Sexual Reproduction of Interior Spruce (Pinaceae). I. Pollen Germination to Archegonial Maturation

@article{Runions1999SexualRO,
  title={Sexual Reproduction of Interior Spruce (Pinaceae). I. Pollen Germination to Archegonial Maturation},
  author={C. John Runions and John N. Owens},
  journal={International Journal of Plant Sciences},
  year={1999},
  volume={160},
  pages={631 - 640}
}
Stages of normal sexual reproduction between pollen germination and egg maturation are described for interior spruce. These prezygotic stages were studied by light and electron microscopy in more detail than was possible in previous studies, and new observations have been made. Sperm (male gametes) formation and the organelles that accompany the sperm within the pollen tube are described. The pollen tube grows toward a lipid secretion that originates in the neck region of the archegonium… Expand
Sexual Reproduction of Interior Spruce (Pinaceae). II. Fertilization to Early Embryo Formation
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Stages of normal sexual reproduction between pollen tube penetration of the archegonium and early embryo formation are described for interior spruce by light and electron microscopy in more detail than was possible in previous studies, and new observations have been made. Expand
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Stages of normal sexual reproduction between pollen tube penetration of the archegonium and early embryo formation are described for interior spruce by light and electron microscopy in more detail than was possible in previous studies, and new observations have been made. Expand
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