Plants embrace a stepchild: the discovery of peptide growth regulators.

@article{Franssen1998PlantsEA,
  title={Plants embrace a stepchild: the discovery of peptide growth regulators.},
  author={Henk J. Franssen},
  journal={Current opinion in plant biology},
  year={1998},
  volume={1 5},
  pages={384-7}
}
Over the past decade, peptides have been added to the collection of signalling molecules in plants. As the impact of peptide hormones in non-plants is enormous, a comparison of plant and non-plant peptide signal molecules at this stage deserves our attention-not only to reveal common and unique features, but also to point to new avenues of future research on plant hormones.