Introductory Remarks: Bacterial Endosymbionts or Pathogens of Free-Living Amebae1

Abstract Free-living amebae are ubiquitous in the environment and can be isolated from a variety of habitats including water, soil, air, hospital water systems, dental units, contact lens cases, and cooling towers. The interaction of amebae with other microorganisms in their environment is varied. Bacteria are a major food source for free-living amebae. However, some bacteria have established a stable symbiotic relationship with amebae. Recent reports indicate an association of amebae with intracellular bacterial pathogens. Such amebae may serve as reservoirs for maintaining and dispersing pathogenic bacteria in the environment or as vectors of bacterial disease in humans.

[1]  M. Leippe,et al.  Membrane lipid composition protects Entamoeba histolytica from self‐destruction by its pore‐forming toxins , 2004, FEBS letters.

[2]  Gilbert Greub,et al.  Microorganisms Resistant to Free-Living Amoebae , 2004, Clinical Microbiology Reviews.

[3]  Kwang W Jeon,et al.  Gene switching in Amoeba proteus caused by endosymbiotic bacteria , 2004, Journal of Cell Science.

[4]  M. P. Gallagher,et al.  Interactions between Salmonella typhimurium and Acanthamoeba polyphaga, and Observation of a New Mode of Intracellular Growth within Contractile Vacuoles , 2003, Microbial Ecology.

[5]  G. Cabral,et al.  Interaction of an Acanthamoeba Human Isolate Harboring Bacteria with Murine Peritoneal Macrophages 1 , 2003, The Journal of eukaryotic microbiology.

[6]  T. Preston,et al.  Locomotion and Phenotypic Transformation of the Amoeboflagellate Naegleria gruberi at the Water–Air Interface , 2003, The Journal of eukaryotic microbiology.

[7]  D. Raoult,et al.  Parachlamydia acanthamoeba Is Endosymbiotic or Lytic for Acanthamoeba polyphaga Depending on the Incubation Temperature , 2003, Annals of the New York Academy of Sciences.

[8]  Michael Wagner,et al.  Fluorescence in situ hybridisation for the identification and characterisation of prokaryotes. , 2003, Current opinion in microbiology.

[9]  G. Cabral,et al.  Acanthamoeba spp. as Agents of Disease in Humans , 2003, Clinical Microbiology Reviews.

[10]  M. Leippe,et al.  Amoebapores, archaic effector peptides of protozoan origin, are discharged into phagosomes and kill bacteria by permeabilizing their membranes. , 2003, Developmental and comparative immunology.

[11]  I. Golovliov,et al.  Survival and Growth of Francisella tularensis in Acanthamoeba castellanii , 2003, Applied and Environmental Microbiology.

[12]  M. Leippe,et al.  Pore-forming Polypeptides of the Pathogenic Protozoon Naegleria fowleri * , 2002, The Journal of Biological Chemistry.

[13]  M. Wagner,et al.  Obligate bacterial endosymbionts of Acanthamoeba spp. related to the beta-Proteobacteria: proposal of 'Candidatus Procabacter acanthamoebae' gen. nov., sp. nov. , 2002, International journal of systematic and evolutionary microbiology.

[14]  L. Engstrand,et al.  Free-living Amoebae Promote Growth and Survival of Helicobacter pylori , 2002, Scandinavian journal of infectious diseases.

[15]  J. Barbeau,et al.  Biofilms augment the number of free-living amoebae in dental unit waterlines. , 2001, Research in microbiology.

[16]  F. Schuster,et al.  Balamuthia mandrillaris: its Pathogenic Potential , 2001, The Journal of eukaryotic microbiology.

[17]  R. Hoffmann,et al.  Enlarged Chlamydia-like organisms as spontaneous infection of Acanthamoeba castellanii , 2001, Parasitology Research.

[18]  D Raoult,et al.  Survival of Coxiella burnetii within free-living amoeba Acanthamoeba castellanii. , 2001, Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases.

[19]  D. Lloyd,et al.  Microbial differentiation and changes in susceptibility to antimicrobial agents , 2000, Journal of applied microbiology.

[20]  L. Bermudez,et al.  Mycobacterium avium Grown inAcanthamoeba castellanii Is Protected from the Effects of Antimicrobials , 2000, Antimicrobial Agents and Chemotherapy.

[21]  M. Horn,et al.  Neochlamydia hartmannellae gen. nov., sp. nov. (Parachlamydiaceae), an endoparasite of the amoeba Hartmannella vermiformis. , 2000, Microbiology.

[22]  P. Rigby,et al.  Interaction between Burkholderia pseudomallei and Acanthamoeba Species Results in Coiling Phagocytosis, Endamebic Bacterial Survival, and Escape , 2000, Infection and Immunity.

[23]  D. Raoult,et al.  'Candidatus Odyssella thessalonicensis' gen. nov., sp. nov., an obligate intracellular parasite of Acanthamoeba species. , 2000, International journal of systematic and evolutionary microbiology.

[24]  Luiz E. Bermudez,et al.  Intracellular Growth in Acanthamoeba castellanii Affects Monocyte Entry Mechanisms and Enhances Virulence of Legionella pneumophila , 1999, Infection and Immunity.

[25]  M Wagner,et al.  Novel bacterial endosymbionts of Acanthamoeba spp. related to the Paramecium caudatum symbiont Caedibacter caryophilus. , 1999, Environmental microbiology.

[26]  M. Valvano,et al.  Intracellular survival and saprophytic growth of isolates from the Burkholderia cepacia complex in free-living amoebae. , 1999, Microbiology.

[27]  T. Humphrey,et al.  Survival of Escherichia coli O157 in a soil protozoan: implications for disease. , 1999, FEMS microbiology letters.

[28]  K. Schleifer,et al.  In Situ Detection of Novel Bacterial Endosymbionts of Acanthamoeba spp. Phylogenetically Related to Members of the Order Rickettsiales , 1999, Applied and Environmental Microbiology.

[29]  M. R. Brown,et al.  Unexplored reservoirs of pathogenic bacteria: protozoa and biofilms. , 1999, Trends in microbiology.

[30]  R. Sommer,et al.  Interactions of "Limax amoebae" and gram-negative bacteria: experimental studies and review of current problems. , 1998, The Tokai journal of experimental and clinical medicine.

[31]  K. Birkness,et al.  Mycobacterium avium Bacilli Grow Saprozoically in Coculture with Acanthamoeba polyphaga and Survive within Cyst Walls , 1998, Applied and Environmental Microbiology.

[32]  O. Harb,et al.  Utilization of similar mechanisms by Legionella pneumophila to parasitize two evolutionarily distant host cells, mammalian macrophages and protozoa , 1997, Infection and immunity.

[33]  M. Heinemann,et al.  Infection of Acanthamoeba castellanii by Chlamydia pneumoniae , 1997, Applied and environmental microbiology.

[34]  D. Ahearn,et al.  Effect of Bacteria on Survival and Growth of Acanthamoeba castellanii , 1997, Current Microbiology.

[35]  T. Marrie,et al.  Chlamydia-like obligate parasite of free-living amoebae , 1997, The Lancet.

[36]  R. Amann,et al.  Obligate intracellular bacterial parasites of acanthamoebae related to Chlamydia spp , 1997, Applied and environmental microbiology.

[37]  R. Amann,et al.  The design and application of ribosomal RNA-targeted, fluorescent oligonucleotide probes for the identification of endosymbionts in protozoa. , 1996, Methods in molecular biology.

[38]  K. Jeon.  Bacterial endosymbiosis in amoebae. , 1995, Trends in cell biology.

[39]  H. Bergmann,et al.  [Acanthamoeba, naturally intracellularly infected with Pseudomonas aeruginosa, after their isolation from a microbiologically contaminated drinking water system in a hospital]. , 1995, Zentralblatt fur Hygiene und Umweltmedizin = International journal of hygiene and environmental medicine.

[40]  M. R. Brown,et al.  Trojan horses of the microbial world: protozoa and the survival of bacterial pathogens in the environment. , 1994, Microbiology.

[41]  R. Michel,et al.  Acanthamoeba from human nasal mucosa infected with an obligate intracellular parasite , 1994 .

[42]  G. Vogels,et al.  Effects of Grazing by the Free-Living Soil Amoebae Acanthamoeba castellanii, Acanthamoeba polyphaga, and Hartmannella vermiformis on Various Bacteria , 1993, Applied and environmental microbiology.

[43]  T. Fritsche,et al.  Occurrence of bacterial endosymbionts in Acanthamoeba spp. isolated from corneal and environmental specimens and contact lenses , 1993, Journal of clinical microbiology.

[44]  B. Drasar,et al.  Association of Vibrio cholerae with fresh water amoebae. , 1992, Journal of medical microbiology.

[45]  W. Drozanski.  Sarcobium lyticum gen. nov., sp. nov., an Obligate Intracellular Bacterial Parasite of Small Free-Living Amoebae† , 1991 .

[46]  S. Kilvington,et al.  Survival of Legionella pneumophila within cysts of Acanthamoeba polyphaga following chlorine exposure. , 1990, The Journal of applied bacteriology.

[47]  H. Müller,et al.  INTERACTIONS OF LISTERIA MONOCYTOGENES, LISTERIA SEELIGERI, AND LISTERIA INNOCUA WITH PROTOZOANS , 1990 .

[48]  E. Shotts,et al.  Survival of coliforms and bacterial pathogens within protozoa during chlorination , 1988, Applied and environmental microbiology.

[49]  F. Marciano-cabral,et al.  Biology of Naegleria spp. , 1988, Microbiological reviews.

[50]  F. Marciano-cabral,et al.  Chemotaxis by Naegleria fowleri for bacteria. , 1987, The Journal of protozoology.

[51]  T. Rowbotham.  Current views on the relationships between amoebae, legionellae and man. , 1986, Israel journal of medical sciences.

[52]  J. Hall,et al.  Bacterial endosymbionts of Acanthamoeba sp. , 1985, The Journal of parasitology.

[53]  T. Rowbotham.  Isolation of Legionella pneumophila from clinical specimens via amoebae, and the interaction of those and other isolates with amoebae. , 1983, Journal of clinical pathology.

[54]  T. Rowbotham,et al.  Preliminary report on the pathogenicity of Legionella pneumophila for freshwater and soil amoebae. , 1980, Journal of clinical pathology.

[55]  G. Lupașcu,et al.  Electron microscopic study of a pathogenic Acanthamoeba castellani strain: the presence of bacterial endosymbionts. , 1975, International journal for parasitology.

[56]  R. Mitchell,et al.  Implication of a marine ameba in the decline of Escherichia coli in seawater , 1969 .

[57]  W. Drozanski.  Fatal bacterial infection in soil amoebae. , 1956, Acta microbiologica Polonica.

[58]  B. Singh.  SELECTION OF BACTERIAL FOOD BY SOIL FLAGELLATES AND AMOEBAE , 1942 .