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A branch collar is the "shoulder" between the branch and trunk of woody plants; the inflammation formed at the base of the branch is caused by annually overlapping trunk tissue. [1] The shape of the branch collar is due to two separate growth patterns, initially the branch grows basipetally, followed by seasonal trunk growth which envelops the ...
Plant anatomy or phytotomy is the general term for the study of the internal structure of plants.Originally, it included plant morphology, the description of the physical form and external structure of plants, but since the mid-20th century, plant anatomy has been considered a separate field referring only to internal plant structure.
Two branches, cut at different times, have regrown branch collars, but the wood inside has become wet and is being rotted by fungi. Plants respond to injury by signalling that damage has occurred, [ 11 ] by secreting materials to seal off the damaged area, [ 12 ] by producing antimicrobials to limit the spread of pathogens, [ 13 ] and in some ...
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The wood anatomy includes the study of the structure of the bark, cork, xylem, phloem, vascular cambium, heartwood and sapwood and branch collar. The main topic is the anatomy of two distinct types of wood: Softwoods [7] Hardwoods [8]
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A common malformation of a branch attachment in a tree is the inclusion of bark within the join, commonly referred to as a 'bark inclusion' or 'included bark'. This malformation is known to weaken the connection of the branch to the rest of the tree's structure, as it acts to block the formation of the axillary wood at the branch attachment's apex.