单词 | plasmolysis |
释义 | plasmolysisn. Biology. Contraction of the cytoplasm of a plant cell with separation of the plasma membrane from the cell wall, due to the osmotic withdrawal of liquid into a medium of high concentration. ΘΚΠ the world > life > biology > biological processes > lysis > [noun] autodigestion1879 plasmolysis1883 cytolysis1896 phagolysis1898 autolysis1900 heterolysis1902 lysis1902 trypanolysis1905 chromatolysis1908 oncolysis1928 plasmolysability1950 induction1951 lysogenization1953 lysogenizing1961 1883 Q. Jrnl. Microsc. Sci. 23 151 (heading) On plasmolysis and its bearing upon the relations between cell wall and protoplasm. 1886 S. H. Vines Lect. Physiol. Plants iii. 39 Turgid cell..in 10 per cent. solution, shewing complete plasmolysis. 1937 S. F. Armstrong Brit. Grasses (ed. 3) xvi. 325 The broad or hairy leaves of Plantains, Daisies, etc. hold the salts to a much greater extent than the narrow or more erect grass leaves with the result that, especially in dry weather, they become seriously scorched through intense plasmolysis. 1964 J. Levitt in D. W. Newman Instrumental Methods Exper. Biol. xiii. 420 These very cells, with which the incipient plasmolysis method leads to difficulties, cannot have their osmotic potentials determined in any other way, and at least approximate values may be obtained plasmolytically. 1990 B. Swain Roses (BNC) 96 A method of lawn weed killing that literally sucks the sap out of leaves upon which it rests by reversing (plasmolysis) the principle (osmosis) by which plants absorb nutrient solutions from the soil. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < |
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