| on the blood group b gene-specified alpha-galactosyltransferase in the serum of the japanese tortoise (clemmys japonica). | human blood group o cells were converted into b-active cells by incubation at either 4 degrees or 37 degrees with uridine diphosphate d-galactose and unfractionated serum from the japanese tortoise (clemmys japonica). the specificity of the converted cells was tested by their reactions with human anti-b, anti-a and rabbit anti-b sera. under the conditions used, bombay (oh) type cells were not converted, and group-o foetal cells possessing a few h antigenic sites were only weakly converted into b ... | 1976 | 977033 |
| monoamine oxidase in the neurohypophysis of the newt (cynops pyrrhogaster pyrrhogaster), the toad (bufo bufo japonicus) and the tortoise (clemmys japonica). | | 1972 | 4623962 |
| the behavioral reactions of a snake and a turtle to abrupt decreases in gravity. | we report here on the behavioral reaction of two reptiles to abrupt decreases in gravity. one striped rat snake, elaphe quadrivirgata, and three striped-neck pond turtles, mauremys japonica, were exposed to microgravity on parabolic flight, during the filming of a documentary for the nhk television station in japan. the video films revealed that the snake reflexively responded to the shift from hyper- to hypogravity by taking up a defensive posture--on the first parabola, the snake struck at its ... | 1993 | 11542224 |
| ultrastructural and histochemical studies on the taste buds in some reptiles. | the taste buds in tortoises (clemmys japonica and geoclemys reevesii), lizards (takydromus tachydromoides) and snakes (elaphe quadrivirgata) were examined by both ultrastructural and histochemical methods. the taste buds consisted of at least three types of cells: the type i, ii and iii cells. the type i cells were characterized by the presence of secretory dense granules containing polysaccharides which were demonstrated by periodic acid-chromic acid-silver methenamine technique. the type ii ce ... | 1980 | 6972201 |
| fine structure of the dorsal epithelium of the tongue of the japanese terrapin, clemmys japonica (cheloia, emydinae). | as reptiles are situated phylogenetically between the amphibians and the mammals, they exhibit considerable variation in the structure of their tongues. the present study, one of a series of studies on reptile tongues, aims to demonstrate the three-dimensional structure of the dorsal lingual surface of a turtle, the japanese terrapin clemmys japonica, and to clarify the ultrastructural features of the lingual epithelial cells. in the study lingual papillae were observed by scanning electron micr ... | 1992 | 1419279 |
| comparison of complete mitochondrial dna control regions among five asian freshwater turtle species and their phylogenetic relationships. | the complete mitochondrial dna (mtdna) control regions (cr), cytochrome b (cyt b), nadh dehydrogenase subunit 4 (nd4) and cytochrome coxidase subunit i (co i) genes of four asian freshwater turtles, mauremys japonica, ocadia sinensis, m. mutica, and annamemys annamensis, were sequenced using universal pcr and long-pcr techniques. combined with cr sequences of chinemys reevesii, the composition and structure of cr of the five species were compared and analyzed. three functional domains (tas, cd a ... | 2011 | 21863550 |
| production of monoclonal antibodies against chinemys reevesii turtle vitellogenin and their usage for comparison of biochemical and immunological characters of vitellogenins and yolk proteins of freshwater turtles. | four hybridoma clones (acv-1, -3, -4, and -5) were established for chinemys reevesii (reeves' turtle) vitellogenin (vtg) as a precursor protein of egg yolk and a biomarker of environmental pollution. binding-inhibition experiments indicated that the epitopes of four mabs were distinct. no binding of acv-4 to c. reevesii vtg in the western blot suggests that the epitope of acv-4 would be dependent on the three-dimensional structure. acv-1, -3, and -5 bound to c. reevesii vtg in the western blot. ... | 2005 | 16122960 |
| comparative analyses of serum vitellogenin levels in male and female reeves' pond turtles (chinemys reevesii) by an immunological assay. | a quantitative immunological method was developed for measuring serum vitellogenin levels of reeves' pond turtles (chinemys reevesii) to investigate the effects of endocrine disruptors on the freshwater ecosystem. vitellogenin was induced by injecting estradiol-17beta into c. reevesii turtles (adult females, juvenile females, and males) and was purified from the turtle serum by edta-mgcl2 precipitation followed by gel filtration. using a polyclonal antibody raised against c. reevesii vitellogeni ... | 2004 | 14513265 |
| tonic fiber in mauremys (clemmys) japonica jaw muscle. | the jaw muscles of a turtle [mauremys (clemmys) japonica (mcj)], have been analyzed for the histochemical characteristics of their fiber types. six jaw muscles of the mcj have been analyzed for histochemical characteristics of their fiber types. in this study, fiber types in two groups of muscles are classified; 1) fast twitch glycolytic (fg), fast twitch oxidative glycolytic (fog), slow twitch oxidative (so), and tonic fibers, according to the system of putnam et al. (1980); 2) reacted differen ... | 1997 | 9128060 |
| the occurrence and fine structure of merkel cells in the lingual epithelium of the turtle, clemmys japonica. | electron microscopic examination of the lingual mucosa of the turtle, clemmys japonica, revealed the occurrence of merkel cells that shared many morphological features with merkel cells in other vertebrates. merkel cells were located exclusively in the basal portion of the epithelium near the taste buds. we also found occasional merkel cells devoid of nerve contact. nerve terminals approaching these non-innervated merkel cells were occasionally found in the connective tissue just beneath these c ... | 1993 | 8247473 |
| immunohistochemical demonstration of serotonin neurons in the central nervous system of the turtle (clemmys japonica). | the location of the somata, course of the main tracts, and fiber distribution of the serotonin neurons in the turtle brain were studied using the peroxidase-antiperoxidase (pap) immunohistochemical method with antibodies against serotonin (5-hydroxytryptamine). the somata of the serotonin neurons were distributed in the reticular formation of the brainstem from the mesencephalon to the lower medulla level and in a resticted region of the hypothalamus, viz. the paraventricular organ (pvo). in the ... | 1983 | 6359957 |
| [experimental cytological observations on the islets of langerhans in the tortoise (clemmys japonica)]. | | 1962 | 13962252 |