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Blepharisma Falcatum
''Blepharisma'' is a genus of unicellular ciliate protists found in fresh and salt water. The group includes about 40 accepted species, and many sub-varieties and strains. While species vary considerably in size and shape, most are easily identified by their red or pinkish color, which is caused by granules of the pigment blepharismin. All members of the genus possess a long series of membranelles on the left side of the oral groove, and an "undulating membrane" (a structure resembling a flap, scarf or small sail, composed of long cilia fused together as a single sheet) on the right side of the peristome, toward the posterior. Certain species of ''Blepharisma'' have served as model organisms for scientific research. Since some varieties are easily cultured and readily available from scientific supply houses, they are a common object of study in school science classes. Appearance ''Blepharisma'' may be as small as 50 micrometres in length, or as large as 1 mm (though nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blepharisma Japonicum
''Blepharisma japonicum'' is a species of protozoan that can be found either in water or soil in Japan. Description The body of an organism is elongated and ovoided. It has a curved anterior apex that is over the peristome. It has a cytostome which is a two-layered undulating membrane, on the right front edge, and also contractile vacuole A contractile vacuole (CV) is a sub-cellular structure (organelle) involved in osmoregulation. It is found predominantly in protists and in unicellular algae. It was previously known as pulsatile or pulsating vacuole. Overview The contractile va ... with cytopyge terminal. It is either brown or rose-coloured. Conjugation ''Blepharisma japonicum'' produces sexual pheromones that promote conjugation. There are two mating types (I and II), each type excreting a specific pheromone (termed gamone 1 and gamone 2, respectively). When sexually mature mating-type I cells are moderately starved, they autonomously produce and secrete gamone I. Gam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
