Contrasting dynamics of radial O2-loss barrier induction and aerenchyma forma…

Background and Aims Many wetland species form aerenchyma and a barrier to radial O2 loss (ROL) in roots. These features enhance internal O2 diffusion to the root apex. Barrier formation in rice is induced by growth in stagnant solution, but knowledge of the dynamics of barrier induction and early anatomical changes was lacking. Methods ROL barrier induction in short and long roots of rice (Or…