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Near-surface silica does not increase radiative heat dissipation from plant leaves

  • Lars Olof Björn
  • Shaoshan Li
Publishing year: 2011
Language: English
Publication/Series: Applied Physics Letters
Volume: 99
Issue: 2
Document type: Journal article
Publisher: AIP Publishing LLC

Abstract english

It has been suggested that plants are able to increase radiative heat dissipation from their leaves by depositing near-surface silica, in this way increasing emissivity of infrared radiation and lowering

leaf temperature. In order to test this theory, we have compared emissivity and radiative dissipation over the mid-infrared range 2.5–22.3 lm of leaves of plants that accumulate silica and plants that

do not. Our data do not support the theory that accumulation of silica increases radiative heat dissipation by plant leaves.


  • Biological Sciences
  • heat dissipation
  • mid-infrared
  • plant leaves
  • silica
  • thermal radiation


  • Photobiology
  • Photobiology-lup-obsolete
  • ISSN: 0003-6951
Lars Olof Björn
E-mail: lars_olof [dot] bjorn [at] biol [dot] lu [dot] se

Professor emeritus

Molecular Cell Biology

+46 46 222 72 53