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Ribadelago, Castille and Leon, Spain
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El Quintanar, Castilla y Len, Espaa
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Hoyo de Manzanares, Madrid, Spain
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Casas de Fadoncino, Castille and Leon, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Herrera de Soria, Castille and Leon, Spain
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Anisonema es una alga plida con vuelo de cometa. Prima cercana de las verdes euglenas, cambi la luz del Sol por los restos y detritus de los que se alimenta en su vuelo acutico. Un vuelo estable y sostenido entre la inmensidad de nieblas y grumos, cerca de los fondos donde, poco a poco, van depositndose posos que son trocitos de historia de infinitas vidas que naufragaron para volver a vivir.Hoy Anisonema se ha sumergido en las profundidades abisales a poco ms de un palmo de la superficie del agua donde se riza el oleaje en espuma blanca y roza las yemas de los dedos de una cianobacteria, Oscillatoria que hoy pinta con su cuerpo de tallo verde de bamb las aguas saladas en las que se une un ro con la mar.Del carro mgico de Anisonema tiran corceles invisibles. Lo llevan de paseo por esos anchos caminos que como en el cielo tambin existen en el agua infinita. Siempre parece seguir un trazado previsible, y con marcha segura avanza en el agua dejando un rastro de cola de cometa que ancla su cuerpo en el aire acutico. Anisonema es uno de los flagelados ms comunes en los fondos donde se acumulan sedimentos. Inconfundible por esa marcha equilibrada y segura, son dos los flagelos que hacen que este protozoo plido, primo de las euglenas, avance con ese aplomo de navegante experimentado. Su flagelo delantero es el motor, que como ltigo se amarra al agua y tira de ella ganando terreno. El flagelo posterior, mucho ms largo y como una rmora, estabiliza el cuerpo de Anisonema para que no tiemble en su avance, haciendo el mismo efecto que la cola de una cometa que trepa hacia el cielo.Aqu, sobre el agua, el carro mgico de Anisonema corre, nada y vuela al mismo tiempo, tirado por esos corceles invisibles en una gota de la siempre toma la vida..El flagelado que nos visita hoy, recuerda mucho a Anisonema acinus pero es de cuerpo ms estrecho, presenta un surco ventral que se abre sobre la boca y se alimenta de materia orgnica. Todas las especies del gnero viven en aguas de muy distinto tipo, desde stas saladas a las limpias de montaa o las cargadas de detritus, y siempre lo hace con la seguridad de una cometa a la que el viento no altera.La fotografa tomada con Isabel Lpez de Munain ha sido realizada a 400 aumentos empleando la tcnica de contraste de fase y procede de unas muestras tomadas con Miguel Rodrigues, David Salvador y Andrs Blanco el 4 de enero de 2017 en la Lagoa das Garas una zona de marisma en la costa de Armao de Pra, en las inmediaciones de Vila Vita, en el precioso Algarve portugus.
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Caada del Hoyo, Castilla-La Mancha, Espaa
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Tritrichomonads are small trichomonads (8-22 µm) with three anterior flagella and a recurrent flagellum forming a conspicuous undulating membrane with a posterior free portion. Costa stout or slender sustaining the undulating membrane; axostyle well developed; sausage-shaped parabasal. At the time of writing, there are about 20 species living in the intestinal tract of rodents, birds, reptiles and amphibians one species T. foetus is a parasite of the uro-genital tract of bovines. This image of Tritrichomonas foetus parasitic from uro-genital tract of the cattle (cows). It has three anterior flagella, a recurrent flagellum forming an undulating membrane with a free posterior part, a thick axostyle (immunofluorescence).
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Heteramoeba (het-err-a-me-ba) a naked heterolobose amoeba, distinguished from other types of naked amoebae with lobose pseudopodia largely by ultrastructural features, but trophic heterolobose amoebae tend to form their pseudopodially suddenly rather than progressively. This is a cyst. Phase contrast.
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Monocercomonoides are small oval to pyriform oxymonad flagellates (5-15 µm) with four flagella separated in two pairs, one trailing flagellum. Anterior large nucleus capped with a pelta. The axostyle originates from a preaxostyle stretched between the two pairs of flagellar base, it traverses the cell and protrudes posteriorly. A thin fiber or funis follows the adhering zone of the recurrent flagellum. Phagocytoses wood particles and bacteria. Occurs as endocommensal in vertebrates and invertebrates gut such as rumen, caecum of rodents, gut of termites, larvae of xylophagous insects. This species (uniddentified) from Porotermes adamsoni (phase contrast).
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Scanning electron micrograph.
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Stephanopogon apogon (steff-anne-owe-poe-gone) is a marine genus of uncertain affinities and include a small handful of species. Cells are dorso-ventrally flattened, with a wide anterior mouth which may or may not have some barbs. It moves by using flagella which are laid out in longitudinal rows. For a long time erroneously considered to be a primitive ciliate (distinguished from real ciliates because it does not have macronuclei and micronuclei). This encysting cell can be seen to have several conventional nuclei with central nuceoli. Eats diatoms and detritus. Phase contrast.
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Adjacent thin sections thropugh a kinety on the ventral surface of this 'flagellate'. Ventral is to the top of the image.
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Euglenid without chloroplasts, highly metabolic, two flagellae, one of them trailing. More details in ZIP archive. Collection from sptagnum pond Dosenmoor near Neumuenster (Schleswig-Holstein, Germany). Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Bodo curvifilus Griessmann, 1913. Bodo cells that are oval or bean-shaped. The cells are 5 to 8 microns long, flattened, and pliable. The two flagella are unequal in length and insert subapically and to one side in a small pocket. The anterior flagellum is as long as the cell, is curved and beats slowly with a paddling motion. The trailing posterior flagellum is acronematic and is about 2.5 to 3 times the length of the cell. Cells normally glide but also may have a squirming movement.
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Centers for Disease Control/Division of Parasitic Diseases and Malaria
EOL staff
Life cycle of the flagellate Pentatrichomonas hominisPentatrichomonas hominis is a trichomonad flagellate with a worldwide distribution. Only trophozoites are shed in feces (1) as there is no known cyst stage for this species. Infection occurs after the ingestion of trophozoites in fecally-contaminated food or water or on fomites (i.e., other non-living objects or substances that can transmit them) (2). These organisms reside in the large intestine, where they are regarded as commensals (i.e., benefiting from but not harming their host) and are not known to cause disease in humans.From
Centers for Disease Control Parasites and Health website
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Madrid, Madrid, Spain
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Madrid, Madrid, Spain
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Casas de Fadoncino, Castille and Leon, Spain
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Quinones Del Molino, Madrid, Spain
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Galende, Castile and Len, Spain
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San Fernando de Henares, Madrid, Spain
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Logrono, La Rioja, Spain