Infected Orthopedic Implants

Enterobacter

Lelliottia

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