Eggerthella hongkongensis sp. nov. and eggerthella sinensis sp. nov., two novel Eggerthella species, account for half of the cases of Eggerthella bacteremia

Lau, Susanna K. P.; Woo, Patrick C. Y.; Woo, Gibson K. S.; Fung, Ami M. Y.; Wong, Michael; Chan, King-Man; Tam, Dorothy M. W.; Yuen, Kwok‐Yung

doi:10.1016/j.diagmicrobio.2004.04.012

Cited by 118 publications

(98 citation statements)

References 20 publications

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“…The failure to detect members of the genus Atopobium in this study is consistent with previous findings, corroborating the suggestion that the genus Atopobium is Bands corresponding to all members of the 'Atopobium cluster' which have previously been isolated from human faeces [namely, Collinsella, Cryptobacterium, Eggerthella, Gordonibacter and Olsenella (Kageyama & Benno, 2000;Lau et al, 2004a;Hoyles, 2009;Arumugam et al, 2011)], or seen in recent microarray data (Wang et al, 2004;Rajilić-Stojanović et al, 2009) were observed in DGGE profiles in this study. Wang et al (2004) P. hongkongensis has previously only been associated with bacteraemia (Lau et al, 2004a). However, it would appear that, similar to E. lenta, P. hongkongensis is an opportunistic pathogen of GI origin, being detected in the DGGE profiles of donors 8 and 10.…”

Section: Dgge Analysis Of the Faecal 'Atopobium Cluster' Populationsupporting

confidence: 81%

Dynamics and diversity of the ‘Atopobium cluster' in the human faecal microbiota, and phenotypic characterization of ‘Atopobium cluster' isolates

2015

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This study monitored the dynamics and diversity of the human faecal 'Atopobium cluster' over a 3-month period using a polyphasic approach. Fresh faecal samples were collected fortnightly from 13 healthy donors (six males and seven females) aged between 26 and 61 years. FISH was used to enumerate total (EUB338mix) and 'Atopobium cluster' (ATO291) bacteria, with counts ranging between 1.12¾10 11 and 9.95¾10 11 , and 1.03¾10 9 and 1.16¾10 11 cells (g dry weight faeces) "1 , respectively. The 'Atopobium cluster' population represented 0.2-22 % of the total bacteria, with proportions donor-dependent. Denaturing gradient gel electrophoresis (DGGE) using 'Atopobium cluster'-specific primers demonstrated faecal populations of these bacteria were relatively stable, with bands identified as Collinsella aerofaciens, Collinsella intestinalis/ Collinsella stercoris, Collinsella tanakaei, Coriobacteriaceae sp. PEAV3-3, Eggerthella lenta, Gordonibacter pamelaeae, Olsenella profusa, Olsenella uli and Paraeggerthella hongkongensis in the DGGE profiles of individuals. Colony PCR was used to identify 'Atopobium cluster' bacteria isolated from faeces (n5224 isolates). 16S rRNA gene sequence analysis of isolates demonstrated Collinsella aerofaciens represented the predominant (88 % of isolates) member of the 'Atopobium cluster' found in human faeces, being found in nine individuals. Eggerthella lenta was identified in three individuals (3.6 % of isolates). Isolates of Collinsella tanakaei, an 'Enorma' sp. and representatives of novel species belonging to the 'Atopobium cluster' were also identified in the study. Phenotypic characterization of the isolates demonstrated their highly saccharolytic nature and heterogeneous phenotypic profiles, and 97 % of the isolates displayed lipase activity.

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Section: Dgge Analysis Of the Faecal 'Atopobium Cluster' Populationsupporting

confidence: 81%

Dynamics and diversity of the ‘Atopobium cluster' in the human faecal microbiota, and phenotypic characterization of ‘Atopobium cluster' isolates

2015

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“…And E. lenta bacteremia is considered to be more than identified because of its difficulties of identification [2,8]. But in the case of E. lenta from VITEK 2, we think that confirmation by 16S rRNA sequencing may not be needed in consideration of latest reports including our case [4,6,9].…”

Section: Case Reportmentioning

confidence: 88%

“…Because of this limitations, 16S rRNA sequencing is thought as a good choice for a diagnostic tool to confirm E. lenta infections [2,6,8]. And E. lenta bacteremia is considered to be more than identified because of its difficulties of identification [2,8].…”

Section: Case Reportmentioning

confidence: 99%

“…The various cases of E. lenta infections were reported associated with intrauterine devices, bacteremia associated with malignancy and female genital tract infections [10], cutaneous abscess [11] and bacteremia in Crohn's disease patient [9]. Some reports showed that E. lenta can lead to high morbidity and mortality including septic shock, multiple organ failure, and death [7,9], but the pathogenesis of these cases, especially bacteremia, has not been well established [2,7,9,[12][13][14].…”

Section: Case Reportmentioning

confidence: 99%

“…Many anaerobic Gram-positive bacilli including Clostridium, Propionibacterium, and Eggerthella are common gut commensals [1,2]. Many of these bacteria are considered as contaminants in blood culture, but some Eggerthella species isolated from blood culture are clinically significant [3].…”

Section: Introductionmentioning

confidence: 99%

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Eggerthella lentaBacteremia after Endoscopic Retrograde Cholangiopancreatography in an End-Stage Renal Disease Patient

et al. 2014

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Eggerthellaceae

Gupta

2021

Bergey's Manual of Systematics of Archaea and Bacteria

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Eg.ger.thel.la.ce'ae. N.L. fem. n. Eggerthella type genus of the family; suff. ‐ aceae ending to denote a family; Eggerthellaceae the Eggerthella family. Actinobacteria / Coriobacteriia / Eggerthellales / Eggerthellaceae The family contains the type genus Eggerthella and the following validly published genera: Adlercreutzia, Cryptobacterium, Denitrobacterium, Ellagibacter, Enteroscipio, Gordonibacter , Paraeggerthella, Parvibacter, Rubneribacter , Senegalimassilia , and Slackia . Of these genera, the genus Parvibacter, containing the species Parvibacter caecicola , was recently merged with the genus Adlercreutzia . However, evidence presented indicates that P. caecicola , which remains a validly published name, is distinct from other Adlercreutzia species and hence is retained within the genus Parvibacter . Besides the genera with validly published names, the following effectively published genera “ Arabia ,” “ Hugonella ,” “ Phoenicibacter ,” and “ Raoultibacter ” are also part of this family. The members are Gram‐positive rods or cocci and asaccharolytic except some species. Most members contain enzymes responsible for hydrolyzing amino acids such as arginine and leucine, and their growth is stimulated in the presence of arginine and some other amino acids. Most members are anaerobic, nonmotile, and do not form spores. The G + C content is in the range of 43.4–66.3% for the known species. The species of this family form a distinct clade in phylogenetic trees based on 16S rRNA gene sequences and sequences for different datasets of proteins from genomes. Additionally, the members of the family Eggerthellaceae (order Eggerthellales ) can be reliably distinguished from members of the order Coriobacteriales and other bacteria based on molecular signatures consisting of conserved indels (inserts or deletions) identified in >12 proteins described in earlier work and updated here. DNA G + C content (mol%) : 43.4–66.3 (for the known species). Type genus : Eggerthella Wade et al. 1999 VP emend. Würdemann et al. 2009.

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Eggerthella hongkongensis sp. nov. and eggerthella sinensis sp. nov., two novel Eggerthella species, account for half of the cases of Eggerthella bacteremia

Cited by 118 publications

References 20 publications

Dynamics and diversity of the ‘Atopobium cluster' in the human faecal microbiota, and phenotypic characterization of ‘Atopobium cluster' isolates

Dynamics and diversity of the ‘Atopobium cluster' in the human faecal microbiota, and phenotypic characterization of ‘Atopobium cluster' isolates

Eggerthella lentaBacteremia after Endoscopic Retrograde Cholangiopancreatography in an End-Stage Renal Disease Patient

Eggerthellaceae

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