Gene concerning brassinosteroid-sensitivity of plants and...

Multicellular living organisms and unmodified parts thereof and – Plant – seedling – plant seed – or plant part – per se – Higher plant – seedling – plant seed – or plant part

Reexamination Certificate

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C536S023600, C435S320100, C435S410000

Reexamination Certificate

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07135625

ABSTRACT:
The present inventors successfully produced rice dwarf mutant d61 and also isolated the OsBRI1 gene which corresponds to a region in the d61 locus. OsBRI1 is found to increase plant brassinosteroid sensitivity. Moreover, the present inventors showed that OsBRI1 functions in growth and development process of rice, such as, internode elongation by inducing internode cell elongation and the inclination of the lamina joint. By introducing antisense nucleotides or dominant negative of OsBRI1, the present inventors produced transgenic rice plants whose phenotype was modified.

REFERENCES:
patent: 6037522 (2000-03-01), Dong et al.
patent: WO 97/35986 (1997-10-01), None
Kano-Murakami et al (1993, FEBS 334:365-368).
Wang et al (2005, Developmental Cell 8:855-865).
Li, Jianming and Chory, Joanne, “A Putative Leucine-Rich Repeat Receptor Kinase Involved In Brassinosteroid Signal Transduction”Cell, Sep. 5, 1997, pp. 929-938, vol. 90.
Yano, Masahiro et al. “Hd1, a Major Photoperiod Sensitivity Quantitative Trait Locus in Rice, Is Closely Related to the Arabidopsis Flowering Time Gene CONSTANS”The Plant Cell, Dec. 2000, pp. 2473-2483, vol. 12.
Reeck, G.R. et al. “‘Homology’ in proteins and nucleic acids: A terminology muddle and a way out of it”Cell, 1987, 50:667.

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