Mineral Nutrition Question 47
47. Nitrogen fixation in root nodules of Alnus is brought about by:
(a) Bradyrhizobium
(b) Clostridium
(c) Frankia
(d) Azorhizobium
Show Answer
Answer : c
Hints & Solution
(c) Nitrogen fixation in root nodules of Alnus is brought about by Frankia. It is a symbiotic nitrogen fixing bacteria in root nodules of several non-legume plants like Casuarina (Australian Pine), Myrica and Alnus (Alder).
