A Prototype Model for Indole-3-Acetic Acid (IAA) Production by Azospirillum brasilense SP245

Given the vital role of nitrogen for plant growth on the one hand, versus the severe impact on the environment of extensive use of inorganic nitrogen fertilizers on the other hand, the need for alternative fertilization becomes apparent. In this respect, the nitrogen fixing bacteria of the genus Azo...

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Bibliographic Details
Published inIFAC Proceedings Volumes Vol. 37; no. 9; pp. 493 - 498
Main Authors Smets, Ilse Y., Bernaerts, Kristel, Cappuyns, Astrid, Ona, Ositadinma, Vanderleyden, Jos, Prinsen, Eis, Van Impe, Jan F.
Format Journal Article
LanguageEnglish
Published 01.07.2004
Subjects
Azospirillum bmsilense
bioreactor model identification
IAA production
IAA production
bioreactor model identification
Azospirillum bmsilense
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Summary:Given the vital role of nitrogen for plant growth on the one hand, versus the severe impact on the environment of extensive use of inorganic nitrogen fertilizers on the other hand, the need for alternative fertilization becomes apparent. In this respect, the nitrogen fixing bacteria of the genus Azospirillum offer interesting perspectives since inoculation of the plant roots with these bacteria positively affects plant growth. Studies have shown that the growth promoting power of the bacteria can probably be attributed more to the production of the auxin indole-3-acetic acid (IAA) than to the nitrogen fixation qualities of the genus. The aim of this study is therefore to characterize and quantify the IAA production of Azospirillum brasilense Sp245 on a macroscopic level as to exploit the resulting model in optimal experiment design studies. The data obtained from these optimal experiments should be rich enough to aid in further unravelling the studied IAA production mechanism.
ISSN:1474-6670
DOI:10.1016/S1474-6670(17)31857-8