The expression of a Vp1-like gene and seed dormancy in Mesembryanthemum crystallinum.
スポンサーリンク
概要
- 論文の詳細を見る
Seeds of the common ice plant (Mesembryanthemum crystallinum) germinate in distinct sub-populations over a time period of more than 4 weeks following imbibition. Distinguishing early (E)- and late (L)-germinating seeds is the expression of a homologue of the transcriptional activator VP1. The deduced amino acid sequence of ice plant VP1 (MVP1) is 39% identical (50% similar) to the sequence of the Arabidopsis VP1 homologue, ABI3. The amount of Mvp1 mRNA, transcribed from a single gene, is different in E and L seeds after water uptake. The levels of the Mvp1 transcripts are very low in immature and mature seeds and they increased during 6 days of imbibition. This expression profile of Mvp1 is different from known Vp1/ABI3-like genes in other plants. Cycloheximide (at 35 μM) abolishes the increase of Mvp1, and L seeds are turned into E seeds, which develop normally when the inhibitor is applied for a short time during imbibition. E seeds treated for the same time period are developmentally impaired and show no radicle elongation. We suggest that the presence and late disappearance of Mvp1 in L seeds is responsible for dormancy and after-ripening of late-germinating ice plant seeds.
- 日本遺伝学会の論文
著者
-
Bohnert Hans
Department Of Biochemistry The University Of Arizona Biosciences West Tucson:department Of Plant Sci
-
Bohnert Hans
Departments Of Biochemistry Molecular And Cellular Biology And Plant Sciences The University Of Ariz
-
Fukuhara Toshiyuki
Laboratory Of Molecular And Cellular Biology Tokyo University Of Agriculture & Technology
-
Fukuhara Toshiyuki
Laboratories Of Molecular And Cellular Biology Department Of Applied Biological Sciences Tokyo Unive
関連論文
- RNA-Dependent RNA Polymerase Activity Associated with Endogenous Double-Stranded RNA in Rice
- The Expression of an Aquaporin Promoter from Mesembryanthemum crystallinum in Tobacco
- Expression of an Aquaporin Promoter from Mesembryanthemum crystallinum in Tobacco
- Gene Expression in Suspension Culture Cells of The Halophyte Distichlis spicata during Adaptation to High Salt
- ORIGIN AND EVOLUTION OF ENDOGENOUS DOUBLE-STRANDED RNAS IN PLANTS
- Origin and Evolution of the Endogenous Double-Stranded RNAs in Plants
- Distinct Cellular and Organismic Responses to Salt Stress : ENVIRONMENTAL AND STRESS RESPONSES
- Cell-Specific Expression of Genes of the Lipid Transfer Protein Family from Arabidopsis thaliana
- Expression of the PIP Aquaporin Promoter-MipA from the Common Ice Plant in Tobacco
- The presence of double-stranded RNAs in Alternaria alternata Japanese pear pathotype is associated with morphological changes
- The expression of a Vp1-like gene and seed dormancy in Mesembryanthemum crystallinum.
- Double-Stranded RNA in Rice