... families One feature that makes legumes attractive as crops is theirability to fix atmospheric nitrogen by means of symbioticbacteria - rhizobia and relatives - that live in nodules in the legume’s ... infrastructure. Since the beginning of thiscentury, however, mineral and energy commodity priceshave exploded. Today, everything in this field is at apremium, from geology graduates to tyres for mining ... This indicatesthat NSP2 transduces calcium signals in plants. The role of flavonoids in nodule initiation was explored byGary Stacey (University of Missouri, Columbia, USA) andUlrike Mathesius...