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Scientific article
English

Wood formation in in vitro propagated walnut shoots in relation with root formation and development

Published inActa botanica gallica, vol. 151, no. 1, p. 45-53
Publication date2004
Abstract

Lignification and xylem cell multiplication for wood formation were examined in in vitro propagated walnut shoot cuttings after transfer on an auxin-containing rooting medium for one week and subsequently during root development in vermiculite in the absence of growth regulators. Lignification in the shoot stems started immediately after the exogenous auxin treatment which implied changes in peroxidase activity and in free IAA levels. Sustained lignification required the completion of the following rooting phases. The lignin was exclusively located in xylem cells, the number of which increased with the number of developing roots. The mutual interactions between the aerial parts of the plants and their roots are discussed.

Keywords
  • Auxin
  • Lignification
  • Rooting
  • Walnut
Citation (ISO format)
KEVERS, C. et al. Wood formation in in vitro propagated walnut shoots in relation with root formation and development. In: Acta botanica gallica, 2004, vol. 151, n° 1, p. 45–53. doi: 10.1080/12538078.2004.10516019
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ISSN of the journal1253-8078
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