Since then, spine-like bodies were found in the spermatozoa of numerous digeneans (see Bakhoum et al., 2017a). Table 1. Available data on the ultrastructure of the spermatozoon in the Brachylaimidae. Subfamilies and speciesSpermatozoon charactersReferences Empty CellTSASCTAxLEEOEO + CMLEO...
1). Cell division results in a regular cell pattern, whereas cell adhesion results in an irregular pattern of cells, which has traditionally been used to distinguish these two mechanisms (Xiao et al., 2017). The structural characteristics of Microcystis are crucial in colony formation. T...
(a) Schematic diagram of spermatogenesis in Nasonia. Spermatogenesis begins with a spermatogonial stem cell dividing and forming a daughter primary gonial cell. Cyst progenitor (stem) cells are divided to form cyst cells, two of which surround a primary gonial cell. The primary gonial cell ...
round and elongating spermatids and sperm but not in Sertoli cells (Fig.1F), consistent with its absence of expression in Kitw/wvtestes. Altogether, these results indicated that STYXL1 is a germ-cell-specific pseudophosphatase in testis,
At haploid stage, probably the most characteristic feature that distinguishes spermatid development from other somatic cell differentiation is the unique cellular structures formed, such as the acrosome and sperm tail [6]. At the molecular level, spermatid chromatin undergoes drastic chromatin remodeling ...
Infante JP, Huszagh VA. Synthesis of highly unsaturated phosphatidylcholines in the development of sperm motility: a role for epididymal glycerol-3-phosphorylcholine. Mol Cell Biochem. 1985;69(1):3–6. ArticleCASPubMedGoogle Scholar Pixton KL, Deeks ED, Flesch FM, Moseley FL, Bjorndahl L, As...
A :2 pronuclear fertilization; (B): 8-cell stage embryo; (C): blastocyst stage embryo; (D): the ultrasound image of gestational sac. Scale bar: 40 μm Full size image Discussion Two patients with severe asthenoteratozoospermia harboring homozygous SPAG6 variants were identified. The two...
However, whether the alcohol-induced changes we observe in sperm result from deficiencies in histone removal57 or are part of a larger programmed response remains unknown and will be the subject of future investigation. Previous studies examining chromatin structure in sperm, 2-cell embryos, and ...
Using 10× Chromium single-cell sequencing technology, we assessed the transcriptome from >65,000 single spermatozoa across six sperm donors (scSperm-RNA-seq), including two who fathered multiple children with ASD and four fathers of neurotypical children. Using RNA-seq methods for differential ...
In-cell molecular architecture of mouse sperm axoneme DMT Fig. 1: Overall architecture of mouse sperm DMT. Full size image Fig. 2: Detailed molecular organization of DMT in the repeats of 16 nm and 48 nm cryo-EM maps and models. ...