Skip to main content
sales@mediastorehouse.com
Framed Pictures, Canvas Prints
Posters & Jigsaws since 2004
Home > All Images > 1987 > October

October Gallery

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 5 pictures in our October collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.


Root nodule of white clover plant Featured October Print

Root nodule of white clover plant

False-colour scanning electron micrograph of a root nodule on the white clover plant, Trifolium repens, caused by the nitrogen-fixing bacteria Rhizobium trifolii. The bacteria convert atmosph- eric nitrogen into a usable organic form, something the clover 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 up, & become known as bacteroids. The nodule consists of a central region filled with bacter- oids surrounded by a spongy region, the cortex, seen here. Magnification: x6 at 35mm size

© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY.