Biochemical studies on YUCCA flavin monooxygenases in auxin biosynthesis(The JSCRP Award for the Encouragement of Young Scientists,The Society Awards Lecture)

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  • オーキシン生合成に関わるフラビン酵素YUCCAの機能解明(奨励賞,受賞業績)
  • 奨励賞 オーキシン生合成に関わるフラビン酵素YUCCAの機能解明
  • ショウレイショウ オーキシン セイゴウセイ ニ カカワル フラビン コウソ YUCCA ノ キノウ カイメイ

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Abstract

<p>A naturally occurring auxin, indole-3-acetic acid (IAA) regulates diverse physiological processes in plants. We have studied the biochemical role for the YUCCA (YUC) family of flavin monooxygenases in IAA biosynthesis in Arabidopsis. We uncovered TRYPTOPHAN AMINOTRANSFERASE OF ARABIDOPSIS (TAA)-mediated indole-3-pyruvic acid (IPA) pathway and placed the YUC family in this pathway. Our study elucidated the complete IAA biosynthesis pathway, in which TAAs first convert tryptophan to IPA and YUCs subsequently catalyze oxidative decarboxylation of IPA to IAA. Here we summarize the studies on biochemical and physiological functions of YUC.</p>

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