Pistil strategies controlling pollen tube growth

  title={Pistil strategies controlling pollen tube growth},
  author={Maria Rosa Herrero and Jose Ignacio Hormaza},
  journal={Sexual Plant Reproduction},
The progamic phase appears especially well suited for pollen-pistil interaction. During this phase the pistil supports pollen germination and tube growth, and provides an adequate environment, nutrition and directional cues. However, this support does not occur indiscriminantly and some mechanisms operating in the pistil constrain pollen tube growth. An active, regulated constraint is the self-incompatibility reaction, but moderate restrictions of pollen tube growth also occur in compatible… CONTINUE READING

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