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Genetic Engineering of Wood Formation

Expression of bacterial IAA-biosynthetic genes in hybrid aspen (Populus tremula x P. tremuloides)
  • Hannele Tuominen
  • Olof Olsson
  • Björn Sundberg
Part of the Forestry Sciences book series (FOSC, volume 64)

Abstract

Not many years after its discovery, the plant hormone indole-3-acetic acid (IAA) was demonstrated to activate cambial growth when applied to sunflower hypocotyls (Snow, 1935). In subsequent studies it was shown that IAA is involved in the control of several aspects of secondary growth, in particular the maintenance of the vascular cambium, the production of the secondary xylem, and the regulation of xylem cell morphology (Savidge, 1983; Aloni, 1987; Little and Savidge, 1987; Lachaud, 1989; Little and Pharis, 1995). However, the exact role of IAA in controlling these processes is still controversial.

Keywords

Secondary Xylem Adventitious Root Formation Cambial Activity Hybrid Aspen Cambial Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2000

Authors and Affiliations

  • Hannele Tuominen
    • 1
  • Olof Olsson
    • 1
  • Björn Sundberg
    • 1
  1. 1.Department of Forest Genetics and Plant PhysiologySwedish University of Agricultural SciencesUmeåSweden

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