File:Gymnosperm Stem Resin Duct in One Year Pinus (35924405480).jpg
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cross section: Pinus stem magnification: 400x Conspicuous resin ducts are found in the cortex, primary and secondary xylem, but rarely the pith. The ducts are surrounded by secretory parenchyma that produces resins and many toxic terpenes including the turpentines. This antiseptic material solidifies when exposed to air, acting to seal wounds, to protect the plant from fungi, insect and bacterial infection and to discourage herbivores. Some secretory cells enlarge into dark staining tyloses that block the resin dusts. Visit the BCC Bioscience Image featuring the Microscopic World of Plants. <a href="http://www.berkshirecc.edu/biologyimages" rel="nofollow">www.berkshirecc.edu/biologyimages</a> |
| Date | |
| Source | Gymnosperm Stem: Resin Duct in One Year Pinus |
| Author | Berkshire Community College Bioscience Image Library |
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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This image was originally posted to Flickr by bccoer at https://flickr.com/photos/146824358@N03/35924405480 (archive). It was reviewed on 22 June 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero. |
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| current | 23:53, 22 June 2018 | | 3,264 × 1,840 (960 KB) | Meisam (talk | contribs) | Transferred from Flickr via #flickr2commons |
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