| the primary structure of the hemoglobin from the tomb bat (taphozous georgianus, microchiroptera). | the primary structures of the alpha- and beta-chains of the single hemoglobin component from the tomb bat (taphozous georgianus, microchiroptera) are presented. after chain separation by reversed-phase hplc the sequences could be determined by automatic gas and liquid phase edman degradation of the chains and their tryptic peptides. the alpha- and beta-chains differ from human hemoglobin by 14 and 18 replacements, respectively. compared to the total number of amino-acid exchanges, the exchange r ... | 1992 | 1466792 |
| sex steroid levels and leydig cell ultrastructure of the male common sheath-tail bat, taphozous georgianus. | male sheath-tail bats were collected from central queensland over a 12-month period. plasma testosterone levels peaked in august, coincident with an increase in the volume of the accessory glands and ampulla/seminal vesicle secretion. peak spermatogenesis occurred in summer and autumn and declined in the face of maximal testosterone levels in winter. levels of androstenedione and 5 alpha-dihydrotestosterone were high compared with testosterone levels and showed no significant seasonal changes. u ... | 1989 | 2710959 |
| testicular migration, spermatogenesis, temperature regulation and environment of the sheath-tail bat, taphozous georgianus. | the testes of the common sheath-tail bat of tropical australia undergo a seasonal migration between the abdomen and the scrotal pouches, while each cauda epididymidis is permanently maintained in the scrotal pouch. straps of smooth muscle attach to both the cranial and caudal poles of the testes, and these extend cranially to the diaphragm and caudally to the cauda epididymidis. the testicular arteries are not coiled. among the environmental factors investigated, maximum temperature correlated m ... | 1988 | 3199362 |
| prolonged epididymal sperm storage, and the temporal dissociation of testicular and accessory gland activity in the common sheath-tail bat, taphozous georgianus, of tropical australia. | peak spermatogenic activity of the common sheath-tail bat occurs in autumn, declines over winter and ceases in spring. accessory glands enlarge in spring when mating occurs, but are regressed at other times of the year. spermatozoa are stored in the cauda epididymidis throughout the year, and their numbers increase progressively from early summer to late autumn. sperm storage permits asynchrony of male and female cycles and allows each to be optimally timed in relation to environmental condition ... | 1987 | 3668950 |
| reproduction in the common sheath-tailed bat, taphozous georgianus (thomas) (microchiroptera: emballonuridae), in western australia. | | 1973 | 4803464 |