RT Journal Article SR Electronic T1 The Role of Flavonoids in Root Nodule Development and Auxin Transport in Medicago truncatula JF The Plant Cell JO Plant Cell FD American Society of Plant Biologists SP 1539 OP 1540 DO 10.1105/tpc.106.044768 VO 18 IS 7 A1 Eckardt, Nancy A. YR 2006 UL http://www.plantcell.org/content/18/7/1539.abstract