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Abstract Detail


From canonical to new model systems: The future of plant development

Gunawardena, Arunika [1], Lord, Christina [2], Rantong, Gaolathe [3], Dauphinee, Adrian [4].

The Lace plant as an emerging novel system to study programmed cell death.

Programmed cell death (PCD) is a genetically encoded, active process which results in the death of individual cells, tissues, or whole organs. As in animals, PCD in plants is a normal part of development throughout the life cycle, from the fertilization of the ovule to the death of the plant. One of the fascinating examples of PCD in plant development is perforation formation in lace plant (Aponogeton madagascariensis) leaves. In the lace plant, PCD is initiated in a population of cells at the center of the perforation site, and then proceeds outward through epidermal and mesophyll cells to tissue approximately five cells from the veins. The accessibility and predictability of perforation formation, the ability to perform live cell imaging due to the thin and aquatic nature of leaves, propagation of lace plant in sterile conditions, and the successful regeneration from callus tissue, make lace plant an extremely attractive and tractable system in which to study developmental PCD. The developmental signal(s), cellular and molecular mechanism(s) that regulate PCD in lace plant leaves are under current investigation.

Broader Impacts:


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Related Links:
Plant programmed cell death lab


1 - Dalhousie University, Life Science Centre, 1355 Oxford Street, Halifax, NS, B3H 4R2, Canada
2 - Dalhousie University, Biology, Department Of Biology, 1355 Oxford Street, Halifax, NS, B3H 4J1, Canada
3 - Dalhousie University, Biology, 1355, Oxford Street, Halifax, NS, B3M 4R2, Canada
4 - Dalhousie University, Biology, 1355, Oxford Street, Halifax, NS, B3M 4R2, Canada

Keywords:
Programmed cell death
Non-model species
Leaf development.

Presentation Type: Symposium or Colloquium Presentation
Session: SY10
Location: Delaware A/Hyatt
Date: Wednesday, July 11th, 2012
Time: 3:45 PM
Number: SY10006
Abstract ID:143


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