Legumes (family Fabales) develop root nodules that harbour Rhizobium bacteria (rhizobia). Endosymbiotic bacteria (bacteroids) convert nitrogen to ammonia (biological nitrogen fixation). Legume crops restore fertility to agricultural soils by capturing nitrogen from the atmosphere.
Mon Apr 24 4:00am. Meet the Press msnbc. This Sunday-morning public-affairs institution is network TV's oldest program, but it's certainly no dinosaur as it continues to be a prime forum for newsmakers (domestic and foreign) wanting to make announcements or test political waters.
Alex Wagner is the host of msnbcâs âNOW with Alex Wagnerâ (weekdays at 4 p.m. ET). Wagner had been an msnbc analyst and frequent msnbc guest since 2010. Most recently, Wagner was a reporter with Huffington Post, where she covered innovation in the American economy, investigating the intersection of business, politics, and new technology.