Question

All of the following statements concerning the
Actinomycetous filamentous soil bacterium
Frankia are correct except the Frankia –
(a) can induce root nodules on many plant
species
(b) cannot fix nitrogen in the free-living state
(c) like Rhizobium, it usually infects, its host plant
through root hair deformation and stimulates
cell proliferation in the host's cortex
(d) forms specialized vesicles in which the
nitrogenase is protected from oxygen by a
chemical barrier involving triterpenoids

Answer 1

Answer:

like Rhizobium ,it usually infects,it's host plant through root haire deformation and stimulates cell proliferation in the hosts xortex

Answer 2

The statement concerning the Actinomycetous filamentous soil bacterium Frankia are correct except the Frankia.

• option:(b) is correct

*Frankia is , a nitrogen fixing bacteria.

* It includes root nodules like Rhizobium.

*It is associated with the root nodules of many non legume plant. Example: Rubus, Alnus.

*It cannot fix nitrogen in free state.