. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 114 W. A. ANDERSON AND W. R. ECKBERG. FIGURE 6. Initial interaction between a sperm and a microvillus prior to gamete fusion. Note that the plasma membrane over the acrosome is associated with a microvillus tip (MV) via the jelly (J). Bar = 1 ^m. FIGURE 7. Erection of a sperm following initiation of the acrosome reaction and attachment of the sperm to a microvillus (MV). Bar = 1 /urn. FIGURE 8. Gamete fusion involving the sperm inner acrosomal membrane (IAM) and an egg microvillus (MV). Bar = 1 ^m. Inset: light micrograph sh
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 114 W. A. ANDERSON AND W. R. ECKBERG. FIGURE 6. Initial interaction between a sperm and a microvillus prior to gamete fusion. Note that the plasma membrane over the acrosome is associated with a microvillus tip (MV) via the jelly (J). Bar = 1 ^m. FIGURE 7. Erection of a sperm following initiation of the acrosome reaction and attachment of the sperm to a microvillus (MV). Bar = 1 /urn. FIGURE 8. Gamete fusion involving the sperm inner acrosomal membrane (IAM) and an egg microvillus (MV). Bar = 1 ^m. Inset: light micrograph showing a sperm attached to an egg microvillus which has thickened to the point where it is visible at this level of resolution and can thus be called a fertilization cone (arrow). FIGURE 9. Sperm incorporation into the Chaetoplerus egg. Note that the sperm nucleus (N), mi- tochondrion (M) and base of the flagellum (F) have all been incorporated. Note also the microvilli (MV) iiich surround the sperm and make up the small fertilization cone. Bar = 1 ^m. Inset: light micrograph of a slightly earlier stage in fertilization cone formation showing several microvilli surrounding the incorporated Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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