Publications

development of the main and accessory placentae in the japanese long-fingered bat, miniopterus schreibersii fuliginosus.	the placentae of the japanese long-fingered bat were characterized by their morphological and functional transition from the main placenta to the accessory placentae. the main placenta transformed from an endotheliodichorial to a haemodichorial (one layer of syncytiotrophoblast and one layer of cytotrophoblast cells) condition. degeneration of the main placenta was accompanied by development of two accessory placentae. these developed on both sides (fetal side) of the main placenta, and subseque ...	1984	6726672
effects of elevated temperatures on the embryonic development and corpus luteum activity in the japanese long-fingered bat, miniopterus schreibersii fuliginosus.	gravid female japanese long-fingered bats were kept in captivity without hibernation at elevated temperatures (23-25 degrees c) in winter. the embryonic growth rate was accelerated and consequently parturition was advanced by a period equivalent to that of exclusion from hibernation as compared with that in the wild population. the corpus luteum became active, as indicated by an increase in the 'light' lutein cells in an experimental bat pregnant with a 15-mm embryo, but was less active (more 'd ...	1984	6747953
ultrastructural observations of delayed implantation in the japanese long-fingered bat, miniopterus schreibersii fuliginosus.	embryonic development in japanese long-fingered bats proceeded very slowly during and after the delayed implantation period (mid-october to mid-december). the primitive amniotic cavity and endoderm were formed before implantation. at the preimplantation stage (before hibernation) the corpus luteum cells appeared active, but became less active at the implantation stage (in hibernation). activity was again apparent at the early placentation stage (after arousal).	1983	6887134
changes in the morphology and behaviour of spermatozoa between copulation and fertilization in the japanese long-fingered bat, miniopterus schreibersii fuliginosus.	live spermatozoa were first stored in the colliculus tubaricus of the uterotubal junction (utj) on both sides, spermatozoa then ascended to the caudal isthmus just before ovulation. spermatozoa with intact acrosomes in the caudal isthmus, which had their heads orientated towards the cephalic isthmus, were seen amongst groups of epithelial cilia in parallel to the epithelium; on the other hand, acrosome-less spermatozoa that were not attached to the epithelium were orientated irregularly in the l ...	1982	7077598
histological study of implantation in the natal clinging bat (miniopterus schreibersii natalensis).	in the natal clinging bat, miniopterus schreibersii natalensis, implantation is centric and superficial in the right uterine horn. the blastocyst implants during the bilaminar stage with the inner cell mass orientated antimesometrially. during the preimplantation period the blastocyst becomes completely enclosed by uterine mucosae with the trophoblast in close contact with the surrounding uterine epithelium. just before implantation the trophoblast becomes bilaminar over the greater part of the ...	1982	7097640
comparative anatomical observations of the tongue of the japanese long-fingered bats, miniopterus schreibersi fuliginosus.		1982	7122024
ultrastructural observations of fertilization in the japanese long-fingered bat, miniopterus schreibersii fuliginosus.	only a very few spermatozoa were found in the ampulla of the oviduct just after ovulation. the spermatozoa lost both the acrosome cap and the equatorial segment while passing between the cumulus cells surrounding an ampullar egg; many such spermatozoa were found in the perivitelline space. one spermatozoon was seen in contact with the plasma membrane of the ovum in the metaphase of the second meiotic division. excess spermatozoa in the perivitelline space were phagocytosed by pseudopodial protru ...	1981	7196950
volumetric comparison of the accessory olfactory bulb in bats.	accessory olfactory bulb (aob) volumes were calculated in 26 chiropteran species. the percentage of the aob in relation to the olfactory bulb complex ranges between 0.18 and 2.70%. the allometric comparison reveals the high development of this structure in the phyllostomatid subfamily of glossophaginae. carolliinae and sturnirinae are near the chiropteran average. smaller aobs can be observed in sphaeronycteris, diphylla, pteronotus parnellii and miniopterus schreibersi. comparison of the right/ ...	1981	7246042
a histochemical study on the innervation of the cerebral blood vessels in bats.	the adrenergic and cholinergic nerves innervating the cerebral blood vessels of four species of japanese chiropterids (rhinolophus ferrumequinum, murina leucogaster, vespertilio superans and miniopterus schreibersi) have been investigated using specific histochemical techniques. in all these species of bats arteries of the internal carotid system are poorly developed, whereas those of the vertebro-basilar system are well developed. the adrenergic and cholinergic nerves innervating these cerebral ...	1981	7249047
ultrastructural observations of ovulation in the japanese long-fingered bat, miniopterus schreibersii fuliginosus.	in the japanese long-fingered bat, miniopterus schreibersii fuliginosus, ovulation occurred spontaneously with the disappearance of the granulosa layer and germinal epithelium at the apex of the stigma which was formed simultaneously with expulsion of the first polar body, and with the subsequent bleeding from the capillary lumina of the theca interna. after ovulation the rupture point was plugged by luteinizing granulosa cells and overgrown by newly regenerated cells of the tunica albuginea and ...	1981	7299746
sperm storage in the reproductive tract of the female japanese long-fingered bat, miniopterus schreibersii fuliginosus.	in the japanese long-fingered bat, miniopterus schreibersii fuliginosus, spermatozoa in contact with the microvilli of non-ciliated cells in folds in the uterotubal junction appeared normal, while spermatozoa remaining in the uterus degenerated and were engulfed by a massive invasion of polymorphonuclear leucocytes. no leucocytes were seen in the uterotubal junction area. it is suggested that the spermatozoa in this area are being stored, probably until ovulation occurs.	1980	7191895
transmission electron microscope observation of epithelial cells with single cilia in intrahepatic biliary ductules of bats.	cells with long single cilia arising from basal bodies in the apical cytoplasm were occasionally revealed in the bile ductular epithelia of bats (miniopterus schreibersi (kuhl), myotis macroductylus (temminck) and rhinolophus cornutus (temminck)). the basal body (distal centriole) was associated witha proximal centriole, so the basal structure was of "two centriole type." in cross sections of the long tapering cilia the arrangement of cilary microtubules was determined. in the most proximal port ...	1978	718389
occurrence of centrioles in interphasic hepatocytes of bat and chicken.	occurrence of centrioles in non-dividing hepatocytes was examined by electron microscopy in the bat, miniopterus schreibersi (kuhl) and myotis macrodactylus (temminck), and the chicken. in both species centrioles were mostly found in the apical hyaloplasmic halo which was distinct in the chicken but rather indistinct in the bat. there was no difficulty in locating centrioles in the hepatocytes of either species. in the chicken centrioles were found in the attenuated apical cytoplasmic areas of 4 ...	1978	718390
the amino acid sequence of bat (miniopteris schreibersi) cytochrome c.		1972	4347193
fine structure of the medial nucleus of the trapezoid body of the bat with special reference to two types of synaptic endings.	the medial nucleus of the trapezoid body has been studied electron microscopically in two species of bat, miniopterus schreibersi fuliginosus and vespertilio superans, which were perfused with three different kinds of fixatives, osmium tetroxide, glutaraldehyde, and formaldehyde. two types of synaptic endings are observed in the nucleus: the abundant calyciferous endings and the less frequently occurring "small-vesicle endings." the former endings vary greatly in size, and contain extended extra ...	1971	5563443
[histological and ultrastructural study of the placental disc of the bat miniopterus schreibersi (chiroptera): its endothelio-chorial nature, its endocrine character].		1970	5450212
[seasonal changes of the adrenal cortex in a cheiroptera (miniopterus schreibersii)].		1960	13736210
[prolonged pregnancy in a bat (miniopterus schreibersi) and its reaction to gonadotropins].		1956	13389771
the primordial cranium of miniopterus schreibersi at the 17 millimetre total length stage.		1919	17103873