An Essay on Juvenility, Phase Change, and Heteroblasty in Seed Plants
@article{Jones1999AnEO, title={An Essay on Juvenility, Phase Change, and Heteroblasty in Seed Plants}, author={Cynthia S. Jones}, journal={International Journal of Plant Sciences}, year={1999}, volume={160}, pages={S105 - S111} }
Phase change (the change from nonreproductive to reproductive status) and heteroblasty (ontogenetic changes in vegetative metamers) are two determinants of longitudinal asymmetry in plants. These concepts are critically important to understanding the regulation of plant development as well as morphological evolution and life‐history variation. Since Goebel, the two have been conflated. This article questions how phase change and heteroblasty are delimited and explores some of the problems that…
111 Citations
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- 2001
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A review of the available literature shows that dissociation and addition/deletion do occur in association with changes in flowering phenology, and that response to selection for earlier or later flowering is potentially constrained.
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- BiologyThe Botanical Review
- 2010
This review develops a conceptual framework for future scientific work, proposes a quantitative index of heteroblasty, and discusses the evidence for developmental regulation, functional significance, and evolutionary implications ofheteroblasty to provide a stimulating basis for further research with this fascinating group of plants.
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- Environmental Science
- 2010
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- 2014
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- 2006
The prolonged juvenile phase of the Canary Island pine is interpreted as an unavoidable trade-off for the high tolerance of adults to harsh environments through differential resource allocation and the cost of sclerophylly and resprouting.
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