Interdisciplinary approaches can help advancing our knowledge on muticellular organism development, as recent examples in the literature have shown. These approaches can make use of computational and theoretical tools borrowed from statistical and nonlinear physics and of molecular and cell biology techniques. In this talk I will focus on the interdisciplinary approach we have used to study the development of the vascular tissue in plant shoots. The plant vascular system connects distant organs within a plant and provides transport and support capabilities that are essential for plant growth and development. In the shoot of Arabidopsis, the vasculature forms a periodic pattern made of six units on average. I will present our recent results on how hormones control the periodicity and unit number of this pattern, with an emphasis on the interplay between analyses of non-linear pattern formation dynamics and of features and phenotypes of wild-type and mutant plants.
References:
Ibañes M, Fàbregas N, Chory J, Caño-Delgado AI. Brassinosteroid signaling and auxin transport are required to establish the periodic pattern of Arabidopsis shoot vascular bundles. PNAS 106(32):13630-5 (2009).
Fàbregas N, Ibañes M, Caño-Delgado AI. A Systems Biology approach to dissect the contribution Brassinosteroid and Auxin hormones to vascular patterning in the shoot of Arabidopsis thaliana. Plant Signaling& Behaviour (in press).
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