Horsetail stem

Horsetail stem

B450/0175 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 29.1MB

Downloadable file size: 1.9MB

Price image Pricing

Please login to use the price calculator


Credit: EYE OF SCIENCE/SCIENCE PHOTO LIBRARY

Caption: Horsetail stem. Coloured scanning electron micrograph (SEM) of a section through the stem of a horsetail (Equisetum giganteum). Gases enter and leave the stem through the stomata (pores) in its outer layer, or epidermis (grey, upper frame). The stomata are surrounded by guard cells (green/ brown). Photosynthesis occurs in the chloroplasts (tiny green spheres such as at bottom centre) of the stem's parenchyma cells (brown). Horsetails (division Sphenophyta) are vascular plants with a hollow jointed stem and scale-like leaves. E. giganteum, which grows in the American tropics, can reach over 9 metres in length. Magnification: x400 at 6x6cm size. x600 at 4x5"

Release details: Model release not required. Property release not required.

Keywords: biology, botany, chloroplasts, epidermis, equisetum giganteum, guard cell, horsetail stem, nature, parenchyma, plant, pteridophyte, pteridophytes, scanning electron micrograph, sectioned, sem, sphenophyta, stomata, tropical american

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.