Abstract:
:Changes in cell number during the early period of tomato fruit development were analysed by means of a deterministic model of cell multiplication. The period commenced at the seed stage with one theoretical cell undergoing intensive cell division, and ended when the cell number became nearly constant. The model takes into consideration the proliferative activity of the fruit cell population which, a few days before flower anthesis, begins to decrease progressively after each mitotic cycle. Model parameters, namely the time at which proliferative activity diminishes, its rate of decrease and the length of the cell cycle, were estimated by fitting the model to observed cell population dynamics in tomato fruits growing in three different positions on the truss. It is hypothesized that the molecular mechanism responsible for the cessation of mitosis in growing fruits is associated with shortening of telomeric ends of nuclear DNA, as suggested previously for other growing cell populations.
journal_name
Ann Botjournal_title
Annals of botanyauthors
Bertin N,Genard M,Fishman Sdoi
10.1093/aob/mcg111keywords:
subject
Has Abstractpub_date
2003-07-01 00:00:00pages
65-72issue
1eissn
0305-7364issn
1095-8290pii
92/1/65journal_volume
92pub_type
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