Question

The most thoroughly studied of the known bacteria-plant interactions is the

• A. Gall formation on certain angiosperms by Agrobacterium
• B. Nodulation of Sesbania stems by nitrogen-fixing bacteria
• C. Plant growth stimulation by phosphate– solubilising bacteria
• D. Cyanobacterial symbiosis with some aquatic ferns

Answer 1

Answer: (A)

Gall formation on certain angiosperms by Agrobacterium

Answer 2

Plants and bacteria engage in various forms of interactions, and these interactions can have beneficial, harmful, or neutral effects on the plants involved. Additionally, the impact of a bacterium on a plant may change depending on the prevailing soil conditions. Among these interactions, the Agrobacterium crown gall phenomenon stands out as one of the most extensively researched and well-documented cases of bacterial-plant interactions. This bacterium possesses a sizable Ti plasmid, which serves as a natural genetic engineering tool in the field of plant genetic engineering.