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Azospirillum-Gramineae Interaction: Effect of Indole-3-Acetic Acid

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Nitrogen Fixation

Part of the book series: Developments in Plant and Soil Sciences ((DPSS,volume 48))

Abstract

To evaluate the involvement of indole-3-acetic acid (IAA) in promoting plant response the effects of inoculation of wheat seeds with Azospirillum brasilense SpM7918, a very low IAA producer selected after Tn5 mutagenesis, have been compared with those caused by the inoculation with the wild type strain Sp6. In respect to Sp6, SpM7918 shows a reduced ability in promoting root system development as regards both the number and length of lateral roots and the distribution of root hairs. Similarly, inoculation with SpM7918 causes a decrease in mineral uptake, but less relevant than that observed for root system development.

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Author information

Authors and Affiliations

  1. Dip. di Genetica e di Biologia dei Microrganismi, Via Celoria 26, 20133, Milano, Italy

    P. Barbieri & E. Galli

  2. Dip. di Biotecnologie Agrarie, Via Gradenigo 6, 35131, Padova, Italy

    C. Baggio & M. P. Nuti

  3. Dip. di Biologia Animale e Genetica, Via Romana 19, 50145, Firenze, Italy

    M. Bazzicalupo

  4. Dip. di Fisiologia e Biochimica Generali, Via Celoria 26, 20133, Milano, Italy

    G. Zanetti

Authors
  1. P. Barbieri
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  2. C. Baggio
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  3. M. Bazzicalupo
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  4. E. Galli
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  5. G. Zanetti
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  6. M. P. Nuti
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Editor information

Editors and Affiliations

  1. University of Florence, Florence, Italy

    M. Polsinelli , R. Materassi  & M. Vincenzini ,  & 

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© 1991 Springer Science+Business Media Dordrecht

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Barbieri, P., Baggio, C., Bazzicalupo, M., Galli, E., Zanetti, G., Nuti, M.P. (1991). Azospirillum-Gramineae Interaction: Effect of Indole-3-Acetic Acid. In: Polsinelli, M., Materassi, R., Vincenzini, M. (eds) Nitrogen Fixation. Developments in Plant and Soil Sciences, vol 48. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3486-6_29

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  • DOI: https://doi.org/10.1007/978-94-011-3486-6_29

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-5541-3

  • Online ISBN: 978-94-011-3486-6

  • eBook Packages: Springer Book Archive

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