CIL:40389, Helianthus annuus. CIL. Dataset

Licensing

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*CIL – Cell Image Library accession number. Please use this to reference an image.

CIL:40389^* Cite

Description

Scanning electron microscope image of cross-section through Helianthus annuus (sunflower) stem. The image shows the outer epidermal layer, followed by the cortex and then large vascular bundles. The vascular bundles have vascular cambium between the phloem (nearest the cortex) and xylem. This image is part of a group on botanical stems (CIL:40378-40395).

Technical Details

Image collected on a Zeiss DSM 962 SEM. Complete specimen preparation protocol available at: http://remf.dartmouth.edu:8080/EM-Wiki/36

Biological Sources

NCBI Organism Classification: Helianthus annuus
Cellular Component: cortex

Biological Context

Biological Process
Plant Growth: phloem; xylem; vascular bundles; vascular cambium

Attribution

Names: Louisa Howard
Link: Dartmouth College EM Facility

Citation

Digital Object Identifier (DOI): doi:10.7295/W9CIL40389
Archival Resource Key (ARK): ark:/b7295/w9cil40389

Grouping This image is part of a group.

Imaging

Image Type: recorded image
Image Mode: scanning electron microscopy (SEM)
Parameters Imaged: elastic scattering of electrons
Source of Contrast: differences in adsorption or binding of stain
Visualization Methods: osmium tetroxide; shadowing and plating
Processing History: unprocessed raw data

Sample Preparation

Methods: glutaraldehyde fixed tissue; ethanol dehydration; critical_point dried specimen
Relation To Intact Cell: sectioned tissue

Dimensions

Spatial Axis	Image Size	Pixel Size
X	1024px	——
Y	1049px	——