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Embryonic Development of the Light-Brown Apple Moth
TopSome of the most challenging problems in biology today are concerned with `differentiation' - the amazing changes by which a fertilised egg becomes transformed into a complete animal.
In this film, time-lapse cinemicrography enables us to see the dynamic changes in an embryo of the Light-Brown Apple Moth as it develops to larval stage before emerging from its egg.
The Light-Brown Apple Moth lays a very flat egg, so it is an excellent subject for time-lapse study.
Produced in 1969.
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20:10:10 |
Title over microscope
20:10:26 | Dr. M F Day with cinemicrograph, describes embryological developmentof light brown apple moth
20:11:42 | Stills, light brown apple moth, on leaf, groups and eggs
20:12:34 | Dr. M Day Graphics - showing main stages in development of embryowith stills from time-lapse film
20:14:48 | Details of time-lapse film, period, temperature, exposure projectionspeed
20:15:12 | Time-lapse cinemicrography - development of germ band, cephaliclobesand caudallobes develop chorion
20:19:09 | Blastokineses - vigorous contractions which lead to larva changingits position within the yolk
20:21:13 | Two eye spots become visible, heart beat begins
20:22:45 | Embryo relatively still
20:24:21 | Amnion ruptured, yolk ingested, passes through gut and is excreted
20:26:57 | Larva hatches
20:27:00 | Dr. M Day advantages of time-lapse cinematography in following detailof embryonic development
20:27:36 | Credits
20:27:52 | Added note on later research being incorporated in film and narration
20:28:18 | End
20:10:26 | Dr. M F Day with cinemicrograph, describes embryological developmentof light brown apple moth
20:11:42 | Stills, light brown apple moth, on leaf, groups and eggs
20:12:34 | Dr. M Day Graphics - showing main stages in development of embryowith stills from time-lapse film
20:14:48 | Details of time-lapse film, period, temperature, exposure projectionspeed
20:15:12 | Time-lapse cinemicrography - development of germ band, cephaliclobesand caudallobes develop chorion
20:19:09 | Blastokineses - vigorous contractions which lead to larva changingits position within the yolk
20:21:13 | Two eye spots become visible, heart beat begins
20:22:45 | Embryo relatively still
20:24:21 | Amnion ruptured, yolk ingested, passes through gut and is excreted
20:26:57 | Larva hatches
20:27:00 | Dr. M Day advantages of time-lapse cinematography in following detailof embryonic development
20:27:36 | Credits
20:27:52 | Added note on later research being incorporated in film and narration
20:28:18 | End