| 释义 |
Feulgen Cytology.|ˈfɔɪlgən|
The name of R. J. Feulgen (1884–1955), German biochemist, used attrib. or occas. in the possessive to denote the methods and materials he used, and the reaction involved, in preferentially staining cell organelles containing DNA, esp. chromosomes; so Feulgen reaction, Feulgen solution, Feulgen stain (also as vb.), Feulgen test, etc. Also in related phrases as Feulgen-positive, Feulgen-negative, respectively staining, or not staining, by his technique. Also absol.
1928R. J. Ludford in Proc. R. Soc. B. CII. 402 By Feulgen reaction no chromatin can be detected in either the oxyphil or basophil staining nucleoli. 1929McClung & Heuser in C. E. McClung Handbk. Microscop. Techn. xi. 483 (heading) Feulgen's Stain... Recently Feulgen has presented a method which he considers capable of indicating chromatin by a specific reaction. 1941Bot. Rev. VII. 442 A long list of Feulgen tests..shows that there are many plant nuclei that give a negative reaction, as well as those that are positive. Ibid. 443 There are no indications what the chromosome nucleic acids may be in the plants that react Feulgen-negative. 1952J. D. White in G. H. Bourne Cytol. & Cell Physiol. (ed. 2) v. 192 It has been generally believed that the Feulgen reaction (staining with leuco-basic fuchsin after hydrolysis) is specific for desoxyribose nucleic acid. 1954Nature 1 May 828/2 In mature pollen grains..the generative nucleus is Feulgen-positive while the vegetative nucleus gives a negative reaction. 1956Nature 11 Feb. 272/1 Weakly Feulgen-staining segments. 1965A. K. & A. Sharma Chromosome Techniques v. 116 Feulgen solution or, more precisely, fuchsin sulphurous acid is prepared from the dye, basic fuchsin. 1968Brit. Med. Bull. XXIV. 260/2 Specimens stained with dyes such as orcein and Feulgen. |