单词 | translocate |
释义 | translocaten. Chiefly Plant Physiology. A substance that is or has been moved by translocation, esp. within the phloem vessels of a plant. Cf. translocate v. 2. ΚΠ 1946 Ann. Bot. 10 328 In winter about one-third of the translocate went to the root, one-third to the stem, and the remaining third was distributed among the four small leaves. 1981 K. Schmitz in C. S. Lobban & M. J. Wynne Biol. Seaweeds xv. 547 The 14C-labelled substances in the translocate were the same as in the photosynthate, though with a slightly different percentage distribution of 14C. 2005 Plant Physiol. 138 2274/1 Almost 80% of the translocate from the parent plant and pod walls was incorporated into dry matter in the seed. This entry has been updated (OED Third Edition, March 2019; most recently modified version published online March 2022). translocatev. 1. a. transitive. To move or transfer (a person or thing) from one place to another; to displace (a person or thing). Frequently in passive. ΘΚΠ the world > space > place > placing or fact of being placed in (a) position > place or put in a position [verb (transitive)] > in different position changea1375 movea1382 shifta1400 skifta1400 transpose?1518 shiften1544 transplace1621 trans-situate1630 translocate1650 shuffle1694 mudge1823 relocate1829 translaya1861 to change around1871 1650 J. Rocket Div. cut in Pieces 21 And these very Three things are enumerated in that Catologue, only translocated. 1661 J. Godolphin Συνηγορος Θαλασσιος ix. 108 Although a surmize or suggestion should translocate Burdeaux into Islington, yet 'tis not to be gain-said but that the great Oracle of the Law asserts, That Things done without the Realm cannot be tryed within the Realm by the Oath of twelve men. 1767 tr. D. Cranz Hist. Greenland II. viii. 207 Near sixty baptized, without reckoning the unbaptized catechumens, were translocated out of this time into a happy eternity. 1831 Edinb. Lit. Jrnl. 26 Mar. 200/2 John has translocated his domicile, and become musical in his old days. 1856 Dublin Univ. Mag. July 21/1 A wilderness of stone..a veritable Arabia Petræa translocated to the wilds of Galway. 1887 Amer. Naturalist 21 944 The ribs have been translocated from the original position..to the neurapophyses. 1921 Logansport (Indiana) Morning Press 27 Aug. 10/4 As for the manufacturing industries, high freight rates are translocating industrial production nearer to raw materials and will end by depriving the railroads of all the tonnage they have worked so many years to build up. 1968 Irish Times 21 May 10/7 Now the Club is held at the new location of the Lyceum Theatre—translocated, as it were, after the reconstruction of London after the last war. 2005 Sunday Times of India 31 July 1/5 Some of these camps are makeshift and can quickly be translocated to other parts to escape international scrutiny. b. transitive. spec. To move or transfer (wild animals, birds, etc.) from one place to another, esp. as part of a wildlife conservation programme. ΚΠ 1950 Descr. Activities & Contemplated Future Programs Dep. Interior State Okla. 65 In addition to the buffalo and longhorns, elk, antelope, and wild turkey have been translocated at various times to this area. 1980 Cape Times 19 Aug. 5/3 The present objective is to translocate as many black rhino as possible to as many of their original areas. 2014 R. K. Smith & W. J. Sutherland Amphibian Conservation xiii. 189 Newts were translocated 100 km from a site in Kent to Cambridgeshire because of habitat destruction during a development project. c. intransitive. To move or travel from one place to another; to change location. ΘΚΠ the world > movement > move [verb (intransitive)] > change place or position flitc1175 passa1387 changec1390 skifta1400 shift1530 transmigrate1611 reshift1629 transfer1646 to turn over1851 reposition1947 translocate1975 1975 Italica 52 72 The strength infused into Silvestro by the Gran Lombardo will translocate to Silvestro's own grandfather. 1983 L. Onyshkevych in M. S. Seller Ethnic Theatre in U.S. xix. 525 These conditions provided motives for Ukrainians to translocate to the United States and organize their own social and cultural life. 2009 S. A. Keiler & M. A. Ghannoum in M. A. Ghannoum & J. R. Perfect Antifungal Therapy xv. 258 Increased population mobility through migration, recreational travel, as well as World War I allowed T[richophyton] rubrum to translocate to the Americas. 2. Biology. a. transitive. To transport (a substance, molecule, etc.) through the tissues of an organism or the membranes of a cell, esp. by an active process. Frequently in passive. Cf. translocation n. 2. ΘΚΠ the world > plants > by nutrition or respiration > [verb (transitive)] > circulate nutritive material translocate1893 1893 Chem. News 12 May 224/1 The leaf cells are necessarily supplied with an abundance of newly assimilated materials in the form of sugars, more, in fact, than can be easily made use of or translocated. 1931 E. 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. 1942 Brit. Med. Jrnl. 11 Apr. 461/2 Whipple and his school have demonstrated the ease with which plasma protein can be translocated from plasma to cells and from cells to plasma. 1976 Sci. Amer. Sept. 124/3 (advt.) When the proper rate is applied to the weeds' well-grown foliage, the compound is translocated throughout the plant. 1987 Jrnl. Cell Biol. 105 2906/1 CPY [sc. carboxypeptidase Y] cannot be translocated across mammalian membranes either in vivo or in vitro. 2017 Guardian (Nexis) 6 Sept. (Environment section) There is evidence that particles [sc. of microplastics] may even cross the gut wall and be translocated to other body tissues, with unknown consequences. b. intransitive. To be transported through the tissues of an organism or the membranes of a cell; to undergo translocation (translocation n. 2). ΚΠ 1958 Weeds 6 370 The herbicide is able to penetrate and translocate readily to all parts of the plant. 1958 Radiation Res. 9 443 Most in vivo-produced Th228 atoms remain at their sites of production (radium deposition sites) rather than translocate to other sites. 1977 Lancet 2 July 15/2 Others..had demonstrable abnormalities of receptor function, such as failure of the receptor hormone complex to translocate to the nucleus. 1990 Science 10 Aug. 635/1 EF-Tu,..once activated, binds an aminoacylated transfer RNA (tRNA) and translocates to the ribosome. 2012 MailOnline (Nexis) 13 Aug. (Gardening section) Perennial weeds can be ‘touched’ or spot treated with glyphosate which will translocate to the roots and kill the plant. 2015 Clin. Psychol. Sci. 3 966/2 In cases where the mucosal barrier is compromised by the loosening of the tight junctions, gram-negative bacteria may translocate from the gut into various areas outside of the intestine. 3. transitive. Cell Biology and Genetics. To transfer (a part of a chromosome) to a new position, esp. on a non-homologous chromosome. Chiefly in passive. Occasionally also intransitive: (of a gene or portion of a chromosome) to change position. Cf. translocated adj. 3, translocation n. 3. ΘΚΠ the world > life > biology > biological processes > genetic activity > [verb (transitive)] > establish genetic trait as permanent > transfer translocate1930 transduce1952 1930 Amer. Naturalist 64 245 Now this mottled ‘factor’ lies in a chromosome segment that has been displaced—translocated. 1949 C. D. Darlington & K. Mather Elements of 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. 1975 Nature 3 Jan. 13/3 Genes translocated to positions close to heterochromatin seem in many species to become inactivated. 1989 Lancet 1 Apr. 695/2 The..gene translocates to the heavy-chain immunoglobulin. 2015 D. Syndercombe Court & D. P. Kelsall in J. Naish & D. Syndercombe Court Med. Sci. (ed. 2) v. 156/2 Copies of parts of chromosome 21 are translocated to other chromosomes. Derivatives transloˈcatable adj. able to be translocated. ΘΚΠ the world > life > biology > biological processes > genetic activity > [adjective] > changes or actions of genes or chromosomes > transfer > translocation translocational1905 translocatable1915 translocated1924 1915 A. L. Whiting Biochem. Study Nitrogen in Certain Legumes 521 This process repeated itself until there was not nitrogen enough left in a translocatable form to give green color to another leaf. 1975 Nature 4 Dec. 384/1 Discrete translocatable elements (transposons) may constitute relatively common genetic units in bacteria. 1976 Ann. Rev. Microbiol. 30 517 One must also be aware of the prevalence of insertion sequences..and the newly discovered translocatable sequences..discovered in enteric microorganisms. 2012 Jrnl. Exper. Bot. 63 2059/1 Other sources of translocatable soluble carbohydrate exist in the plant kingdom. This entry has been updated (OED Third Edition, March 2019; most recently modified version published online March 2022). < n.1946v.1650 |
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