Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 320178
Title Expression of defender against apoptotic death (DAD-1) in iris and dianthus petals
Author(s) Kop, D.A.M. van der; Ruys, G.; Dees, D.; Schoot, C. van der; Boer, A.D. de; Doorn, W.G. van
Source Physiologia Plantarum 117 (2003)2. - ISSN 0031-9317 - p. 256 - 263.
Department(s) Agrotechnological Research Institute
AFSG Quality in Chains
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) programmed cell-death - molecular-cloning - mammalian oligosaccharyltransferase - flower petals - senescence - protein - homolog - suppressor - cdna - gene
Abstract The gene defender against apoptotic death (DAD-1) prevents programmed cell death in animal cells. We investigated the expression pattern of DAD-1 in petals of iris (Iris x hollandica cv. Blue Magic) and carnation (Dianthus caryophyllus cv. Etarro). DAD-1 expression in Iris petals was strongly reduced by the time of visible senescence, which occurs 4 days after flower opening. Microscopic analysis showed that most mesophyll cells had died prior to a clear decrease in DAD-1 expression and that epidermis cells started to die by that time. In carnation petals DAD-1 expression also decreased by the time of massive cell death. After ethylene treatment, DAD-1 expression in carnation again decreased concomitant with the advance in massive cell death. In conclusion, DAD-1 is not an early regulator of petal cell death. Its expression may be required for the programmed dismantling of cells, as it ceases only just prior to, or concomitant with, cell death.
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