Sperm dimorphism in Nicotiana tabacum L.

  title={Sperm dimorphism in Nicotiana tabacum L.},
  author={Hui Qiao Tian and Zhaojie Zhang and Scott D Russell},
  journal={Sexual Plant Reproduction},
Sperm cells of tobacco have been intensively studied as examples of isomorphic gametes in which major cellular and organellar parameters remain statistically indistinguishable in the two sperm cells. An examination of sperm cells late in maturation, however, displays that the sperm cell associated with the vegetative nucleus becomes statistically significantly smaller than the other sperm cell in tobacco. If late divergence occurs in the two sperms of other angiosperms, sperm dimorphism may be… CONTINUE READING
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