Description: Trifolium pratense Rhizobium root nodule. FiG. 5o.—Longitudinal section through red clover rootlet, showing tubercle formation due to the root nodule microbe, Rhizobium mutabile. The tubercle is only partiaUy developed, a. root hairs. These do not develop on the nodule. b, the normal root parenchyma, c, vascular tissue, d, infected area, also showing the infectmg strands (Infectionsfäden). The cells are filled with bacteria, e. apical areas, the growmg areas of the tubercle. Date: 1920 (1920s). Source: https://www.flickr.com/photos/internetarchivebookimages/20727185581/ Image from page 184 of "Pharmaceutical bacteriology" (1920) Authors:. Author: Schneider, Albert, 1863-1928.
Description: English: The bacterium Rhizobium tropici strain BR816 streaked to single colonies on Tryptone-Yeast Extract (TY) agar. Português: Bactéria Rhizobium tropici estriada em placa de ágar Extrato de Levedura Triptona (LT). Date: 31 July 2010. Source: Own work. Author: Ninjatacoshell. Other versions: Derivative works of this file: Rhizobium tropici strain BR816 on TY agar-2.JPG.
Description: English: Oxytropis dinarica ssp. dinarica var. macrocarpa leg P.Cikovac Nodule on Taproot. Date: 25 July 2015. Source: Own work. Author: P.Cikovac.