The specificity of certain rhizobia to infect only particular plants is in part due to the
A) abundance of nutrients present in the soil.
B) nifH genes they possess.
C) rhizobial lipids that act as signaling molecules.
D) season (time of year).

Question

Quizplus · Accepted Answer

Rhizobial lipids act as signaling molecules and are involved in the recognition and infection of specific host plants. This specificity is important for establishing a successful symbiotic relationship and optimizing nitrogen fixation.

The Specificity of Certain Rhizobia to Infect Only Particular Plants