单词 | melanosome |
释义 | melanosomen. Physiology. An organelle of melanocytes in which melanin is synthesized and stored. ΘΚΠ 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 1961 M. Seiji et al. in Jrnl. Investigative Dermatol. 36 251/2 Because the melanin granule has been shown by electronmicroscopy to be structurally distinct from mitochondria, to be unique in its localization within the cytoplasm of mammalian melanocytes, and to contain a specialized metabolic pathway that converts tyrosine to melanin, we would like to suggest that during its enzymically active stages it be called a melanosome... The term ‘melanin granule’ could be reserved for the mature, fully melanized particle which has lost its tyrosinase activity and is no longer confined to the cytoplasm of the melanocyte. 1973 Nature 26 Oct. 436/3 The melanocyte's contribution [to pigmentation] begins with the synthesis of melanosomes, and the oxidation of tyrosine to melanin. 1989 Jrnl. Royal Soc. Med. 82 539/1 Melanogenesis is restricted to the melanosomes, controlled by tyrosinase, and postdopa-oxidase regulators. This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022). < |
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