The basic anatomy of lateral twig insertion onto the main branch in both healthy and damaged Quercus cerris L. trees was studied. An abscission zone is always present: in healthy trees it is formed by a smaller number of cell layers than in damaged ones, where it is more evident with many layers of cells. Cells of the abscission zone are roundish, with many intercellular spaces between them; cell walls are thin, non-lignified and without secondary walls. No starch was found in cells of the abscission zone, where, instead, a few scattered calcium oxalate druses are seen.

Bellani, L., & A., B. (1995). Branchlets abscission in Quercus cerris L. related to oak decline: anatomical studies. TREES, 10, 20-23.

Branchlets abscission in Quercus cerris L. related to oak decline: anatomical studies

BELLANI, LORENZA;
1995

Abstract

The basic anatomy of lateral twig insertion onto the main branch in both healthy and damaged Quercus cerris L. trees was studied. An abscission zone is always present: in healthy trees it is formed by a smaller number of cell layers than in damaged ones, where it is more evident with many layers of cells. Cells of the abscission zone are roundish, with many intercellular spaces between them; cell walls are thin, non-lignified and without secondary walls. No starch was found in cells of the abscission zone, where, instead, a few scattered calcium oxalate druses are seen.
Bellani, L., & A., B. (1995). Branchlets abscission in Quercus cerris L. related to oak decline: anatomical studies. TREES, 10, 20-23.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/7703
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