Open AccessDosimetric support of biological experiments on an example of lettuce seeds exposed on Bion-M1 biological satellite
Author(s) -
Olga Ivanova,
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N. G. Platova,
Raisa Tolochek,
Vyacheslav Shurshakov,
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Publication year - 2021
Publication title -
trudy kolʹskogo naučnogo centra ran
Language(s) - English
Resource type - Journals
ISSN - 2307-5252
DOI - 10.37614/2307-5252.2021.6.12.9.028
Subject(s) - lactuca , dosimeter , chromatid , germination , biology , horticulture , satellite , chromosome , nuclear medicine , genetics , physics , medicine , dosimetry , gene , astronomy
The cytogenetic characteristics of Lactuca sativa lettuce seeds exposed in a package located inside the Bion-M1 biosatellite were studied. The absorbed dose according to solid-state dosimeters placed inside the package was 58 ± 3 mGy. There was a significant (p ≤ 0,001) increase in the percentage of cells with chromosome aberrations, cells with multiple aberrations, as well as the percentage of chromosomal bridges and fragments; the percentage of chromatid bridges and fragments was not significantly increased. At the same time, the seed vigor and germinating ability of the flight samples remain at the control level of 99–100 %.