| 释义 |
karyotin Biol.|ˈkærɪəʊtɪn|
Also -ine.
[a. G. karyotin (H. Lundegård 1910, in Svensk bot. Tidskr. IV. 177), f. karyo- karyo- + -tin (after chromatin).]
The stainable material of a cell nucleus; the substance of which the nuclear reticulum is composed.
1925E. B. Wilson Cell (ed. 3) i. 90 Such considerations led Lundegårdh ('10) to propose that the term ‘chromatin’ be replaced by ‘karyotin’ (caryotin), the substance thus designated appearing in either a basichromatic or an oxyphilic phase. 1934L. W. Sharp Introd. Cytol. (ed. 3) iii. 55 Only future research can decide whether karyotin (‘chromatin’ in the wide sense) is a true chemical compound. 1948W. Andrew tr. E.D.P. de Robertis's Gen. Cytol. vii. 138 Other authors admit the existence of two distinct phases: the karyolymph, which is considered as a colloid sufficiently stable to be precipitated only with acids and fixatives, and the karyotin, a more labile and complex colloid dispersed in the karyolymph, which would precipitate with great facility. 1966D. H. Kramsch tr. Grundmann's Gen. Cytol. ii. 66 The nucleus was..regarded as a solution, a sol in which little droplets, the so-called karyotine droplets, representing a somewhat more solid ‘phase’, were dispersed. |