Endomixis

endomixis

[¦en·dō¦mik·səs] (invertebrate zoology) Periodic division and reorganization of the nucleus in certain ciliated protozoans.

Endomixis

periodic nuclear reorganization in certain infusorians. The phenomenon was discovered in 1914 in Paramecium aurelia by the American scientists L. Woodruff and R. Erdmann, who described destruction of the macronucleus and two-stage division of the micronucleus during endomixis. Some of the products of division are converted without merging (fertilization) into macronuclei, and some into micronuclei. The rest are destroyed. It was subsequently shown that restructuring of the nucleus does not exist in this form in infusorians; merging of the nuclei precedes differentiation of the macronuclei and micronuclei (as in autogamy). Consequently, endomixis is a type of sexual process.

单词	endomixis
释义	endomixis endomixis (ˌɛndəʊˈmɪksɪs) n (Biology) the reorganization of certain nuclei with some protozoa en•do•mix•is (ˌɛn doʊˈmɪk sɪs) n. a periodic reorganization of the cell nucleus in certain ciliated protozoans. [1914] Endomixis endomixis [¦en·dō¦mik·səs] (invertebrate zoology) Periodic division and reorganization of the nucleus in certain ciliated protozoans. Endomixis periodic nuclear reorganization in certain infusorians. The phenomenon was discovered in 1914 in Paramecium aurelia by the American scientists L. Woodruff and R. Erdmann, who described destruction of the macronucleus and two-stage division of the micronucleus during endomixis. Some of the products of division are converted without merging (fertilization) into macronuclei, and some into micronuclei. The rest are destroyed. It was subsequently shown that restructuring of the nucleus does not exist in this form in infusorians; merging of the nuclei precedes differentiation of the macronuclei and micronuclei (as in autogamy). Consequently, endomixis is a type of sexual process.
随便看	ductus glandulae bulbourethralis ductus hemithoracicus ductus hepaticus ductus hepaticus communis ductus hepaticus dexter ductus hepaticus sinister ductus incisivus ductus lactiferi ductus lingualis ductus lobi caudati dexter hepatis ductus lobi caudati sinister hepatis ductus longitudinalis epoophori ductus longitudinalis epoöphori ductus lymphaticus ductus lymphaticus dexter ductus mesonephricus ductus nasolacrimalis ductus pancreaticus ductus pancreaticus accessorius ductus paramesonephricus ductus paraurethrales ductus parotideus ductus perilymphaticus ductus pharyngobranchialis iii ductus pharyngobranchialis iv

endomixis

endomixis

en•do•mix•is

Endomixis

endomixis

Endomixis