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Preliminary results of the Artemia salina experiments in biostack on LDEFThe mosaic egg of the brine shrimp, Artemia salina, resting in blastula or gastrula state represents a system that during further development, proceeds without any further development to the larval stage, the free swimming nauplius. Therefore, injury to a single cell of the egg will be manifest in the larvae. In several experiments, it was shown that the passage of a single heavy ion through the shrimp egg damaged a cellular area large enough to disturb either embryogenesis or further development of the larvae, or the integrity of the adult individual. Emergence from the egg shell was heavily disturbed by the heavy ions as was hatching. Additional late effects, due to a hit by a heavy ion, are delayed of growth and of sexual maturity, and reduced fertility. Anomalies in the body and the extremities could be observed more frequently for the nauplii which had developed from eggs hit by heavy ions.
Document ID
19920017882
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Graul, E. H.
(Marburg Univ.)
Ruether, W.
(Marburg Univ.)
Hiendl, C. O.
(Marburg Univ.)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Publication Information
Publication: NASA. Langley Research Center, LDEF: 69 Months in Space. First Post-Retrieval Symposium, Part 3
Subject Category
Life Sciences (General)
Accession Number
92N27125
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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