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Which one of the following helps in absorption of phosphorus from soil by plants?
A
$Anabaena$
B
$Glomus$
C
$Rhizobium$
D
$Frankia$
Detailed Solution
Many members of the fungal genus $Glomus$ form mycorrhiza, a symbiotic association with the roots of higher plants.
The fungal symbiont absorbs phosphorus from the soil and passes it to the plant.
Plants with such associations also show resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in growth.
$Anabaena$, $Rhizobium$ and $Frankia$ are nitrogen fixers; they do not help in phosphorus absorption.
Hence $Glomus$ helps in the absorption of phosphorus.
The fungal symbiont absorbs phosphorus from the soil and passes it to the plant.
Plants with such associations also show resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in growth.
$Anabaena$, $Rhizobium$ and $Frankia$ are nitrogen fixers; they do not help in phosphorus absorption.
Hence $Glomus$ helps in the absorption of phosphorus.