Reorientation of Microfibrils and Microtubules at the Outer Epidermal Wall of Maize Coleoptiles During Auxin-Mediated Growth

We investigate the hypothesis that auxin controls the extensibility of this wall by changing the orientation of newly deposited microfibrils through a corresponding change in the orientation of cortical microtubules

R. Bergfeld

2014

Scholarcy highlights

  • Auxin-mediated elongation growth of isolated subapical coleoptile segments of maize is controlled by the extensibility of the outer cell wall of the outer epidermis
  • We investigate the hypothesis that auxin controls the extensibility of this wall by changing the orientation of newly deposited microfibrils through a corresponding change in the orientation of cortical microtubules
  • On the basis of electron micrographs it is shown that cessation of growth after removal of the endogenous source of auxin is correlated with a relative increase of longitudinally orientated microfibrils and microtubules at the inner wall surface
  • Reinduction of growth by exogenous auxin is correlated with a relative increase of transversely orientated microfibrils and microtubules at the inner wall surface
  • If the address matches an existing account you will receive an email with instructions to retrieve your username

Need more features? Save interactive summary cards to your Scholarcy Library.