Credit: FRANCIS LEROY & GUILLAUME WILMOTTE, BIOCOSMOS/SCIENCE PHOTO LIBRARY

Caption: Sea urchin fertilisation. Animation showing a sea urchin sperm penetrating an egg. When the sperm comes in contact with the egg it releases enzymes (black dots) from its acroscome (yellow) that digest the jelly coat (grey) of the egg. Next an acrosomal process forms and actin filaments (black line) fuse with the vitelline layer (thick black line) that lays over the egg cell membrane (white). The acromosomial membrane and the egg membrane then fuse and the sperm's nucleus is able to enter the egg.

Release details: Model release not required. Property release not required.

Keywords: acrosomal, acrosomal process, acrosome, actin filaments, animated, animation, biological, biology, black background, egg, fauna, fertilisation, fertilising, fertilization, fertilizing, gametes, membrane fusion, model organism, nature, ovum, reproduction, sea urchin, sexual, sperm, spermatozoan, spermatozoon, vitelline layer, zoological, zoology

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Sea urchin fertilisation, animation

K004/3542 Rights Managed

Downloadable master

Duration: 00:00:25

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 154.9M

Original

Capture format: QuickTime Animation

Codec: H.264

Please contact Science Photo Library if you require the original, or other formats.

 

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