Accumulation and Function of Proline in Pollen Accumulation and Function of Proline in Pollen Accumulation and Function of Proline in Pollen
نویسنده
چکیده
The accumulation of proline in anthers of Petunia was followed during flower bud development. Accumulation proceeded continuously from the microspore stage to anthesis except for an intervening period when bud length was between 15 and 35 mm. The second rise in proline content co incided with the stage of anther desiccation. The metabolism of proline 3 lA was studied in isolated branches fed with [ Hlproline and [ C]glutamine. Three factors were found to be involved in building up the proline content of the anthers: I. transport of proline from the leaves; II. transport of precursors, e.g. glutamate, and conversion to proline; III. high stability of proline in the anthers.
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