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Document Type

Research

Abstract

Soaking seeds of Arabidopsis in 0.005% streptomycin (SM) produced no second generation chlorophyll mutants. But when seeds were soaked in 0.005% SM for 20 hours before irradiation with X-ray, the percentage of chlorophyll mutants was lower than in plants obtained from seeds that were soaked in distilled water before exposure to X-ray. This protective action of SM was antagonized by 0.01 M Mncl2. It is suggested that this change in the radiosensitivity of Arabdopsis by SM is caused by chelation of Mn++ with SM, thus causing a deficiency of the Mn++ ion, which is essential for the integrity of the chromosomes.

Publication Date

1969

Journal Title

Proceedings of the Iowa Academy of Science

Volume

76

Issue

1

First Page

69

Last Page

73

Copyright

© Copyright 1969 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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