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Question
A farmer observed white thread-like structures within the roots of some of his crop plants. These plants showed increased phosphorus absorption. The plants are likely to be associated with which of the following organisms?
A farmer observed white thread-like structures within the roots of some of his crop plants. These plants showed increased phosphorus absorption. The plants are likely to be associated with which of the following organisms?
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Solution
The correct option is D Glomus
Glomus is a fungus which forms symbiotic associations with the roots of higher plants. The association is known as mycorrhiza. It appears like white thread-like structures within the roots.
The fungal symbiont in such associations helps the plants in absorbing phosphorus from soil. Plants having such associations show several other benefits, such as resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development.
Azospirillum, Azotobacter and Rhizobium are capable of fixing atmospheric nitrogen into organic forms, which are used by plants as a nutrient. Hence they are known as nitrogen fixing bacteria.
Glomus is a fungus which forms symbiotic associations with the roots of higher plants. The association is known as mycorrhiza. It appears like white thread-like structures within the roots.
The fungal symbiont in such associations helps the plants in absorbing phosphorus from soil. Plants having such associations show several other benefits, such as resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development.
Azospirillum, Azotobacter and Rhizobium are capable of fixing atmospheric nitrogen into organic forms, which are used by plants as a nutrient. Hence they are known as nitrogen fixing bacteria.
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