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Which microorganisms are called nitrogen fixing bacteria?
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Which microorganisms are called nitrogen fixing bacteria?
Nitrogen Fixing Bacteria
Nitrogen is one of the essential elements required for plant growth. However, plants cannot absorb nitrogen directly from the atmosphere, which is made up of almost 80% nitrogen gas. Nitrogen fixation is the process of converting atmospheric nitrogen gas into a form that plants can use. This conversion is carried out by a group of microorganisms called nitrogen-fixing bacteria.
Types of Nitrogen Fixing Bacteria
- Free-living nitrogen-fixing bacteria: These bacteria are found in soil and water, and they convert atmospheric nitrogen into ammonia, which is then used by plants. Examples of free-living nitrogen-fixing bacteria include Azotobacter and Azospirillum.
- Symbiotic nitrogen-fixing bacteria: These bacteria form a symbiotic relationship with plants. They live in the root nodules of legumes such as beans, peas, and clover, and they convert atmospheric nitrogen into ammonia, which is then used by the plants. Examples of symbiotic nitrogen-fixing bacteria include Rhizobium and Bradyrhizobium.
Importance of Nitrogen Fixing Bacteria
Nitrogen-fixing bacteria play a crucial role in maintaining the fertility of the soil. They help in the production of organic matter, which improves soil structure and water-holding capacity. These bacteria also help in reducing the need for nitrogen fertilizers, which are expensive and can have negative environmental impacts.
Conclusion
In conclusion, nitrogen-fixing bacteria are a group of microorganisms that play a vital role in the nitrogen cycle by converting atmospheric nitrogen gas into a form that plants can use. They are found in soil, water, and the root nodules of legumes and are essential for maintaining soil fertility and reducing the need for nitrogen fertilizers.
Community Answer
Which microorganisms are called nitrogen fixing bacteria?
The microorganism is Rhizobium which is found in leguminous plant in the root nodules in the process of nitrogen Fixation
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Which microorganisms are called nitrogen fixing bacteria?
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Which microorganisms are called nitrogen fixing bacteria? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Which microorganisms are called nitrogen fixing bacteria? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which microorganisms are called nitrogen fixing bacteria?.
Which microorganisms are called nitrogen fixing bacteria? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Which microorganisms are called nitrogen fixing bacteria? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which microorganisms are called nitrogen fixing bacteria?.
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