When these microbes infect the roots, the plant develops knob-like structures called nodules around them. Inside the nodules, ...

Aughtry, J D. 1948. Effect of genetic factors in Medicago on symbiosis with Rhizobium. Cornell Univ Agric Expt Sta Mem, 280, 18 pp.

In research published in The Plant Cell, Dr Alexander Jones' research group at the Sainsbury Laboratory Cambridge University (SLCU) and Professor Giles Oldroyd's group at the Crop Science Centre ...

But, before this discovery, it was understood that it was made by marine plants photosynthesising ... produced by naturally occurring metallic “nodules” which split seawater - H2O - into ...