Bacteria inside root nodules need oxygen to survive. A pink or red color inside a nodule indicates the oxygen supply is robust and the bacteria are thriving. Disclaimer: AAAS and EurekAlert!

These beneficial bacteria are housed in root nodules formed on legume roots. However, the uncontrolled formation of numerous root nodules can impede root function. To prevent this, legumes need to ...

Root nodules are organs on plant roots that facilitate the symbiotic relationship. Rhizobia colonize these nodules and fix nitrogen by converting nitrogen from air into ammonia. Iron is needed for ...

Nodules on the roots of peas and beans help the plant to secure its own nitrogen, reducing the need for artificial fertiliser. Professor Giles Oldroyd's group is researching how this could be ...

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 ...

Tests of field pea varieties conducted this summer in plot trials suggest that some commercial varieties have more genetic ...