We know that low GA is good for the initial rhizobium infection of the roots, but then later you need ... that GA accumulation in the root is unique to nodule development and likely therefore ...

IN addition to the red pigment, hæmoglobin,· we have always found in leguminous root nodules a brown pigment. This is methæmoglobin with trivalent iron1. The simplest way of demonstrating its ...