Methylation of gibberellins by Arabidopsis GAMT1 and GAMT2.

  title={Methylation of gibberellins by Arabidopsis GAMT1 and GAMT2.},
  author={Marina Varbanova and Shinjiro Yamaguchi and Yue Yang and Katherine K. McKelvey and Atsushi Hanada and Roy Borochov and Fei Yu and Yusuke Jikumaru and Jeannine R Ross and Diego Cort{\'e}s and Choong Je Ma and Joseph P Noel and Lew Mander and Vladimir Shulaev and Yuji Kamiya and Steven R. Rodermel and David I Weiss and Eran Pichersky},
  journal={The Plant cell},
  volume={19 1},
Arabidopsis thaliana GAMT1 and GAMT2 encode enzymes that catalyze formation of the methyl esters of gibberellins (GAs). Ectopic expression of GAMT1 or GAMT2 in Arabidopsis, tobacco (Nicotiana tabacum), and petunia (Petunia hybrida) resulted in plants with GA deficiency and typical GA deficiency phenotypes, such as dwarfism and reduced fertility. GAMT1 and GAMT2 are both expressed mainly in whole siliques (including seeds), with peak transcript levels from the middle until the end of silique… CONTINUE READING


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