Brassinosteroids regulate grain filling in rice.

  title={Brassinosteroids regulate grain filling in rice.},
  author={Chuan-yin Wu and Anthony N. Trieu and Parthiban Radhakrishnan and Shing F. Kwok and Sam Harris and Ke Zhang and Jiulin Wang and Jianmin Wan and Huqu Zhai and Suguru Takatsuto and Shogo Matsumoto and Shozo Fujioka and Kenneth A. Feldmann and Roger I. Pennell},
  journal={The Plant cell},
  volume={20 8},
Genes controlling hormone levels have been used to increase grain yields in wheat (Triticum aestivum) and rice (Oryza sativa). We created transgenic rice plants expressing maize (Zea mays), rice, or Arabidopsis thaliana genes encoding sterol C-22 hydroxylases that control brassinosteroid (BR) hormone levels using a promoter that is active in only the stems, leaves, and roots. The transgenic plants produced more tillers and more seed than wild-type plants. The seed were heavier as well… CONTINUE READING