Spirochaetes

Spirochaetes are motile bacteria. They have very fine flagella attached to the cell surface, and the rotating action of these propel spirochaetes through the medium. Spirochaetes have a spiral body and twist through the medium. These are from the termite Incisitermes. They have got trapped in a bend of a length of a trachea from their host flagellate. The spirochaetes move by turning, and in this case all of the spirochaetes were imaged while moving synchronously. Small Tricercomitus cells are attached to the top of the tracheae. Phase contrast.

Leptospira observed in freshwater sediments in the vicinity of Broome, Western Australia in September 2003. This image was taken using phase contrast optics.   This work was supported by the Australian Biological Resources Study.

Herrera de Soria, Castille and Leon, Spain

Spirochaetes are motile bacteria. They have very fine flagella attached to the cell surface, and the rotating action of these propel spirochaetes through the medium. Spirochaetes have a spiral body and twist through the medium. These are from the termite Incisitermes. Many flagellates that are endobiotic in termites have bacteria attached to the outside. In many cases these are spirochaetes. They move actively and this can produce the propulsive force for the the eukaryote flagellate. Phase contrast.

Spirochaetes are motile bacteria. They have very fine flagella attached to the cell surface, and the rotating action of these propel spirochaetes through the medium. Spirochaetes have a spiral body and twist through the medium. Several different sized-spirochaetes can be seen in this image. From the termite Incisitermes. Very common inhabitants of the gut. Phase contrast.

Spirochaetes are motile bacteria. They have very fine flagella attached to the cell surface, and the rotating action of these propel spirochaetes through the medium. Spirochaetes have a spiral body and twist through the medium. This cell is from the termite Incisitermes. The bubble at one end is the start of spore formation. Phase contrast.

Category hierarchy: Biomes | Geology | Fossils & ArtifactsDescription: Trilobite fossil, an extinct marine invertebrate. Item originally from the United States.Capture device: Camera: Nikon D80Original date: 20080221Locality: Latitude: 3.743160000000000e+001; Longitude: -7.865689999999999e+001

An electron photomicrograph of two spiral-shaped Treponema pallidum bacteria.Created: 1969

Under a magnification of 201X, this scanning electron micrographic (SEM) image depicted a dorsal view of an unidentified engorged female tick, which had been extracted from the skin of a pet cat while in the process of obtaining its blood meal. Note the presence of some of the cat’s fur, along with some of its skin tissue in which the tick’s gnathosoma were still embedded. See PHIL 9972 and 9973 for additional, less magnified views of this scenario. It is from the basis capituli that the two spread pedipalps, and hidden skin-piercing hypostome and chelicerae emanate. On the dorsal surface of the basis capituli you’ll see two depressed areas known as the porose areas, through which secretions produced by dermal glands are released.Created: 2006

Treponema pallidum, darkfield preparation.Created: 1971

Under a low magnification of 100X, this scanning electron micrographic (SEM) image depicted a dorsal view of an unidentified engorged female tick, which had been extracted from the skin of a pet cat while in the process of obtaining its blood meal. Note the presence of some of the cat’s fur, along with some of its skin tissue in which the tick’s gnathosoma were still embedded. See PHIL 9972 and 9973 for additional, less magnified views of this scenario. It is from the basis capituli that the two spread pedipalps, and hidden skin-piercing hypostome and chelicerae emanate. On the dorsal surface of the basis capituli you’ll see two depressed areas known as the porose areas, through which secretions produced by dermal glands are released.Created: 2006

Category hierarchy: Animals | EchinodermsDescription: Example of a sea cucumber.Capture device: Camera: Canon Powershot A75Original date: 20030000

Category hierarchy: Biomes | Geology | Fossils & ArtifactsDescription: Trilobite fossil, an extinct marine invertebrate. Item originally from the United States.Capture device: Camera: Nikon D80Original date: 20080221Locality: Latitude: 3.743160000000000e+001; Longitude: -7.865689999999999e+001

Description: Deutsch: Borrelia duttoni in der Fluoreszenzfärbung mit Acridin-Orange. Date: 25 June 2006 (original upload date). Source: Referenzaufnahme des Benutzers Gleiberg. Author: Benutzers Gleiberg.

Description: English: The castor bean tick, Ixodes ricinus. A reddish female with a black male at her back, plus another male below. Date: 5 July 2020, 17:11:01. Source: Own work. Author: Jtrytin (Jarle Tryti Nordeide).

Description: Left to right: cryo-preserved Borrelia spp.; cryo-preserved Mycobacteria spp.; cryo-preserved Chlamydiae spp. Credit: NIAID. Date: 3 January 2013, 11:28. Source: Cryo-Preserved Bacteria. Author: NIAID.