Contrasting dynamics of radial O2-loss barrier induction and aerenchyma formation in rice roots of two lengths

摘要

Background and AimsMany 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.