The research focused on the formation and deposition of the cellulose and hemicelluloses in the cell wall.
Investigations were needed on the variation in the orientation of cellulose microfibrils, i.e. the microfibrillar angle (MFA) in the fibre cell wall. The purpose was to further develop techniques for measuring MFA, like X-ray diffraction and synchrotron radiation.
The genetic and environmental control of the orientation of microfibrils was also an important aspect to be studied.
The chemistry of polyoses (hemicelluloses) and interaction between different macromolecules in the cell wall were investigated and discussed in this group. In cooperation with Working Group 3 and Working Group 4, reaction woods representing extreme cases of cell wall organisation was given special attention, especially the gelatinous fibres of tension wood characterised by very high cellulosic content.