title: Legume haemoglobins: symbiotic nitrogen fixation needs bloody nodules.
abstract: How do plants create an environment in which symbiotic bacteria can reduce enough N2 to provide the plant with sufficient ammonium for growth? Gene silencing has now been used to show that legume haemoglobins are crucial.
authors.affiliation: Department of Molecular Microbiology, John Innes Centre, Norwich NR4 7UH, UK. allan.downie@bbsrc.ac.uk
authors.forename: J Allan
authors.initials: JA
authors.lastname: Downie
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D007887:Fabaceae / Q000235:genetics / Q000382:microbiology / Q000502:physiology*; D007874:Leghemoglobin / Q000235:genetics / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism; D009591:Nitrogenase / Q000378:metabolism; D010100:Oxygen / Q000378:metabolism; D018517:Plant Roots / Q000166:cytology / Q000378:metabolism* / Q000382:microbiology; D000644:Quaternary Ammonium Compounds / Q000378:metabolism; D034622:RNA Interference; D013559:Symbiosis
chemical_list: D007874:Leghemoglobin; D000644:Quaternary Ammonium Compounds; D009591:Nitrogenase; D009584:Nitrogen; D010100:Oxygen