The mechanism of improved aeration due to gas films on leaves of submerged rice

P. Verboven, Ole Pedersen, Q. Ho, B.M. Nicolaï, Tim Colmer

    Research output: Contribution to journalArticle

    28 Citations (Scopus)

    Abstract

    © 2014 John Wiley & Sons Ltd. Some terrestrial wetland plants, such as rice, have super-hydrophobic leaf surfaces which retain a gas film when submerged. O2 movement through the diffusive boundary layer (DBL) of floodwater, gas film and stomata into leaf mesophyll was explored by means of a reaction-diffusion model that was solved in a three-dimensional leaf anatomy model. The anatomy and dark respiration of leaves of rice (Oryza sativaL.) were measured and used to compute O2 fluxes and partial pressure of O2 (pO2) in the DBL, gas film and leaf when submerged. The effects of floodwater pO2, DBL thickness, cuticle permeability, presence of gas film and stomatal opening were explored. Under O2-limiting conditions of the bulk water (pO2
    Original languageEnglish
    Pages (from-to)2433-2452
    JournalPlant, Cell and Environment
    Volume37
    Issue number10
    DOIs
    Publication statusPublished - 2014

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