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Trends Plant Sci. 2008 May;13(5):216-20. doi: 10.1016/j.tplants.2008.02.002. Epub 2008 Mar 6.

Do perennials really senesce?

Author information

1
Departament de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Avinguda Diagonal 645, Barcelona, Spain. smunne@ub.edu

Abstract

Although senescence remains less studied in perennials than in monocarpic plants, major advances in understanding senescence in perennials have been achieved recently. This success is due not only to the use of genetic tools in woody plants but also to a renaissance of research on how perennials can live for centuries or even millennia. The particularities of perennial life are considered here, with an emphasis on how these affect senescence at different levels of organization. I conclude that although cellular and leaf senescence do share common features in monocarpic and perennial plants, the indeterminacy of meristems found in perennials begs the question of whether senescence really occurs in these organisms at the whole-plant level.

PMID:
18328774
DOI:
10.1016/j.tplants.2008.02.002
[Indexed for MEDLINE]

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