Fornicata

Life cycle of Chilomastix mesnili The resistant cyst stage in the life cycle of Chilomastix is responsible for transmission. Both cysts and trophozoites can be found in the feces (diagnostic stages) (1). Infection occurs by the ingestion of cysts in contaminated water or food or by the fecal-oral route (via hands or fomites, i.e., inanimate objects such as towels that transmit infectious organisms to a host) (2). In the large (and possibly small) intestine, excystation releases trophozoites.From Centers for Disease Control Parasites and Health website.

Summary[edit] Description: English: Cysts of Giardia in Iodine wet mount of feces at magnification of 1600X. Date: 31 August 2021, 10:40:55. Source: Own work. Author: Ajay Kumar Chaurasiya.

Description: Giardia lamblia. Date: 24 June 2011, 19:44. Source: Giardia lamblia. Author: Nathan Reading from Halesowen, UK.

Summary[edit] Description: worm infections, humans. Date: 14 April 2014, 12:07. Source: Chilomastix mesnili. Author: Iqbal Osman1 from singapore.

Summary[edit] Description: Deutsch: Dysnectes brevis, Trophozoit. Date: 2008. Source: http://tolweb.org/images/Dysnectes_brevis/121406. Author: Naoji Yubuki.

Life cycle of Enteromonas hominisBoth cysts (dormant stage) and trophozoites (active stage) of Enteromonas hominis are shed in feces. Infection occurs after the ingestion of cysts in fecal-contaminated food or water, or on fomites (inanimate objects or substances capable of transferring pathogens). In the large (and possibly small) intestine, excystation releases trophozoites. Enteromonas hominis resides in the large intestine, where it is regarded as a commensal (benefiting from its host but doing no harm) and is not known to cause disease.From Centers for Disease Control Parasites and Health website.

Description: English: A scanning electron micrograph of the surface of the small intestine of a gerbil infested with Giardia sp. protozoa. The intestinal epithelial surface is almost entirely obscured by the attached Giardia trophozoites. Date:. Source: Public Health Image Library (PHIL) -- image #11632. Author: Dr. Stan Erlandsen (1988).

Whole-cell reconstruction model showing relationships between cytoskeletal elements. The Video starts with the raw data, then transitions into the modeled data created by IMOD [56] . The ventral portion of the cell contains most of the cytoskeletal elements—the ventral disc (VD), median body (MB), and 4 pairs of flagella (anterior flagella, AFL; caudal flagella, CFL; posterior-lateral flagella, PFL; ventral flagella, VFL) as well as the two nuclei (N). The bulk of the cytoskeletal elements are at the ventral portion of the cell—the attachment site to the host microvili. Scale bar, 2 µm.

Summary[edit] Description: Deutsch: Electron micrograph of Chilomastix cuspidata (excavates, retortamonads). The "9+2" axoneme and the enclosing membrane can be seen, the flagellum has two vanes. Date: Unknown dateUnknown date. Source: : This image is uploaded as image number 2258 at Tree of Life Web Project (tolweb.org).This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information.. Author: David J. Patterson.

Summary[edit] Description: English: Trophozoites of Giardia lamblia (aka G. intestinalis and G. duodenalis) grown in culture and stained with Giemsa. 100x magnification. Date: 8 May 2014. Source: Marie Lipoldova (2014). "Giardia and Vilém Dušan Lambl". PLoS Neglected Tropical Diseases. Volume 8; Issue 5. https://doi.org/10.1371/journal.pntd.0002686. Figure 2, Panel A. Author: Photo by Eva Nohýnková, Department of Tropical Medicine, 1st Faculty of Medicine, Charles University in Prague and Hospital Bulovka, Czech Republic. Image in paper by Marie Lipoldova, Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic.

Tomographic reconstruction of 3 serial-montaged sections of a Giardia trophozoite. Each slice is 3 nm in the Z-plane. The transition zone between sections looks like a jump. Anterior flagella, AFL (purple); caudal flagella, CFL (cyan); posterior-lateral flagella, PFL (blue); ventral disc microtubules, MT (white); microribbons, MR (green); dense bands, DB; supernumerary microtubules, SMT (yellow). Margin-facing and axis-facing sides are shown for orientation. This volume is about ∼11 µm 3 of the entire disc, which has a volume of ∼54 µm 3 . Scale bar, 500 nm.

Summary[edit] Description: English: Giardia in Methylene blue wet mount of human feces. Date: 31 August 2021, 10:34:39. Source: Own work. Author: Ajay Kumar Chaurasiya.

Summary[edit] Description: English: Giardia intestinalis (Giardia intestinalis ). Optical microscopy technique: Negative phase contrast. Magnification: 6000x (for picture width 26 cm ~ A4 format).Čeština: Giardia (Giardia intestinalis ). Mikroskopická technika: Negativní fázový kontrast. Zvětšení: 6000x (při šířce obrázku 26 cm ~ A4 formát). : This image comes from the archive of Josef Reischig and is part of the 384 pictures kindly donated by the authorship heirs under CC BY SA 3.0 license as a part of Wikimedia Czech Republic's GLAM initiative. čeština ∙ English ∙ македонски ∙ +/−. Source: Author's archive. Author: Doc. RNDr. Josef Reischig, CSc..

Summary[edit] Description: English: positive Giardia-Quicktest Deutsch: positiver Giardien Schnelltest. Date:. Source: Own work. Author: Uwe Gille.

Summary[edit] Description: English: Giardia intestinalis - trophozoite. In the microscopic image, the following structures are well visible: nucleus, flagella, parabasal body (dark in the middle) and axonemes. Date: 7 April 2021, 15:54:56. Source: Own work. Author: Stefan Walkowski.

Summary[edit] Description: English: Cysts of Giardia lamblia in saline wet mount of feces microscopy at 1600X magnification. Date: 31 August 2021, 10:16:47. Source: Own work. Author: Ajay Kumar Chaurasiya.

Summary[edit] Description: English: Giardia lamblia seen in a cytologic preparation (cytospin of formalin from small bowel biopsy of a patient with giardia). Date: 7 August 2011. Source: Own work. Author: Jerad M Gardner, MD. Other versions: Overview.

Summary[edit] Description: English: Composite of images already on Wikimedia Commons: File:CESimon_Giardia_Trophozoite.jpg File:CESimon Giardia Cyst.jpg. Date: 20 June 2019, 01:36:16. Source: Own work. Author: Ajpolino.

Whole-cell reconstruction of an attached Giardia intestinalis trophozoite using 3View®. Each slice was obtained using a microtome inside a scanning electron microscope. After each section was removed, a backscatter-signal scanning electron micrograph was recorded [18] . IMOD [56] was used to model important features of the cytoskeleton and attachment sites. Each slice is 70 nm. The majority of organelles are visible with this method: Plasma membrane (grey), median body (orange), nuclei (brown), ventral disc (green), anterior flagella (purple), caudal flagella (cyan), posterior-lateral flagella (blue), and ventral flagella (magenta). Near the ventral portion of the cell, important components of attachment are seen (bare area, lateral crest, lateral shield). Scale bar, 2 µm.

Summary[edit] Description: English: Drawing by C. E. Simon of a Giardia trophozoite obtained from individuals from Maryland, South Carolina, and a U.S. soldier in France. Preparations were fixed in Schandinn's solution, and stained with Heidenhain's haematoxylin. Flagella were stained with eosin-methylene azure mixtures or Mann's eosin-methyl blue mixture. Date: 1 July 1921. Source: Charles E. Simon (July 1921). "Giardia Enterica: A Parasitic Intestinal Flagellate of Man." in the American Journal of Epidemiology, Volume 1, Issue 4, Pages 440-491. DOI: 10.1093/oxfordjournals.aje.a118047. Author: Charles E. Simon, Johns Hopkins University School of Hygiene and Public Health, Department of Medical Zoology.

Cicle biològic de Giardia lamblia en català

Summary[edit] Description: English: Microscopic image of Giardia intestinalis in a fecal smear from a dog. Stained with Diff-Quick, oil immersion. Deutsch: Lichtmikroskopische Aufnahme von Giardia intestinalis in einem Hundekotpräparat. Gefärbt mit Diff-Quick, Ölimmersion. Date: 16 November 2008. Source: Own work. Author: Kalumet.

This digitally-colorized scanning electron micrograph (SEM) depicted a Giardia lamblia protozoan that was about to become two, separate organisms, as it was caught in a late stage of cell division, producing a heart-shaped form. The protozoan Giardia causes the diarrheal disease called giardiasis. Giardia species exist as free-swimming (by means of flagella) trophozoites, and as egg-shaped cysts. It is the cystic stage, which facilitates the survival of these organisms under harsh environmental conditions. The cyst is considered the infective form, and disease is often transmitted by drinking contaminated water. As depicted in these SEMs, in the intestine, cysts are stimulated to liberate trophozoites. Cysts can be shed in fecal material, and can, thereafter, remain viable for several months in appropriate environmental conditions. Cysts can also be transferred directly from person-to-person, as a result of poor hygiene.

Summary[edit] Description: English: Drawing by C. E. Simon of a Giardia cyst obtained from individuals from Maryland, Washington DC, and someone infected in Brazil. Preparations were fixed in Schandinn's solution, and stained with Heidenhain's haematoxylin. Flagella were stained with eosin-methylene azure mixtures or Mann's eosin-methyl blue mixture. Date: 1 July 1921. Source: Charles E. Simon (July 1921). "Giardia Enterica: A Parasitic Intestinal Flagellate of Man." in the American Journal of Epidemiology, Volume 1, Issue 4, Pages 440-491. DOI: 10.1093/oxfordjournals.aje.a118047. Author: Charles E. Simon, Johns Hopkins University School of Hygiene and Public Health, Department of Medical Zoology.