Development of seeds as self-organizing units: testing the predictions

Uma Shaanker, R. ; Ganeshaiah, K. N. ; Krishnamurthy, K. S. (1995) Development of seeds as self-organizing units: testing the predictions International Journal of Plant Sciences, 156 (5). pp. 650-657. ISSN 1058-5893

Full text not available from this repository.

Official URL:


Differential development of seeds and their abortion in multi-ovulated fruits is explained by a process of self-organized movement of resource units into the developing ovules. This process involves movement of resource units would be autocatalytically favored and hence dominate over others at a rate defined by the sink-drawing ability of the ovules of a species. Such a process leads to varying levels of seed abortion that are independent of resource or pollen limitation and also predicts a positive relationship between the sink-drawing ability of a species and the extent of seed abortion in its fruits. We tested this prediction by (1) manipulating the sink-drawing ability of ovules in phaseolus vulgaris Linn., Vigna unguiculata Walp., Crotolaria medicaginea Lam., and Solanum seaforthianum Andr.; (2) analyzing the relationship between the in vivo sink-drawing ability and seed abortion in 15 species; and (3) using data from the literature. Our results seem to indicate that, as sink-drawing ability of ovules in a fruit or of a species increases, seed abortion also increases, supporting the self-organization model.

Item Type:Article
Source:Copyright of this article belongs to University of Chicago Press.
ID Code:13247
Deposited On:11 Nov 2010 06:59
Last Modified:31 May 2011 11:37

Repository Staff Only: item control page