| 单词 | feulgen-negative |
| 释义 | > as lemmasFeulgen-negative Used attributively or occasionally in the possessive to denote the methods and materials used by Feulgen, 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. ΘΚΠ the world > life > biology > substance > staining quality of substance > [adjective] basophil1890 neutrophil1890 neutrophilic1893 oxyphil1893 oxyphilous1893 basophilic1894 basophilous1894 metachromatic1894 polychromatophilic1897 polychromatophil1898 chromophil1899 chromophilic1899 chromophobic1899 orthochromatic1899 polychromatic1899 pycnomorphous1899 fuchsinophil1900 neutrophilous1900 carminophilous1901 chromatoid1901 oxyphilic1901 pyknotic1902 sudanophil1902 chromaffin1903 metachromic1908 chromophobe1909 phaeochrome1909 sudanophilic1909 trachychromatic1909 polychromasic1911 chromaffinic1913 osmiophilic1923 osmophile1923 Feulgen-negative1928 fuchsinophilic1931 heteropycnotic1934 osmophilic1936 isopycnotic1950 Feulgen-positive1954 the world > life > biology > laboratory analysis > processes > [adjective] > using stains or dyes stained1889 Ziehl-Neelsen1892 cyanophilous1895 trichrome1918 polychromed1924 Feulgen1928 destained1930 cytophotometric1952 immunofluorescent1959 1928 R. J. Ludford in Proc. Royal Soc. B. 102 402 By Feulgen reaction no chromatin can be detected in either the oxyphil or basophil staining nucleoli. 1929 McClung & 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. 1941 Bot. Rev. 7 442 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. 1941 Bot. Rev. 7 443 There are no indications what the chromosome nucleic acids may be in the plants that react Feulgen-negative. 1952 M. J. 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. 1954 Nature 1 May 828/2 In mature pollen grains..the generative nucleus is Feulgen-positive while the vegetative nucleus gives a negative reaction. 1956 Nature 11 Feb. 272/1 Weakly Feulgen-staining segments. 1965 A. K. Sharma & A. Sharma Chromosome Techniques v. 116 Feulgen solution or, more precisely, fuchsin sulphurous acid is prepared from the dye, basic fuchsin. 1968 Brit. Med. Bull. 24 260/2 Specimens stained with dyes such as orcein and Feulgen. < as lemmas |
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