Document Detail


Biological effects of heavy ions in Arabidopsis seeds.
MedLine Citation:
PMID:  11537214     Owner:  NASA     Status:  MEDLINE    
Abstract/OtherAbstract:
Irradiation of dry seeds of Arabidopsis with heavy ions (HZE-particles) produced by UNILAC-accelerator (GSI, Darmstadt) yielded aberrations in varied developmental endpoints such as survival rate and embryo vitality. The damage increased with particle density and charge. Cross sections in the range of 0.2-1.0 micrometer2 for Ne and Ar and 2.0-10.0 micrometers2 for Xe were estimated. Soaked seeds were more sensitive than dry seeds (cross-section 2.0-10.0 micrometers2 for Ar). The induced total damage in the irradiated seeds was estimated adding the different damages weighted by certain factors. These results will be used as base data for the interpretation and evaluation of spaceflight experiments on the biological effects of cosmic radiation.
Authors:
U Bork; K Gartenbach; C Koch; A R Kranz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Advances in space research : the official journal of the Committee on Space Research (COSPAR)     Volume:  6     ISSN:  0273-1177     ISO Abbreviation:  Adv Space Res     Publication Date:  1986  
Date Detail:
Created Date:  2000-05-07     Completed Date:  2000-05-07     Revised Date:  2007-04-16    
Medline Journal Info:
Nlm Unique ID:  9878935     Medline TA:  Adv Space Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  149-52     Citation Subset:  S    
Affiliation:
Botanisches Institut, J.W. Goethe-Universitat, Frankfurt am Main, FRG.
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MeSH Terms
Descriptor/Qualifier:
Arabidopsis / radiation effects*
Argon
Chromosome Aberrations
Cosmic Radiation
Desiccation
Dose-Response Relationship, Radiation
Heavy Ions*
Neon
Radiation Dosage
Relative Biological Effectiveness
Seeds / radiation effects*
Water
Xenon
Chemical
Reg. No./Substance:
7440-01-9/Neon; 7440-37-1/Argon; 7440-63-3/Xenon; 7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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