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单词 plastome
释义

plastomen.

Brit. /ˈplastəʊm/, U.S. /ˈplæˌstoʊm/
Forms: 1900s– plastom, 1900s– plastome.
Origin: A borrowing from German. Etymon: German Plastom.
Etymology: < German Plastom (O. Renner 1929, in Handb. der Vererbungswissenschaft II. a. 32) < plast- (in Plastid plastid n.) + -om (in Genom genome n.). Compare earlier plasmon n.2
Genetics.
The total genetic information in the plastids of a cell.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > [noun] > genetic information storage
code script1915
code1944
plastome1954
coding1956
triplet code1957
1954 P. Michaelis in Adv. Genetics VI. 290 I propose..with Renner (1929) to include all extranuclear hereditary elements of the cell in the term plasmon, and to subdivide this into (1) the cytoplasmon, that is, the elements of the cytoplasm, and (2) the plastom, that is, the hereditary elements of the plastids, etc.
1967 J. T. O. Kirk & R. A. E. Tilney-Bassett Plastids ix. 277 There are as many as five genetically different plastoms within the subgenus Euoenothera.
1976 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) 401 Plastome and plasmone mutations have been insufficiently studied..but their importance for evolution should not be underestimated.
1993 Systematic Bot. 18 319/1 Plastomes of this core group mirror its morphological distinctiveness, forming a well-supported clade.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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n.1954
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