In the Establishment of Rhizobia in a Legume, Infection Threads

Question

In the establishment of rhizobia in a legume, infection threads are found in the:
A) stele.
B) cortex.
C) root hairs.
D) xylem.
E) phloem.

Accepted Answer

Infection threads are found in the root hairs during the establishment of rhizobia in a legume. This is where the bacteria enter the plant root and initiate the symbiotic relationship.