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Keywords: spermatogenesis
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Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2023) 226 (3): jeb245277.
Published: 3 February 2023
.... Here, we show that cyt-c1L is highly expressed in the testis of D. melanogaster . Knockdown or mutation of cyt-c1L in early germ cells of flies resulted in male sterility. Immunofluorescence staining showed that cyt-c1L knockdown testes had no defects in early spermatogenesis; however, in late stages...
Includes: Supplementary data
Journal Articles
Food restriction delays seasonal sexual maturation but does not increase torpor use in male bats
Free
Journal:
Journal of Experimental Biology
J Exp Biol (2020) 223 (8): jeb214825.
Published: 22 April 2020
.... Vespertilio murinus Energetic trade-off Body condition Spermatogenesis Heterothermy Living in seasonal, often unpredictable environments is challenging for many animals. The optimization of assimilated energy allocation among competing life-history traits is central to maximize fitness (Arlettaz...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (9): 1568–1577.
Published: 1 May 2017
... or the speed of spermatogenesis to the prevailing social group size. M acrostomum pusillum 's relatively simple sperm morphology likely explains the short spermatogenesis duration we report, and is linked to a hypodermically inseminating mode of fertilization, which we show also means that these worms...
Includes: Supplementary data
Journal Articles
P450 aromatase: a key enzyme in the spermatogenesis of the Italian wall lizard, Podarcis sicula
Free
Journal:
Journal of Experimental Biology
J Exp Biol (2016) 219 (15): 2402–2408.
Published: 1 August 2016
... investigations, we also demonstrated that both mRNA and protein were expressed in all phases, with two peaks of expression occurring in summer and in winter stasis. These highest levels of P450 aromatase are in line with the increase of 17β-estradiol, responsible for the spermatogenesis block typical...
Journal Articles
Heat induced male sterility in Drosophila melanogaster : adaptive genetic variations among geographic populations and role of the Y chromosome
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2004) 207 (16): 2735–2743.
Published: 15 July 2004
... tolerance of the N'Djamena strain (see Introduction)appeared unique, possibly related to some idiosyncratic mutations in a very hot and arid place. We now show that the heat tolerance of spermatogenesis,which permits permanent laboratory culture at 30°C, is widespread. To our knowledge, the most tolerant...
Journal Articles
Environmental influence on testicular MAP kinase (ERK1) activity in the frog Rana esculenta
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Journal:
Journal of Experimental Biology
J Exp Biol (2004) 207 (13): 2209–2213.
Published: 1 June 2004
... proliferation via ERK1 activity. * Author for correspondence (e-mail: [email protected]) 24 3 2004 © The Company of Biologists Limited 2004 2004 ERK1 spermatogenesis photoperiod proliferation frog Rana esculenta The amphibians are the first tetrapods and therefore...
Journal Articles
Accumulation of the mitochondrial form of the sulphydryl oxidase Erv1p/Alrp during the early stages of spermatogenesis
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2002) 205 (14): 1979–1986.
Published: 15 July 2002
...Monika Klissenbauer; Silke Winters; Uwe A. O. Heinlein; Thomas Lisowsky SUMMARY In this study, we investigated the expression of the mammalian FAD-dependent sulphydryl oxidase Erv1p/Alrp in the rat and mouse and during mouse spermatogenesis. Up to three forms of Alrp were identified in protein...
Journal Articles
Effects of the sap of the common oleander Nerium indicum (Apocyanaceae) on male fertility and spermatogenesis in the oriental tobacco budworm Helicoverpa assulta (Lepidoptera, Noctuidae)
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Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (22): 3935–3942.
Published: 15 November 2001
...Seong Eun Jeong; Yun Lee; Jeong Hee Hwang; Douglas C. Knipple SUMMARY We investigated the effects of sap of the common oleander Nerium indicum (Apocyanaceae) on male fertility and spermatogenesis in the oriental tobacco budworm Helicoverpa assulta . We found that continuous feeding of oleander sap...
Journal Articles
Effects of Nonylphenol and 17β-Estradiol on Vitellogenin Synthesis and Testis Morphology in Male Platyfish Xiphophorus Maculatus
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Journal:
Journal of Experimental Biology
J Exp Biol (2000) 203 (2): 171–181.
Published: 15 January 2000
... % of the nominal concentrations. * e-mail: [email protected] 01 11 1999 22 12 1999 © 2000 by Company of Biologists 2000 estrogen high pressure liquid chromatography (HPLC) nonylphenol platyfish Sertoli cell spermatogenesis testis histology vitellogenin Xiphophorus...
Journal Articles
Effects Of Nonylphenol And 17β-Oestradiol On Vitellogenin Synthesis, Testicular Structure And Cytology In Male Eelpout Zoarces Viviparus
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1998) 201 (2): 179–192.
Published: 15 January 1998
... on the synthesis of vitellogenin and on testicular structure and cytology were investigated in male eelpout Zoarces viviparus during active spermatogenesis (May) and late spermatogenesis (June). Twenty-five days after injection, a significant dose-dependent increase in the plasma vitellogenin concentration...