WebDec 9, 2008 · Ca 2+ is known to be an important factor involved in the regulation of flagellar beating. In the case of sea urchin spermatozoa, intracellular Ca 2+ concentration ([Ca 2+] i), appears to be correlated with the asymmetric beating of sperm flagella (10, 11), and it has been shown that sperm-activating peptides trigger the increase in [Ca 2+] i (12, 13).Also, … Webimage processing software (Bohbohsoft, Tokyo, Japan). The angle θ of the line to gravity was used to calculate rotational velocity Ω.A time series of the angle θ to the gravitational direction was obtained for each cell. The rotational velocity was calculated from cells with angle θ to gravity of 1/3π–2/3π rad. The upward rotational ...
Possible ability of bovine follicular fluid to attract migrating bull ...
WebNov 3, 2024 · Flagellar length and head size from motile sperm were measured with flagellar analyzing software Bohboh (Bohboh Rel. 4.78; BohbohSoft, Tokyo, Japan; 31). For … WebMar 15, 2014 · The sperm of the gastropod Strombus luhuanus show dimorphism. The eusperm have a nucleus and fertilize the egg, whereas the other type of sperm, parasperm, are anucleate and are thought to assist fertilization. Here we report the autonomous changes in the swimming pattern of S. luhuanus eusperm. In artificial seawater, the … dr nathan hayward
Drastic reorganization of the bioconvection pattern of
WebJan 1, 2009 · However, if the cell is held on a micropipette, it is possible to analyze continuous beating sequences for indefinite durations. Our computer program only requires manually determining the single approximate base origin of the cilia and tracing the first image in the sequence (potentially using BohbohSoft or by eye) to initialize several ... Webused ‘FIESTA’ software17, the semi-automatic ‘Bohboh’ software (BohbohSoft, Tokyo, Japan)18, the generalised. linear models of Xiao et al.19, and the ‘active contour’ … WebJan 31, 2024 · The position of the sperm head was analyzed with Bohboh software (BohbohSoft, Tokyo, Japan). The parameter indicating the strength of sperm-attracting activity, LECI (linear equation chemotaxis index) was calculated from the distance between the capillary tip and sperm position, as described previously [ 8 ]. dr nathan hayward ent