Results 21 to 30 of about 10,170 (214)
浙江大学学报. 农业与生命科学版, 2008 Ultrastructures of spermatozoon tail in the rice water weevil, Lissorhoptrus oryzophilus, were observed via transmission electron microscopy at selected sperm developmental stages with the aim at clarifying spermiogenesis in this weevil.
HE Yan +3 more
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Spermatogenesis without spermiogenesis in Laudakia caucasia (Reptilia: Agamidae): the role of hibernation [PDF]
Iranian Journal of Animal Biosystematics, 2007 During hibernation period from Mid October to Late March, we removed testis of Laudakia caucasia. Based on histological and statistical analyses we obtained two phases in spermatogenesis in this lizard as follows: (a) from October to December, in which ...
N. Rastegar-Pouyani, F. Torki
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Centriole remodeling during spermiogenesis in Drosophila [PDF]
, 2016 The first cell of an animal (zygote) requires centrosomes that are assembled from paternally inherited centrioles and maternally inherited pericentriolar material (PCM) [1].
Kyoung H. Jo +21 more
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Mitochondrial Features and Expressions of MFN2 and DRP1 during Spermiogenesis in Phascolosoma esculenta [PDF]
, 2022 Mitochondria can fuse or divide, a phenomenon known as mitochondrial dynamics, and their distribution within a cell changes according to the physiological status of the cell.
Binbin Feng +13 more
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Tex13a Optimizes Sperm Motility via Its Potential Roles in mRNA Turnover
Frontiers in Cell and Developmental Biology, 2021 mRNAs have been found to undergo substantial selective degradation during the late stages of spermiogenesis. However, the mechanisms regulating this biological process are unknown. In this report, we have identified Tex13a, a spermatid-specific gene that
Yinchuan Li +10 more
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Journal of Lipid Research, 2010 Delta-6 desaturase-null mice (−/−) are unable to synthesize highly unsaturated fatty acids (HUFAs): arachidonic acid (AA), docosahexaenoic acid (DHA), and n6-docosapentaenoic acid (DPAn6).
Manuel Roqueta-Rivera +9 more
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Spermiogenesis in the rainbow trout (Salmo gairdneri) [PDF]
, 1983 In an ultrastructural study on the spermiogenesis of the rainbow trout (Salmo gairdneri R.) four spermatogenetic stages were identified. In young round spermatids, the nuclear chromatin was first heterogeneous (euchromatin and heterochromatin ...
Billard,
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Loss of Axdnd1 causes sterility due to impaired spermatid differentiation in mice
Reproductive Medicine and Biology, 2022 Purpose Spermiogenesis, the process of deformation of sperm head morphology and flagella formation, is a phenomenon unique to sperm. Axonemal dynein light chain proteins are localized to sperm flagella and are known to be involved in sperm motility. Here,
Yuki Hiradate +10 more
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MEIG1 is essential for spermiogenesis in mice [PDF]
Proceedings of the National Academy of Sciences, 2009 Spermatogenesis can be divided into three stages: spermatogonial mitosis, meiosis of spermatocytes, and spermiogenesis. During spermiogenesis, spermatids undergo dramatic morphological changes including formation of a flagellum and chromosomal packaging and condensation of the nucleus into the sperm head.
Zhibing, Zhang +8 more
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Drosophila PhLP3/CG4511 is Required for Spermiogenesis [PDF]
, 2022 Phosducin-like protein 3 (PhLP3) has been shown to possess redox activity, and it is believed to function as a co-chaperone in the folding of cytoskeletal proteins.
Petit, Christopher
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