| 释义 |
ommatin Biochem.|ˈɒmətɪn|
Also -ine.
[a. G. ommatin (E. Becker 1939, in Biol. Zentralbl. LIX. 622), f. Gr. ὄµµα, ὄµµατ- eye: see -in1.]
Any of the group of ommochromes characterized by weaker colours, less stability to alkalis, and lower molecular weights as compared with the ommins.
1940Biol. Abstr. XIV. 1238/1 The 2 eye pigments [of Ephestia] are typical of those found among insects. The dark red or brown ommines occur in Lepidoptera, Hymenoptera, Coleoptera, Hemiptera Heteroptera, and in the nematocerous Diptera. The more weakly colored ommatines are found in the cyclorrhaphous Diptera, Odonata, and Orthoptera. 1965[see ommochrome]. 1969R. F. Chapman Insects vii. 109 Tyndall blues are rare in insects, but the blue of dragonflies is produced in this way, the dark background being provided by a brown-violet ommatin. 1975D. G. Cochran in Candy & Kilby Insect Biochem. iii. 237 Storage of large quantities of 3-hydroxykynurenine occurs in vesicles or dilations of the endoplasmic reticulum of tubule cells [of Drosophila], and, at least in certain mutants, it is converted into ommatins and ommins. |