Plant cortical microtubule dynamics and cell division plane orientation

Promotie

Plant cortical microtubule dynamics and cell division plane orientation

Promovendus B (Bandan) Chakrabortty MSc
Promotor prof.dr.ir. BJG (Ben) Scheres
prof.dr. BM (Bela) Mulder
Organisatie Wageningen University, Wageningen Plant Research, Experimental Plant Sciences (EPS)
Datum

di 30 mei 2017 11:00 tot 12:30

Locatie Aula, gebouwnummer 362
Generaal Foulkesweg 1
362
6703 BG Wageningen
0317-483592

Samenvatting (Engels)


This thesis work aimed at a better understanding of the molecular basis of oriented cell division in plant cell. As, the efficiency of plant morphogenesis depends on oriented cell division, this work should contribute  towards a fundamental understanding of the  molecular basis of efficient plant morphogenesis. We describe a modelling framework that allows us to simulate microtubule dynamics on the surface of arbitrary shapes. We further explored the generic role of microtubule regulatory effects  such as shape anisotropy, edge-catastrophe and enhanced microtubule stabilization on the orientation of the microtubule array. Through a  combined approach of experimental observations of cell division patterns and simulation of microtubule dynamics, we describe a possible molecular basis of oriented cell division during Arabidopsis early embryogenesis. We also infer the necessity of incorporating anisotropic growth/stress response of microtubules towards understanding division plane orientation in the growing epidermal root cells of Arabidopsis.