Studies of a soybean plant ( Glycine max ) and the bacterium Bradyrhizobium japonicum have shown that after the bacterium enters the root, cells of the root cortex begin to divide in response to ____.

Question

Quizplus · Accepted Answer

The bacterium Bradyrhizobium japonicum enters the root of the soybean plant and induces the root cortex cells to divide in response to nod gene products that the bacterium produces. These nod genes are essential for the initiation of the symbiotic relationship between the bacterium and the soybean plant, leading to the formation of root nodules where nitrogen fixation takes place.

Studies of a Soybean Plant ( Glycine Max ) and the Bacterium