Non-lignified helical cell wall thickenings in root cortical cells of Aspleniaceae (Polypodiales): Histology and taxonomical significance

  • Leroux O
  • Bagniewska-Zadworna A
  • Rambe S
 et al. 
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Extraxylary helical cell wall thickenings in vascular plants are not well documented, except for those in orchid velamen tissues which have been studied extensively. Reports on their occurrence in ferns exist, but detailed information is missing. The aim of this study is to focus on the broad patterns of structure and composition and to study the taxonomic occurrence of helical cell wall thickenings in the fern family Aspleniaceae.

Author-supplied keywords

  • Asplenium
  • Hymenasplenium
  • anatomy
  • cell walls
  • ferns
  • non-lignified secondary cell walls

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  • O. Leroux

  • A. Bagniewska-Zadworna

  • S. K. Rambe

  • J. P. Knox

  • S. E. Marcus

  • E. Bellefroid

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