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The term bark is used here to refer collectively to vascular cambium, phloem, cortex and periderm.
Trees were classed as dead if they were leafless and with a complete ring of dead cambium at breast height.
Furthermore, we investigated the relationship between vegetative phenology and cambium growth.
Recently broken branch stumps were defined as those without shed bark or signs of cambium callus growth around the branch stump base.
Cells differentiated in the vertical axis in a manner similar to that of the fusiform initials of the vascular cambium.
Once the bark has dried to below 55% moisture content, larval penetration to the cambium and survival is greatly improved.
For each stem, the amount of bark (referring collectively to vascular cambium, phloem, cortex and epidermis) eaten by each weevil was measured after removing surface resin as described below.
Tree death was determined by an absence of foliage and lack of sap in the cambium.
They bore into the cambium of the trunk, branches, and twigs of their host plant.
The inner bark cambium and phloem tissues are living, and form a new protective layer of cells as the outer bark pulls apart.
The function of cork cambium is to produce the cork, a tough protective material.
The plant has a large central medulla and a single vascular bundle containing the xylem, phloem and cambium.
They bore in the cambium under the bark of the host plant, producing pitch masses on the trunk.
The cork cambium gives rise to thickened cork cells to protect the surface of the plant and reduce water loss.
Inside the phloem is a layer of undifferentiated cells one cell thick called the vascular cambium layer.