Flavone synthases from Medicago truncatula are flavanone-2-hydroxylases and are important for nodulation.

  title={Flavone synthases from Medicago truncatula are flavanone-2-hydroxylases and are important for nodulation.},
  author={Juan Zhang and Senthil Subramanian and Yan-Sheng Zhang and Oliver Yu},
  journal={Plant physiology},
  volume={144 2},
Flavones are important copigments found in the flowers of many higher plants and play a variety of roles in plant adaptation to stress. In Medicago species, flavones also act as signal molecules during symbiotic interaction with the diazotropic bacterium Sinorhizobium meliloti. They are the most potent nod gene inducers found in root exudates. However, flavone synthase II (FNS II), the key enzyme responsible for flavone biosynthesis, has not been characterized in Medicago species. We cloned two… CONTINUE READING
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