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
2006-12-26
2006-12-26
Baum, Stuart F. (Department: 1638)
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
C800S278000, C800S290000, C435S419000, C435S320100, C536S023100, C536S023600
Reexamination Certificate
active
07154028
ABSTRACT:
An objective of the present invention is to provide DNAs encoding novel plant proteins having a gibberellin (GA) 2-oxidation activity. Another objective is to modify plant height by utilizing these DNAs for regulating the gibberellin content.PCR was performed using degenerate primers, and novel OsGA2ox2 and OsGA2ox3 genes were obtained. The present inventors discovered that unlike products of other GA2-oxidases such as OsGA2ox1, the product of OsGA2ox3 catalyzes the two-step oxidation of GA20to GA29and then of GA29to GA29-catabolite. In addition, the present inventors also found that the growth of the transgenic rice plants expressing OsGA2ox3 was suppressed as compared to control plants.
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Kayano Toshiaki
Kobayashi Masatomo
Matsuoka Makoto
Saito Tamio
Sakai Miho
DiGiorgio, Esq. Jeanne M.
Hanley, Esq. Elizabeth A.
National Agriculture and Bio-Oriented Research Organization
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