Petal Senescence: New Concepts for Ageing Cells

E.J. Woltering, W.G. van Doorn

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Senescence in flower petals can be regarded as a form of programmed cell death (PCD), being a process where cells or tissues are broken down in an orderly and predictable manner, whereby nutrients are re-used by other cells, tissues or plant parts. The process of petal senescence shows many similarities to autophagic PCD in animal cells including a massive breakdown of protein, DNA and RNA, the formation of autophagic vacuoles for the breakdown of cytoplasm and organelles therein and, the eventual rupture of these vacuoles that kills the cell. Chromatin condensation and DNA and nuclear fragmentation (traditionally considered being apoptotic-like features) are observed in both autophagic animal cells and in senescing petal cells. We present a conceptional model underlying petal senescence that integrates elements that have been associated with both apoptotic and autophagic types of PCD
Original languageEnglish
Pages (from-to)161-169
JournalActa Horticulturae
Volume847
DOIs
Publication statusPublished - 2009

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corolla
apoptosis
cells
vacuoles
autophagy
DNA
plant anatomy
organelles
chromatin
animals
cytoplasm
RNA
nutrients
proteins
tissues

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Woltering, E.J. ; van Doorn, W.G. / Petal Senescence: New Concepts for Ageing Cells. In: Acta Horticulturae. 2009 ; Vol. 847. pp. 161-169.
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Petal Senescence: New Concepts for Ageing Cells. / Woltering, E.J.; van Doorn, W.G.

In: Acta Horticulturae, Vol. 847, 2009, p. 161-169.

Research output: Contribution to journalArticleAcademicpeer-review

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