| 释义 |
translocate, v.|ˈtrɑːnsləʊkeɪt, træns-|
[f. trans- + locate. Probably suggested by next, which was used much earlier.]
1. a. trans. To remove from one place to another; to displace, dislocate. Esp. in reference to the transfer of wild animals.
a1832Bentham Lang. Wks. 1843 VIII. 325/1 Add, upon the model of transfer, and transfuse, translocate. 1887Amer. Nat. Oct. 944 The ribs have been translocated from the original position..to the neurapophyses. 1899Syd. Soc. Lex., Translocate, the same as Dislocate. 1971Nature 6 Aug. 374/2 As long ago as 1928 the possibility of translocating rhino from Zululand to other parts of their former range was suggested by the naturalist Herbert Lang. 1980Cape Times 19 Aug. 5/3 The present objective is to translocate as many black rhino as possible to as many of their original areas.
b. Veg. Physiol. To subject to translocation.
1911in Webster. 1931E. C. Miller Plant Physiol. xii. 696 It appears that the mineral nutrients absorbed by the roots on one side of a plant are, in a large measure, translocated to and used by the trunk, limbs, and leaves directly above them. 1959New Scientist 12 Nov. 931/3 Substances may be translocated through the fungal threads and be accumulated into the fungal tissue which surrounds the root. 1976Sci. Amer. Sept. 124/3 (Advt.), When the proper rate is applied to the weeds' well-grown foliage, the compound is translocated throughout the plant.
2. Genetics. To move (a portion of a chromosome) to a new position, esp. on a non-homologous chromosome.
1936Discovery Sept. 269/1 In one of the new races the left ends were removed from both the second chromosomes and translocated to a third chromosome. 1949Darlington & Mather Elem. Genetics v. 102 A piece may be taken out of a chromosome and inserted or translocated wherever else the same or another chromosome may be broken. 1975Nature 3 Jan. 13/3 Genes translocated to positions close to heterochromatin seem in many species to become inactivated.
3. intr. To move, change location.
1977Lancet 2 July 15/2 Others..had demonstrable abnormalities of receptor function, such as failure of the receptor hormone complex to translocate to the nucleus.
Hence transloˈcated ppl. a.; transloˈcatable a., able to be translocated.
1930Jrnl. Genetics XXII. 313 Offspring..will then have an excess (triple amount) of genes of the sort present in the proximal portion of the translocated piece. 1975Nature 4 Dec. 384/1 Discrete translocatable elements (transposons) may constitute relatively common genetic units in bacteria. 1976Ann. Rev. Microbiol. XXX. 517 One must also be aware of the prevalence of insertion sequences..and the newly discovered translocatable sequences..discovered in enteric microorganisms. 1980R. P. Wagner et al. Introd. Mod. Genetics x. 289/2 The two normal chromosomes move to one pole while the two translocated chromosomes go to the other. |