Zeitliche Einordnung der G-Schicht-Auflagerung in den Prozess der Zellwandbildung bei Zugholzfasern in Zitterpappeln | On the chronology of g-layer formation during cell wall differentiation in tension wood fibres of poplars

Abstract

The tension wood of some deciduous trees is characterised by fibres that form an additional cell wall layer, the so-called «gelatinous layer» (g-layer). The chronology of g-layer formation in the process of cell wall differentiation and lignification was investigated using two-year old poplars (Populus tremula L.). For this purpose the pinning-method was applied. The results show that the g-layer formation probably takes place at an early stage of secondary wall formation.