Characterization of UV-B resistant Arabidopsis <I>uvi4</I> mutant
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- Hase Yoshihiro
- Plant Resources, Japan Atomic Energy Research Institute
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- Huu Trung Khuat
- Plant Resources, Japan Atomic Energy Research Institute Agricultural Genetics Institute
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- Tanaka Atsushi
- Plant Resources, Japan Atomic Energy Research Institute
Bibliographic Information
- Other Title
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- 紫外線耐性シロイヌナズナ変異体<I>uvi4</I>の解析
Abstract
The ultraviolet B insensitive 4 (uvi4) mutant is one of the four UV-B resistant mutants that have been previously isolated. The fresh weight of uvi4 plants grown under supplemental UV-B light was more than twice of that of the wild type. No significant difference was found in the UV-B absorbing compounds extracted in acidified methanol. The induction and reduction in level of cyclobutane pyrimidine dimers was not significantly different between uvi4 and wild type. We found that the leaf cells of uvi4 undergoes one more round of endoreduplication as compared to those of wild type. This enhanced ploidy level may contribute the higher tolerance of uvi4 mutant. The uvi4 is mapped on the bottom of chromosome 2 and the positional cloning is ongoing.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2005 (0), 548-548, 2005
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390282680605129344
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- NII Article ID
- 130006988763
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed