单词 | statolith |
释义 | > as lemmasstatolith statolith n. Brit. /ˈstatə(ʊ)lɪθ/ , U.S. /ˈstædəˌlɪθ/ (a) Zoology a calcareous particle in the statocyst of an invertebrate; cf. otolith n. 1; (b) Botany each of a number of specialized mobile starch grains found in certain plant cells (esp. of the root cap), thought to be involved in the perception of gravity.ΘΚΠ the world > animals > invertebrates > bodies or parts > [noun] > statolith statolith1892 statocone1910 the world > life > biology > substance > cell > cell organelle or contents > [noun] > other organelles or contents raphide1831 body1839 raphid1863 mucigen1874 cell sap1875 globoid1875 raphis1879 pyrenoid1883 mucinogen1884 plastid1885 molluscum corpuscle1886 hyalosome1889 molluscum body1892 statolith1892 dictyosome1893 centrosome1895 Nissl body1898 Nissl granule1898 Nissl substance1899 archespore1901 blepharoplast1907 liposome1910 statocone1910 kinetosome1912 Golgi body1916 kinetoplast1925 lipochondrion1936 microsome1943 kappa1945 Pappenheimer body1947 microbody1954 lysosome1955 siderosome1957 ribosome1958 melanosome1961 cisterna1962 microtubule1962 plasmalemmasome1962 phagolysosome1963 informosome1964 monosome1964 mucocyst1965 peroxisome1965 rhoptry1967 spectrin1968 virosome1970 1892 Arch. Otol. 21 330 The otoliths, having nothing to do with the function of hearing (which seems to be absent in these animals), are called statoliths by the author. 1903 F. Darwin in Nature 16 Apr. 571/2 The Statolith Theory of Geotropism. 1955 Sci. News 36 92 Even plants which have no statoliths respond to gravitational stimuli. 1962 D. Nichols Echinoderms vi. 83 These are tiny fluid-filled spheres containing calcareous statoliths, the differential movement of which is registered in special nerves. 1969 Nature 28 June 1229/1 Starch statoliths are mobile starch grains found in almost all plant organs that respond to gravity. 1975 Nature 2 Oct. 380/2 Statoliths of at least one species of cephalopod are composed of aragonite, a stable form of calcium carbonate. 2002 New Scientist 19 Jan. 108/1 (advt.) Gastropod statoliths: tools for evaluating growth in scavenging and carnivorous neogastropods. < as lemmas |
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