Abstract
The paper describes the appearance, properties, and ultrastructure of red oak heartwood containing dark discolorations. The possible cause and origin of discoloration are discussed, although the etiology of the stain is not explicit. It was found that the heartwood stain moves from ray parenchyma to adjoining vessels, fibers, and tracheids by the pit membranes and plasmodesmata. It appears that there may be extended openings in the pit membrane which may facilitate the movement of materials through such a specialized filamentous structure. Internal checking or honeycomb as an indirect result of the discoloring material is mentioned.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
