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Mutagenic Effect of Nitrosomethylurea Modified by Heat Shock at Early Stages of the Sunflower Seedlings Development

Mutagenic Effect of Nitrosomethylurea Modified by Heat Shock at Early Stages of the Sunflower... A comparative study of chlorophyll mutations induced in sunflower seedlings of the initial line 3629 and its nuclear and plastom mutant derivatives by nitrosomethylurea (NMU), heat shock (HS, 40°C), and their combination was performed. The spectrum and frequency of chlorophyll mutations depended on the treatment conditions and on the genotype of the lines tested. Nuclear mutant displayed highest sensitivity to NMU, HS, and their combination. The line 3629 plants displayed highest tolerance to NMU and HS. However, plastom mutants were more tolerant to the combination of the mutagens compared to the plants of the initial line. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Mutagenic Effect of Nitrosomethylurea Modified by Heat Shock at Early Stages of the Sunflower Seedlings Development

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References (43)

Publisher
Springer Journals
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
DOI
10.1023/A:1013243828751
Publisher site
See Article on Publisher Site

Abstract

A comparative study of chlorophyll mutations induced in sunflower seedlings of the initial line 3629 and its nuclear and plastom mutant derivatives by nitrosomethylurea (NMU), heat shock (HS, 40°C), and their combination was performed. The spectrum and frequency of chlorophyll mutations depended on the treatment conditions and on the genotype of the lines tested. Nuclear mutant displayed highest sensitivity to NMU, HS, and their combination. The line 3629 plants displayed highest tolerance to NMU and HS. However, plastom mutants were more tolerant to the combination of the mutagens compared to the plants of the initial line.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 16, 2004

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