Selective expression of a novel high-affinity transport system for acidic and neutral amino acids in the tapetum cells of Arabidopsis flowers.

@article{Lee2004SelectiveEO,
  title={Selective expression of a novel high-affinity transport system for acidic and neutral amino acids in the tapetum cells of Arabidopsis flowers.},
  author={Yong-hwa Lee and Mechthild Tegeder},
  journal={The Plant journal : for cell and molecular biology},
  year={2004},
  volume={40 1},
  pages={
          60-74
        }
}
Within the flower, microsporogenesis represents a major sink for nitrogen, but knowledge on how the imported nitrogen is transferred from the anther cell layers to developing pollen is lacking. Here, we provide information on characterization of a transporter (AtLHT2) that might play an important role in partitioning of amino acids for microspore development. Biochemical analysis in yeast showed that AtLHT2 transports proline and aspartate with high affinity. However, other neutral and acidic… CONTINUE READING
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