File:Herbaceous Dicot Root Mature Ranunculus (35613584240).jpg
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Summary
[edit]DescriptionHerbaceous Dicot Root Mature Ranunculus (35613584240).jpg |
cross section: Mature Ranunculus root common name: Buttercup magnification: 100x <a href="http://blogs.berkshirecc.edu/bccoer" rel="nofollow">Berkshire Community College Bioscience Image Library</a> The single layered epidermis lacks any significant cuticle. Root hairs appear as unicellular extensions of epidermal cells. The cortex is well-developed and divided into two zones; a narrow outer layer of closely packed smaller parenchyma cells (exodermis) and a wide inner layer of larger open aerenchyma cells The inmost area of the cortex is bounded by an endodermis or starch sheath with larger barrel shaped cells and thickened walls that mark the casparian strip. Within the endodermis occasional small passage cells serve to transport of water into the stele or vascular bundle. The stele is bound on its outmost edge by is a pericycle of single layered thin walled parenchyma cells. The closed vascular bundles are arranged radially with arms of exarch xylem interspaced with patches of phloem and parenchymous conjunctive tissue. These tissues may become sclerenchymous in older roots Vascular cambium is also absent, preventing secondary growth of the root. |
Date | |
Source | Herbaceous Dicot Root: Mature Ranunculus |
Author | Berkshire Community College Bioscience Image Library |
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This image was originally posted to Flickr by bccoer at https://flickr.com/photos/146824358@N03/35613584240 (archive). It was reviewed on 5 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero. |
5 October 2019
Files from Berkshire Community College Bioscience Image Library Flickr stream uploaded by Netha Hussain
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current | 19:41, 5 October 2019 | ![]() | 3,264 × 1,840 (2.04 MB) | Netha Hussain (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Date and time of data generation | 16:04, 12 July 2017 |
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Software used | Windows Photo Editor 10.0.10011.16384 |
File change date and time | 17:26, 17 July 2017 |
Date and time of digitizing | 16:04, 12 July 2017 |
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DateTimeDigitized subseconds | 00 |
Color space | sRGB |