01958naa a2200361 a 450000100080000000500110000800800410001910000200006024501160008026000090019652008120020565000360101765000310105365000140108465000140109865000140111265300310112665300140115765300080117165300170117965300160119665300080121265300360122065300290125670000200128570000230130570000230132870000240135170000220137570000160139770000250141377301580143816209791999-03-15       1997    bl uuuu     u00u1 u    #d1 aBALDANI, J. Ivo  aNitrogen - fixing endophytesbRecent advances in the association with graminaceous plants grown in the tropics.  c1997  aThe concept of endophytes to nitrogen-fixing bacteria associated to graminaceous plants is quite recent and not very well understood. Most of what is known refers to the in vitro studies and have concentrated on the diazotrophs Acetobacter diazotrophicus, Herbaspirillum seropedicae and H. rubrisubalbicans which are found in association with sugar cane plants. To fully understand this interaction, it is necessary to obtain a complete picture on the ecological, physiological and molecular aspects involved in the plant-bacteria association. This presentation will focus on the interaction of these diazotrophic endophytes with graminaceous plants and discuss aspects that might contribute to a better understanding of the role that nitrogen-fixing endophytes play onthe association with tropical grasses.  aHerbaspirillum rubrisubalbicans  aHerbaspirillum seropedicae  aBactéria  aGramínea  aGramineae  aAcetobacter diazotrophicus  aBacterias  aBNF  aDiazotrofico  aDiazotrophs  aFBN  aFixacao biologica de nitrogenio  aNitrogen fixing bacteria1 aOLIVARES, F. L.1 aOLIVEIRA, A. L. M.1 aREIS JUNIOR, F. B.1 aBALDANI, Vera L. D.1 aREIS, Veronica M.1 aHEMERLY, A.1 aDOBEREINER, Johanna.  tIn: INTERNATIONAL CONGRESS ON NITROGEN FIXATION, 11., jul. 1997, Paris. Abstracts... Paris: Institut Pasteur; INRA; CNRS; CEA; ORSTOM; CIRAD, 1997. p.14.