SEM of root nodule on the pea plant

SEM of root nodule on the pea plant

B238/0013 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 26.9MB

Downloadable file size: 2.0MB

Price image Pricing

Please login to use the price calculator


Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY.

Caption: Scanning electron micrograph (SEM) of a root nodule on the pea plant, Pisum sativum, caused by the nitrogen fixing bacteria Rhizobium leguminosarum. The bacteria convert atmospheric nitrogen into a usable organic form, something the pea cannot do itself, but which is imperative for its survival. Bacteria infect the plant through root hairs, forming an infection thread, which conveys them from the entry point to the nodule site. Here they divide repeatedly, swell and become known as bacteroids. The nodule consists of a central region filled with bacteroids surrounded by a loose, spongy region, the cortex, seen here. Magnification: X120 at 10x8cm, X17 at 35mm size.

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

Keywords: bacteria, bacterial, bacteriology, bacterium, micro-organisms, microbe, microbes, microbiology, nitrogen-fixing, nitrogen-fixing bacteria, pisum sativum, rhizobium leguminosarum, scanning electron micrograph, sem, soil, symbiosis

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