Root Nodules On The Roots Of White Clover
by Dr Jeremy Burgess/science Photo Library
Title
Root Nodules On The Roots Of White Clover
Artist
Dr Jeremy Burgess/science Photo Library
Medium
Photograph - Photograph
Description
Macrophotograph showing root nodules on the roots of white clover, Trifolium repens, caused by the nitrogen fixing bacteria Rhizobium trifolii. The bacteria convert atmospheric 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, & are renamed bacteroids. The nodule consists of a central region filled with bacteroids surrounded by a spongy region, the cortex.
Uploaded
September 21st, 2018
Embed
Share
Comments
There are no comments for Root Nodules On The Roots Of White Clover. Click here to post the first comment.