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A high-affinity iron transport system of Rhizobium meliloti may be required for efficient nitrogen fixation in planta

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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.

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Abbreviations

EDDA:

ethylenediamine-N,N′-bis(2-hydroxyphenylacetic acid)

CAS:

chrome azurol S

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Gill, P.R., Barton, L.L., Scoble, M.D. et al. A high-affinity iron transport system of Rhizobium meliloti may be required for efficient nitrogen fixation in planta . Plant Soil 130, 211–217 (1991). https://doi.org/10.1007/BF00011875

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