DOCSLIB.ORG

Of Moraxella Osloensis

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Of Moraxella Osloensis INTERNATIONAL JOURNAL OF SYSTEMATICBACTERIOLOGY, July 1993, p. 474-481 Vol. 43, No. 3 0020-7713/93/030474-08$02.00/0 Copyright 0 1993, International Union of Microbiological Societies Moracxella ZincoZnii sp. nov., Isolated from the Human Respiratory Tract, and Reevaluation of the Taxonomic Position of Moraxella osloensis P. VANDAMME,'.,* M. GILLIS,l M. VANCA"EYT,l B. HOSTE,' K. KERSTERS,' AND E. FALSEN3 Laboratorium voor Microbiologie, University of Ghent, K L. Ledeganchtraat 35, B-9000 Ghent, and Department of Microbiology, University Hospital, Antwerp, Belgium, and Culture Collection, Department of Clinical Bacteriology, University of Gotebolg, S-413 46 Gotebolg, Sweden3 A polyphasic taxonomic study was performed to determine the relationships of 10 Muraellu-like strains isolated mainly from the human respiratory tract in Sweden. Two of the strains formed a separate subgroup on the basis of both their protein contents and their fatty acid contents. However, the overall protein and fatty acid profiles revealed that all 10 strains were highly related. Representative strains of the two subgroups exhibited high DNA binding values (98%) with each other and had an identical DNA base ratio (44 mol% G+C), DNA-rRNA hybridizations revealed that this taxon can be included in the genus Muraxelh, which is only distantly related to phenotypically similar genera, such as the genera Neisseriu and Kingelh, The results of an extensive phenotypic analysis indicated that the general biochemical profile of the 10 strains conforms with the description of the genus Muraxelh given in Bergey 3 Manual of Systematic Bacteriology, We therefore consider these organisms members of a new Muraxelh species, for which the name Moraxellu lincolnii is proposed, Furthermore, we also conclude that MumelZu osloensis belongs, genotypically as well as phenotyp- ically, to the genus Muraxelh. Between 1980 and 1989, 10 Moraxella-like strains were of special peptone (catalog no. L72; Oxoid), 5 g of Lab isolated in Sweden, mainly from the human respiratory tract. Lemco powder (catalog no. L29; Oxoid), 5 g of yeast extract In October 1980, immunotyping (Ouchterlony immunodiffu- (catalog no. L21; Oxoid), 5 g of sodium chloride, 2 g of sion and immunoelectrophoresis) was performed on the first sodium succinate hexahydrate, 2 g of sodium L-glutamate three isolates, and the results revealed that the strains monohydrate, 1 g of magnesium chloride hexahydrate, and represented a distinct taxon which was provisionally named 15 g of agar no. 3 (catalog no. L13; Oxoid); the final pH is "Moraxella lincolnii." Subsequent isolates were rapidly 7.0. This medium was supplemented with 5% (vol/vol) horse identified. In the present study we used a polyphasic ap- blood and is referred to below as standard medium. Optimal proach to determine the phenotypic and genotypic affiliation growth results were obtained at 28°C in a microaerobic of these organisms. We found that the 10 strains constitute a atmosphere containing 5% O,, 10% CO,, and 85% N,. M. new species belonging to the genus Moraxella, and we osloensis strains and reference strains belonging to other propose the name Moraxella Zincolnii sp. nov. This name is Moraxella species were cultivated aerobically at 28°C on used below. In view of the new data and recently published heart infusion agar (Difco). results (9), we also reevaluated the taxonomic position of Phenotypic tests. Phenotypic tests were performed on all Moraxella osloensis as the arguments used by Rossau et al. M. lincolnii strains and on Moraxella reference strains. The to remove this species from the genus Moraxella (18) were morphology of cells was evaluated by Gram staining. Motil- not conclusive. ity was observed in young cultures by examining wet mounts in broth by phase-contrast microscopy. The following tests were performed as described previously (5): presence of MATERIALS AND METHODS oxidase, catalase, p-galactosidase, DNase, and urease; pro- duction of indole; reduction of nitrate and nitrite; denitrifi- Bacterial strains and growth conditions. All of the strains cation; growth under anaerobic conditions; growth on Dri- used are listed in Table 1. We obtained weak growth of M. galski agar; growth at different temperatures; growth in the Lincolnii strains on several blood agar bases, including 5% presence of different concentrations of NaCl; oxidation or (vol/vol) horse blood in Mueller-Hinton agar (catalog no. fermentation of D-glucose; liquefaction of gelatin; proteoly- CM337; Oxoid, Ltd., Basingstoke, United Kingdom), nutri- sis on Loffler slants; hydrolysis of Tween 80; tolerance of ent agar no. 2 (catalog no. CM67; Oxoid), Columbia agar penicillin (lO-Fg discs); hemolysis and odor on horse blood (catalog no. CM331; Oxoid), and heart infusion agar (catalog agar; and formation of pigment on nutrient agar. Acid no. 0038-01-5; Difco Laboratories, Detroit, Mich.). Growth production from D-glucose, maltose, D-fructose, and sucrose was not markedly enhanced on chocolate agar plates. The was evaluated in a medium containing 15 g of Proteose best growth results were obtained on a medium routinely Peptone no. 3 (catalog no. 0122; Difco), 4.5 g of NaCl, 3.0 g used in our department for the cultivation of fastidious of Na,HPO, . 2H,O, 1.5 g of sodium alginate, and 17 g of Campylobacter strains. This medium contains (per liter) 10 g Bacto Agar (catalog no. 0140; Difco) in 1,000 ml of placenta extract (the pH was adjusted to 7.7). This basal medium was supplemented with 2.5 ml of phenol red (0.5% solution), 5 ml * Corresponding author. of hemin (0.2% solution), 90 ml of ascitic fluid, and 10 ml of 474 VOL.43, 1993 MORAXELLA LINCOLNII SP. NOV. 475 TABLE 1. Strains used Received Source, if known Taxon Strain" from": M. lincolnii CCUG 9405' (= LMG 5127') Lincoln Human nasopharynx, 6-mo-old female with fever (1980, Sweden) M. lincolnii CCUG 9406 (= LMG 10487) Lincoln Human throat, 1.5-yr-old male, respiratory tract infection (1980, Sweden) M. lincolnii CCUG 9511 (= LMG 10488) Lange Human nasopharynx, 1.5-yr-old female (1980, Sweden) M. lincolnii CCUG 11973 (= LMG 10489) Dennford Human nasopharynx, 2-yr-old child, whooping cough specimen (1982, Sweden) M. lincolnii CCUG 17467 (= LMG 10490) PHL Human nasopharynx, 21-yr-old female (1985, Sweden) M. lincolnii CCUG 18789 (= LMG 10491) Dennford Human eye, 5-mo-old male (1986, Sweden) M. lincolnii CCUG 20072 (= LMG 10492) Bronnestam Human respiratory tract, 11-mo-old male (1987, Sweden) M. Iincolnii CCUG 20073 (= LMG 10493) Bronnestam Human nasopharynx, 1-yr-old male (1987, Sweden) M. lincolnii CCUG 21674 (= LMG 10494) PHL Human nasopharynx, 6.5-yr-old female (1987, Sweden) M. lincolnii CCUG 24769 (= LMG 10495) PHL Human blood, bursitis of the left knee (1989, Sweden) M. osloensis LMG 987 (= ATCC 10973) TRS M. osloensis LMG 1043 (= ATCC 19961 = TRS Human urine (1951, Norway) NCTC 10756) M. osloensis LMG 1044 (= ATCC 19963 = TRS Human nose (1951, Norway) NCTC 10749) M. osloensis CCUG 63 (= LMG 6916) Lincoln Human urine, 10-yr-old girl, suspected pyelonephritis (1968, Sweden) M. osloensis CCUG 350T (= LMG 5131T = B~vre Human cerebrospinal fluid ATCC 19976') M. osloensis CCUG 11977 (= LMG 6917) PHL Human blood, 82-yr-old male with pneumonia (1982, Sweden) M. osloensis CCUG 13305 (= LMG 6918) PHL Human abdomen, 15-yr-old female, pus from appendix (1983, Sweden) M. osloensis CCUG 13369 (= LMG 6919) PHL Human blood, 8-yr-old male (1983, Sweden) M. osloensis CCUG 13705 (= LMG 6920) PHL Human cerebrospinal fluid, 24-yr-old female, meningitis (1983, Sweden) M. atlantae CCUG 6415T (= LMG 5133= = Bgvre Human blood (United States) ATCC 29525') M. bovis CCUG 2133T (= LMG 986T = Bmre Cattle, pinkeye ATCC lO9OOT) M. canis CCUG 8415AT (= LMG 11194T) PHL Human wound, 29-yr-old woman, dog bite (1979, Sweden) M. catarrhalis CCUG 353T (= LMG 11192T = Bgvre ATCC 25238T) M. caviae CCUG 35ST (= LMG 5129T = B0vre Pharynx, guinea pig (United States) ATCC 14659T = CCUG 2132T) M. cuniculi CCUG 2154' (= LMG 8382T = Berger Rabbit oral mucosa ATCC 14688') M. lacunata CCUG 4441* (= LMG 5301T = CIP Subacute conjunctivitis CIP A182T) M. lacunata LMG 1009 (= ATCC 17952 = TRS CCUG 4862 = NCTC 7919 M. nonlique- CCUG 348T (= ATCC 19975 = Bmre Nose swab faciens NCTC 10464T) M. nonlique- LMG 1011 (= ATCC 17954) TRS Human throat swab (1950, Canada) faciens M. ovis CCUG 354' (= LMG 8381T = Bgvre mine eye, conjunctivitis ATCC 33078T) ~ ~ ~ ~~ ATCC, American weCulture Collection, Rockville, Md.; Berger, U. Berger, Heidelberg, Germany; Bronnestam, R. Bronnestam, Skovde, Sweden; B0vre, K. Mwe, Oslo, Norway; CCUG, Culture Collection, University of Goteborg, Goteborg, Sweden; CIP, Collection de I'Institut Pasteur, Paris, France; Dennford, J. Dennford, Bor As, Sweden; Lange, S. Lange, Gijteborg, Sweden; LMG, Culture Collection of the Laboratorium voor Microbiologie, University of Ghent, Ghent, Belgium; Lincoln, K. Lincoln, Goteborg, Sweden; NCTC, National Collection of Type Cultures, London, United Kingdom; PHL, Public Health Laboratory Service, Giiteborg, Sweden; TRS, Torry Research Station, Aberdeen, Scotland. a 30% carbohydrate solution. API ZYM tests were per- amidase, lysine arylamidase, proline arylamidase, cr-glut- formed according to the recommendations of the manufac- amyl-a-glutamic acid arylamidase, glycyl-phenylalanine turer (MI bioM&rieux, La Balme-les-Grottes, Montalieu- arylamidase, prolyl-arginine arylamidase, seryl-methionine Vercieu, France). arylamidase, and alanyl-phenylalanyl-prolyl-alaninearyla- The following enzymes belonging to a noncommercial
Load more

Recommended publications
  • Peritonitis Due to Moraxella Osloensis: an Emerging Pathogen
    Hindawi Case Reports in Nephrology Volume 2018, Article ID 4968371, 3 pages https://doi.org/10.1155/2018/4968371 Case Report Peritonitis due to Moraxella Osloensis: An Emerging Pathogen Sreedhar Adapa,1 Purva Gumaste,2 Venu Madhav Konala,3 Nikhil Agrawal,4 Amarinder Singh Garcha ,1 and Hemant Dhingra 5 1 Attending Nephrologist, Te Nephrology Group, Fresno, CA, USA 2Attending Physician, Kaweah Delta Medical Center, Visalia, CA, USA 3Medical Director and Medical Oncologist, Ashland Bellefonte Cancer Center, Ashland, KY, USA 4Fellow, Nephrology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA 5Program Director, Internal Medicine Residency, St Agnes Medical Center, Fresno, CA, USA Correspondence should be addressed to Hemant Dhingra; [email protected] Received 22 October 2018; Accepted 10 December 2018; Published 20 December 2018 Academic Editor: Rumeyza Kazancioglu Copyright © 2018 Sreedhar Adapa et al. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Peritonitis is a very serious complication encountered in patients undergoing peritoneal dialysis and healthcare providers involved in the management should be very vigilant. Gram-positive organisms are the frequent cause of peritonitis compared to gram- negative organisms. Tere has been recognition of peritonitis caused by uncommon organisms because of improved microbiological detection techniques. We report a case of peritonitis caused by Moraxella osloensis (M. osloensis), which is an unusual cause of infections in humans. A 68-year-old male, who has been on peritoneal dialysis for 2 years, presented with abdominal pain and cloudy efuent.
    [Show full text]
  • Selection of a Bacterium for the Mass Production of Phasmarhabditis Hermaphrodita (Nematoda : Rhabditidae) As a Biocontrol Agent for Slugs
    Fundam. appl. NemalOl., 1995,18 (5),419-425 Selection of a bacterium for the mass production of Phasmarhabditis hermaphrodita (Nematoda : Rhabditidae) as a biocontrol agent for slugs Michael J. WILSON *, David M. GLEN *, Susan K GEORGE * and Jeremy D. PEARCE ** * Department ofAgricullural Sciences, University ofBristol, !nstitute ofArable Crops Research, Long Ashton Research Station, Bristol BSIB 9AF, u.K. and ** MiCToBio Ltd., Church Street, Thriplow, Royston, Herts. SGB 7RE, u.K. Accepted for publication 16 September 1994. Summary - Dauer larvae of the slug-parasitic nematode, Phasmarhabditis hermaphrodir.a, were found to carry a mean of ca . 70 bacterial colony forming units with up to five different bacterial types present in individual nematodes. Nine bacterial isolates found associated with P. hermaphrodir.a, were injected into the body cavity of the slug, DerOGeras reliculalum. Only two isolates (Aeromonas hydrophila and Pseudomonasfluorescens, isolate 140), were found to be pathogenic. Phasmarhabditis hermaphrodila grown in monoxenic culture with five bacterial isolates (Moraxella osloensis, Providencia rellgeri, Serralia proteamaculans, P. fluorescens, isolate 140 and P. fluorescens, isolate 141) which supported strong growth were bioassayed against D. reliculalum. Nematodes grown with M. osloensis or P. fluorescens (isolate 141) were pathogenic, those grown with P. reugeri gave inconsistent results and those grown with the other two bacteria were non-pathogenic. These results demonstrate that differences in pathogenicity between
    [Show full text]
  • Moraxella Species: Infectious Microbes Identified by Use of Time-Of
    Japanese Journal of Ophthalmology (2019) 63:328–336 https://doi.org/10.1007/s10384-019-00669-4 CLINICAL INVESTIGATION Moraxella species: infectious microbes identifed by use of time‑of‑fight mass spectrometry Shunsuke Takahashi1 · Kazuhiro Murata1 · Kenji Ozawa1 · Hiroki Yamada2 · Hideaki Kawakami3 · Asami Nakayama4 · Yuko Asano5 · Kiyofumi Mochizuki1 · Hiroshige Mikamo6 Received: 14 August 2018 / Accepted: 2 April 2019 / Published online: 4 July 2019 © Japanese Ophthalmological Society 2019 Abstract Purpose To report the clinical manifestations, identifcation, antimicrobial susceptibilities, and treatment outcomes of ocular infections caused by Moraxella species. Study design Retrospective study. Patients and methods The medical records of all patients treated at the Departments of Ophthalmology of the Ogaki Munici- pal Hospital and the Gifu University Graduate School of Medicine for ocular infections caused by Moraxella species between January 2011 and June 2017 were examined. The stored Moraxella species isolated from ocular samples were identifed by matrix-assisted laser desorption/ionization time-of-fight mass spectrometry (MALDI-TOF MS), molecular identifcation, and the biochemical properties. Results Sixteen eyes of 16 patients were treated for Moraxella ocular infections. The patients’ median age was 72 years. A predisposing systemic or ocular condition was identifed in 15 of the patients. Nine of the patients developed keratitis; four, conjunctivitis; and three, blebitis. M lacunata (6 eyes), M catarrhalis (6), M nonliquefaciens (3), and M osloensis (1) were identifed by MALDI-TOF MS. All isolates were sensitive to levofoxacin, tobramycin, ceftazidime, ceftriaxone, and cefa- zolin. Twelve patients with keratitis or blebitis were treated with various topical antimicrobial combinations, and systemic antibiotics were used in 10 of the 12 patients.
    [Show full text]
  • Moraxella Bacteremia in Cancer Patients
    Open Access Case Report DOI: 10.7759/cureus.15316 Moraxella Bacteremia in Cancer Patients Shamra Zaman 1 , John Greene 2 1. Medicine, University of South Florida, Tampa, USA 2. Internal Medicine, Moffitt Cancer Center, Tampa, USA Corresponding author: John Greene, [email protected] Abstract Moraxella is a gram-negative bacterium part of the Moraxellaceae family. It is a pathogen that is commonly found in the upper respiratory tract of humans. It is a rare cause of community-acquired pneumonia and can be found in immunocompromised individuals, especially those with impaired humoral immunity such as hypogammaglobulinemia and those with lung diseases. We present three cases of Moraxella infections at the Moffitt Cancer Center between the years 2011 and 2017. We performed a literature review of Moraxella bacteremia in cancer patients and included three patients, two with a history of multiple myeloma and one undergoing radiation therapy for non-small cell lung carcinoma. None of the patients died as a result of the infection. Moraxella infections can result in a range of severity with increasing resistance to antibiotic therapy. Categories: Infectious Disease, Oncology Keywords: moraxella, myeloma, respiratory tract, pneumonia, immunocompromised patient Introduction Moraxella is a gram-negative bacterium that has a coccobacillus shape [1]. Originally considered normal flora in the human respiratory system, it can cause respiratory tract infections [2]. It primarily affects adults with prior chronic lung disease and the immunosuppressed. The most common immunodeficiency is hypogammaglobulinemia, which is found in patients with multiple myeloma and chronic lymphocytic leukemia (CLL). Invasive infections include meningitis, pneumonia, and endocarditis [3,4]. We present the cases of three cancer patients with Moraxella infections that illustrate the most common risk factors that predispose to this infection.
    [Show full text]
  • Microbiome Analysis and Confocal Microscopy of Used Kitchen
    www.nature.com/scientificreports OPEN Microbiome analysis and confocal microscopy of used kitchen sponges reveal massive colonization by Received: 20 December 2016 Accepted: 7 June 2017 Acinetobacter, Moraxella and Published: xx xx xxxx Chryseobacterium species Massimiliano Cardinale 1, Dominik Kaiser2, Tillmann Lueders 3, Sylvia Schnell1 & Markus Egert 2 The built environment (BE) and in particular kitchen environments harbor a remarkable microbial diversity, including pathogens. We analyzed the bacterial microbiome of used kitchen sponges by 454–pyrosequencing of 16S rRNA genes and fluorescencein situ hybridization coupled with confocal laser scanning microscopy (FISH–CLSM). Pyrosequencing showed a relative dominance of Gammaproteobacteria within the sponge microbiota. Five of the ten most abundant OTUs were closely related to risk group 2 (RG2) species, previously detected in the BE and kitchen microbiome. Regular cleaning of sponges, indicated by their users, significantly affected the microbiome structure. Two of the ten dominant OTUs, closely related to the RG2-species Chryseobacterium hominis and Moraxella osloensis, showed significantly greater proportions in regularly sanitized sponges, thereby questioning such sanitation methods in a long term perspective. FISH–CLSM showed an ubiquitous distribution of bacteria within the sponge tissue, concentrating in internal cavities and on sponge surfaces, where biofilm–like structures occurred. Image analysis showed local densities of up to 5.4 * 1010 cells per cm3, and confirmed the dominance ofGammaproteobacteria . Our study stresses and visualizes the role of kitchen sponges as microbiological hot spots in the BE, with the capability to collect and spread bacteria with a probable pathogenic potential. In industrialized countries, humans spend up to 90% of their lifetime within built environments (BEs)1.
    [Show full text]
  • Moraxella Nonliquefaciens and M. Osloensis Are Important Moraxella Species That Cause Ocular Infections
    microorganisms Article Moraxella nonliquefaciens and M. osloensis Are Important Moraxella Species That Cause Ocular Infections Samantha J. LaCroce 1, Mollie N. Wilson 2, John E. Romanowski 3, Jeffrey D. Newman 4 , Vishal Jhanji 3, Robert M. Q. Shanks 3 and Regis P. Kowalski 3,* 1 Department of Ophthalmology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA; [email protected] 2 Clinical Laboratory—Microbiology, University of Pittsburgh Medical Center, Pittsburgh, PA 16148, USA; [email protected] 3 The Charles T. Campbell Ophthalmic Microbiology Laboratory, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; [email protected] (J.E.R.); [email protected] (V.J.); [email protected] (R.M.Q.S.) 4 Department of Biology, Lycoming College, Williamsport, PA 17701, USA; [email protected] * Correspondence: [email protected]; Tel.: +1-(412)-647-7211; Fax: +1-(412)-647-5331 Received: 1 February 2019; Accepted: 31 May 2019; Published: 4 June 2019 Abstract: Moraxella is an ocular bacterial pathogen isolated in cases of keratitis, conjunctivitis, and endophthalmitis. Gram-negative brick-shaped diplobacilli from ocular specimens, and slow growth in culture, are early indications of Moraxella ocular infection; however, identifying Moraxella to species can be complex and inconsistent. In this study, bacteria consistent with Moraxella were identified to species using: (1) DNA sequencing coupled with vancomycin susceptibility, (2) MALDI-TOF mass spectrometry, and (3) the Biolog ID system. Study samples consisted of nine ATCC Moraxella controls, 82 isolates from keratitis, 21 isolates from conjunctivitis, and 4 isolates from endophthalmitis. The ATCC controls were correctly identified. For keratitis, 66 (80.5%) were identified as M.
    [Show full text]
  • Neonatal Early Onset Sepsis Due to Moraxella Osloensis: Case­Report and Revision of the Literature
    Neonatal early onset sepsis due to Moraxella osloensis: Case­report and revision of the literature BY EMILIA PARODI, CHIARA GALLETTO, TIZIANA VINCIGUERRA, PAOLA STROPPIANA, INES CASONATO, MARIO FRIGERIO Abstract We report the first case of early-onset systemic neonatal infection associated with Moraxella osloensis bacteriemia in a full term baby. The genus Moraxella is constituted by a group of pleomorphic bacteria obligate aerobes, Gram-negative, oxidase positive and indole negative infrequently isolated from clinical specimens. The organism is rarely reported in the literature as the causative agent of infection in humans, mostly in immunocompromised patients. Only 12 cases of M. osloensis- related infections during childhood have been reported in the literature so far. This unique report of M. osloensis infection, during the neonatal period, concerns the isolation of the bacteria in purulent secretions from the eyes of a 3-week-old baby with opthalmia. In our patient, the precocity of the onset of symptoms allows us to hypothesize a vertical transmission of the bacteria. Key words: Moraxella, newborn, sepsis Introduction The genus Moraxella is constituted by a group of pleomorphic bacteria obligate aerobes, Gram-negative, oxidase positive and indole negative, infrequently isolated from clinical specimens: the main species (M. catarrhalis, M. nonliquefaciens, M. and M. lincolnii osloensis) colonize as saprophytes the upper respiratory tract and occasionally the skin and urogenital tract in humans. (1-3) The clinical significance of M.osloensis isolates may be difficult to determine, because the organism is rarely reported in the literature as the causative agent of infection in humans, mostly immunocompromised patients. (4) We report the first case of early-onset systemic neonatal infection, most likely due to vertical transmission of M.
    [Show full text]
  • Virulence Mechanisms of the Nematode Phasmarhabditis Hermaphrodita and Its Associated Bacterium Moraxella Osloensis to the Gray Garden Slug Deroceras Reticulatum
    VIRULENCE MECHANISMS OF THE NEMATODE PHASMARHABDITIS HERMAPHRODITA AND ITS ASSOCIATED BACTERIUM MORAXELLA OSLOENSIS TO THE GRAY GARDEN SLUG DEROCERAS RETICULATUM DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Li Tan, M.S. * * * * * The Ohio State University 2002 Dissertation Committee: Approved by Dr. Parwinder S. Grewal, Adviser Dr. David L. Denlinger _______________________________ Dr. Donald H. Dean Adviser Dr. Ronald B. Hammond Department of Entomology UMI Number: 3081970 ________________________________________________________ UMI Microform 3081970 Copyright 2003 by ProQuest Information and Learning Company. All rights reserved. This microform edition is protected against unauthorized copying under Title 17, United States Code. ____________________________________________________________ ProQuest Information and Learning Company 300 North Zeeb Road PO Box 1346 Ann Arbor, MI 48106-1346 ABSTRACT Moraxella osloensis, a gram-negative bacterium, is associated with Phasmarhabditis hermaphrodita, a lethal slug-parasitic nematode that has potential for the biocontrol of mollusk pests, especially the gray garden slug Deroceras reticulatum. We discovered that the shell cavity in the posterior mantle region of D. reticulatum served as the main portal of entry for P. hermaphrodita. The nematode is a facultative parasite of the slug and only dauer stage can serve as an infective stage in the natural environment. Aged M. osloensis cultures were pathogenic to D. reticulatum after injection into the shell cavity or hemocoel of the slug. P. hermaphrodita vectors M. osloensis into the shell cavity and the bacterium is the main killing agent in the nematode/bacterium complex. We also discovered that M. osloensis lipopolysaccharide (LPS) was an endotoxin that was active against the slug.
    [Show full text]
  • Moraxella Nonliquefaciens Bloodstream Infection and Sepsis in a Pediatric Cancer Patient: Case Report and Literature Review Carlos L
    Correa-Martínez et al. BMC Infectious Diseases (2019) 19:836 https://doi.org/10.1186/s12879-019-4489-y CASE REPORT Open Access Moraxella nonliquefaciens bloodstream infection and sepsis in a pediatric cancer patient: case report and literature review Carlos L. Correa-Martínez1* , Kerstin K. Rauwolf2, Franziska Schuler3, Miriam Füller2, Stefanie Kampmeier1 and Andreas H. Groll2* Abstract Background: Moraxella nonliquefaciens is a usually non-pathogenic biofilm-producing Gram-negative coccobacillus which may colonize the upper respiratory tract, rarely causing invasive disease. Although very rare, bloodstream infections caused by this organism have been described, showing often a fatal outcome. Here, we report the case of a pediatric cancer patient with bloodstream infection and sepsis due to M. nonliquefaciens showing full recovery after appropriate antibiotic treatment. Case presentation: A three-year-old boy with stage IV neuroblastoma was admitted for high-dose chemotherapy with autologous stem cell rescue after standard neuroblastoma treatment. Despite receiving antimicrobial prophylaxis with trimethoprim/sulfamethoxazole, acyclovir and amphothericin B, the patient presented with fever of up to 39.5 °C and neutropenia. Besides a chemotherapy-related mucositis and an indwelling Broviac catheter (removed), no infection focus was identified on physical examination. Moraxella nonliquafaciens was identified in blood cultures. After antibiotic treatment and neutrophil recovery, the patient was fit for discharge. Conclusions: The case described highlights the importance of an otherwise non-pathogenic microorganism, especially in immunosupressed cancer patients. It should be kept in mind that, although very infrequently, Moraxella nonliquefaciens may cause bloodstream infections that can be successfully treated with prompt focus identification and antibiotic therapy. Keywords: Sepsis, Moraxella nonliquefaciens, Children, Infection, Cancer Background in hemato-oncological patients [9, 10] who subsequently Moraxella nonliquefaciens is a Gram-negative coccoba- died.
    [Show full text]
  • Biological Control of Pest Non-Marine Molluscs: a Pacific Perspective on Risks to Non-Target Organisms
    insects Perspective Biological Control of Pest Non-Marine Molluscs: A Pacific Perspective on Risks to Non-Target Organisms Carl C. Christensen 1,2, Robert H. Cowie 1,2 , Norine W. Yeung 1,2 and Kenneth A. Hayes 1,2,* 1 Bernice Pauahi Bishop Museum, Honolulu, HI 96822, USA; [email protected] (C.C.C.); [email protected] (R.H.C.); [email protected] (N.W.Y.) 2 Pacific Biosciences Research Center, University of Hawaii, Honolulu, HI 96822, USA * Correspondence: [email protected] Simple Summary: As malacologists long concerned with conservation of molluscs, we present empirical evidence supporting the proposition that biological control of nonmarine mollusc pests has generally not been demonstrated to be safe and effective, which are the basic measures of success. Yet claims of success often accompany contemporary biological control programs, although without rigorous evaluations. Failed molluscan biocontrol programs include well known classical control efforts that continue to devastate native biodiversity, especially on Pacific islands, as well as more contemporary programs that claim to be safer, with minimal non-target impacts. We do not condemn all biological control programs as ineffective, unsafe, and poorly evaluated, but emphasize the need for programs targeting non-marine molluscs to incorporate the lessons learned from past failures, and to do a better job of defining and measuring success both pre- and post- release of biocontrol agents. Most importantly, we call for the biocontrol community not to rely Citation: Christensen, C.C.; Cowie, on entomologists with backgrounds in use of host-specific agents, who yet promote generalist R.H.; Yeung, N.W.; Hayes, K.A.
    [Show full text]
  • Prokaryote Data We
    Dataset S1. Endogenous respiration rates in heterotrophic prokaryotes Notes to Table S1a: On data collection: Prokaryote data were compiled by searching the www.pubmedcentral.nih.gov full-text library for "bacterium" and "endogenous respiration" and sub- sequent analysis of the returned 570 documents (mostly papers in the Journal of Bacteriology and Journal of Applied and Environmental Microbiol- ogy, time period 1940-2006) and references therein. On cell size and taxonomy: Data on endogenous respiration rates (i.e. respiration rates of non-growing cells in nutrient-deprived media) in heterotrophic eukaryotes are pre- sented. Studies of bacterial respiration very rarely report information on cell size, which had therefore to be retrieved from different sources. To do so, an attempt was made to assign the bacterial strains described in the metabolic sources to accepted species names, to futher estimate the cell size for these species in the relevant literature. This was done using strain designations and information in the offician bacterial culture collections, like ATCC (American Type Culture Collection), NCTC (National Type Culture Collection) and others. Column "Species (Strain)" gives the strain designation as given by the authors of the respiration data paper. Column "Valid Name" gives the relevant valid species name for this strain, as determined from culture collections' information and/or other literature sources. Valid names follow Euzéby (1997). Cell size in the "Mpg" column correspond to species indicated in the "Valid Name" column. Note that this information is of approxi- mate nature, because many respiration data come from quite old publications and it was sometimes difficult to find out the valid name of the strain used with great precision.
    [Show full text]
  • Cultivation-Based Quantification and Identification of Bacteria at Two
    bioRxiv preprint doi: https://doi.org/10.1101/2021.02.19.431940; this version posted February 19, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Cultivation-based quantification and identification of bacteria at 2 two hygienic key sides of domestic washing machines 3 4 Susanne Jacksch 1,3, Huzefa Zohra 1, Mirko Weide 2, Sylvia Schnell 3, and Markus Egert 1 5 6 1 Faculty of Medical and Life Sciences, Institute of Precision Medicine, Microbiology and 7 Hygiene Group, Furtwangen University, 78054 Villingen-Schwenningen, Germany 8 2 International Research & Development – Laundry & Home Care, Henkel AG & Co. KGaA, 9 40191 Düsseldorf, Germany 10 3 Institute of Applied Microbiology, Research Centre for BioSystems, Land Use, and Nutrition 11 (IFZ), Justus-Liebig-University Giessen, 35392 Giessen, Germany 12 13 Keywords: Washing machine, bacteria, hygiene, MALDI Biotyping 14 15 Correspondence: 16 * Prof. Dr. Markus Egert, Faculty of Medical and Life Sciences, Institute of Precision Medicine, 17 Microbiology and Hygiene Group, Furtwangen University, Campus Villingen-Schwenningen, 18 Germany. Telephone: +49 7720 3074554, Fax: +49 7720 3074207, E-mail: Markus.Egert@hs- 19 furtwangen.de 20 1 bioRxiv preprint doi: https://doi.org/10.1101/2021.02.19.431940; this version posted February 19, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Abstract 2 Detergent drawer and door seal represent important sites for microbial life in domestic washing 3 machines.
    [Show full text]