Century Dictionary and Cyclopedia
- n. The process of becoming or the state of being encysted. Specifically, in biol.: A process which goes on in protozoans, by which, the pseudopodia or other prolongations of the body being withdrawn, the animal assumes a spherical shape, and becomes coated with a comparatively tough resisting layer, which thus forms a cyst. The process is usually preliminary to reproduction, one of the consequences of encystment being the formation within of spore-masses or plastidules, which at length escape on rupture of the cyst, and take up an independent existence. In infusorians three kinds of encystment are distinguished, technically called protective, duplicative, and sporular.
- n. The formation of a cyst
- n. The process of becoming enclosed by a cyst
GNU Webster's 1913
- n. (Biol.) A process which, among some of the lower forms of life, precedes reproduction by budding, fission, spore formation, etc.
- n. (Zoöl.) A process by which many internal parasites, esp. in their larval states, become inclosed within a cyst in the muscles, liver, etc. See Trichina.
“It is common to all of the protozoa to develop forms which have great powers of resistance, this being due in some cases to encystment, in which condition a resistant membrane is formed on the outside, in others to the production of spores.”
“The encystment of the protoplasm (occurring under conditions upon which naturalists do not seem agreed ) is to all appearance protective from an unfavourable environment, but it is often a period of internal change as well, resulting in a segregation within the mass of numerous small units, followed by a breakup of the whole into these units.”
“Weismaun, encystment of protoplasm, 68; length of life and somatic cells, 96; origin of death, 83; tendency to early reproductiveness, 98.”
“Mycobacteria were further entrapped within amoebal cysts, and survived encystment as demonstrated by subculturing.”
“Tardigrades have five routes which they employ to enter latency: encystment, anoxybiosis, cryobiosis, osmobiosis and anhydrobiosis.”
“The deficient in the LLO-encoding hly gene L. monocytogenes strain failed to cause mortality among protozoa and to trigger protozoan encystment.”
“Zoospores ovate, apically bicUiate, escaping by a usually terminal mouth at the apex of a distinct papilla, and swarm - ing separately; after encystment germinating without a second swarming stage, i. e., monoplanetic.”
“I have not followed the zoospore from its encystment to its germination; but, as the spores germinate freely in cultures which contain no trace of empty mem - branes, such as are seen with germinating diplanetic spores, there can be no doubt of their monoplanetism.”
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