question_answer 36)

How are organisms like Pseudomonas and Thiobacillus of great significance in nitrogen cycle?  

Answer:

                  in biological nitrogen fixation, the atmospheric  gets reduced to  by nitrogenase reductase present in some prokaryotes. is then oxidises to  and  by some other bacteria (Nitrosomonas and Nitrobacter}, Various steps involved in nitrogen fixation are as follows Pseudomonas and Thiobacillus are involved in the process of gentrification. They convert nitrate  and nitrite  into free nitrogen , which is released into the atmosphere.