We find that Rhizobium forms nodules on the roots of leguminous plants. Also Frankia another microbe
Channel: Doubtnut
Date: 19/01/2020

We find that Rhizobium forms nodules on the roots of leguminous plants. Also Frankia another microbe forms nitrogen fixing nodules on the roots of non-leguminous plant Alnus. (a) Can we artificially induce the property of nitrogen-fixation in a plant, leguminous or non-leguminous ? (b) What kind of relationship is observed between mycorrhiza and pine trees ? (c) Is it necessary for a microbe to be in close association with a plant to provide mineral nutrition ? Explain with the help of one example.