title: Initial approach to comparative studies on the evolutionary potentials of space radiation effects in a plant system.
abstract: The role of cosmic ionizing radiation, including heavy ions (HZE-particles) in the induction of mutations at the molecule-, chromosome-, genome- and cell-level is discussed on the basis of different DNA organization in a pro- and eukaryotically compartmented plant system (Arabidopsis thaliana (L.) Heynh.).  Data recently obtained on the biological effects of ionizing radiation make it timely to discuss comparatively the evolutionary potentials of space radiation effects in the pro- and eukaryotic genomes (plasmon, plastidom, chondriom, and nucleom) during long duration exposure on space flights.
authors.affiliation: Botanical Institute, J.W. Goethe-University, Frankfurt am Main, Germany.
authors.forename: A R
authors.initials: AR
authors.lastname: Kranz
authors.forename: K E
authors.initials: KE
authors.lastname: Gartenbach
authors.forename: M W
authors.initials: MW
authors.lastname: Zimmermann
mesh_terms: D017360:Arabidopsis / Q000235:genetics / Q000528:radiation effects*; D005075:Biological Evolution; D003359:Cosmic Radiation; D016296:Mutagenesis; D009154:Mutation; D012639:Seeds / Q000235:genetics / Q000528:radiation effects*; D013026:Space Flight; D018531:Spacecraft