Question

explain the process of rhizobium infection

Accepted Answer

1 rhizobium multiply and colonize the surroundings of the root

2 the rhizobia get attached to the epidermal and root hair cells

3 the root hairs curl and the bacteria invade the root hair

4 infection thread is produced carrying the bacteria into the cortex of the root

5 in the coetex of the root, they INITIATE NODULE FORMATION

6 bacteria are NOW Released from the thread INTO the cells

7 THIS leads to the DIFFERENTIATION of specialised nitrogen fixing cells

8 The nodule thus formed establishes a DIRECT VASCULAR CONNECTION with the host for exchange of nutrients

Root Cells Bacteria Rhizobium Infection Hair Thread Nodule