Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Satoshi Hiroyoshi"'
Publikováno v:
Insects, Vol 12, Iss 642, p 642 (2021)
Insects
Volume 12
Issue 7
Insects
Volume 12
Issue 7
In general, sperm produced in the testis are moved into the seminal vesicle via the vas deferens in insects, where they are stored. How this sperm movement is controlled is less well understood in locusts or grasshoppers. In this study, the effects o
Publikováno v:
Insects
Simple Summary We investigated male sperm storage in the desert locust Schistocerca gregaria. Phase (solitary or gregarious) did not affect sperm distribution in the vas deferens and seminal vesicle, whereas sperm accumulation of the seminal vesicle
Publikováno v:
Journal of Insect Physiology. 100:1-8
Sperm polymorphism is widely known in invertebrates. In insects, Lepidoptera has two types of sperm: nucleated eupyrene (fertile) sperm and anucleated apyrene (unfertile) sperm. These sperm types are produced during post-embryogenesis, and eupyrene s
Publikováno v:
Journal of Insect Behavior. 29:689-707
The relationship between sperm production, insemination rate, and sperm transfer were studied in the sweet potato weevil, Cylas formicarius. Older adult males retained more sperm in the testes-seminal vesicle complex (TSC) and thus more was ejaculate
Publikováno v:
American Journal of Life Sciences. 5:103
The sweetpotato weevil, Cylas formicarius, stores free sperm in both the testes and the seminal vesicle, even though the primary function of the testes is sperm production. Here, it was investigated sperm storage in the testes in relation to mating f
Autor:
Jun Mitsuhashi, Satoshi Hiroyoshi
Publikováno v:
Journal of Insect Physiology. 45:107-112
The relationship between sperm quantity in the duplex and that in the vasa deferentia was examined in the Asian comma butterfly, Polygonia c-aureum. In virgin males, the number of eupyrene sperm bundles in the duplex increased linearly with age, wher
Autor:
Satoshi Hiroyoshi, Jun Mitsuhashi
Publikováno v:
Zoological science. 15(4)
The effects of temperature, photoperiod and aging on eupyrene sperm movement from the testis to the duplex in Polygonia c-aureum male adults were examined in relation to seasonal form and imaginal diapause. In males of both summer and autumn forms ob