Nodules of Rhizobium leguminosarum, the nitrogen- fixing bacteria, on the roots of the French bean, Phaseolus vulgaris. The bacteria are found on the roots & root hairs of certain leguminous plants (peas, beans, clover) that are unable to convert atmospheric nitrogen into organic nitrogen compounds. In a symbiotic relationship the bacteria convert nitrogen for the plants & in return receive nourishment for themselves. Magnification X1.2 (at 35mm size).

Photo website with Rights Managed and Royalty Free stock photos, images, illustrations and footage available for download immediately for commercial and editorial uses. Aflo is a leading independent supplier and producer of stock pictures and visual content. Search and find high quality images and video for design, print, web-use and publishing. Buy photos from our extensive collection of model released and property released sports images. Search some of the most beautiful travel and landscape pictures from our own photographers and license from our large collection of content, modern and archive, focusing on Japan. We provide free research. Register for personal account management and for full use of our Stock Photography website and start to download images now.