A high-affinity iron transport system of Rhizobium meliloti may be required for efficient nitrogen fixation in planta |
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| Authors: | P R Gill Jr L L Barton M D Scoble J B Neilands |
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| Institution: | (1) Department of Biochemistry, University of California, 94720 Berkeley, CA, USA;(2) Department of Biology, University of New Mexico, 87131 Albuquerque, NM, USA;(3) Present address: Institut National de la Recherche Agronomique, 16 rue Claude Bernard, F-75231 Paris, Cedex 05, France |
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| Abstract: | We have analyzed the ability of single site insertion mutants of Rhizobium meliloti 1021 defective in various components of a high-affinity iron transport system to produce nodules, fix nitogen and promote plant growth. Our results indicate that a high-affinity iron transport system may significantly increase the ability of the differentiated form of the bacterium to fix nitrogen and induce an increase in plant growth.Abbreviations EDDA
ethylenediamine-N,N -bis(2-hydroxyphenylacetic acid)
- CAS
chrome azurol S |
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| Keywords: | iron transport nitrogen fixation nodulation Rhizobium symbiosis |
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