I have followed some research paper and found that some plants having root nodules shows hyphal infection but do not shows vesicles ant arbuscules. What is the reason behind it.
We can never know the 'reason' unless the plants could speak or God told us (it is a teleological question). But obviously those structures are not necessary for survival :)
i am also observed in many plants. when your collected sample is old then many time vesicles and arbuscles not seen.@j c tarafdar @ Andrew Paul McKenzie Pegman @Sarojan Patole