A DNA transformation-competent Arabidopsis genomic library in Agrobacterium von Lazo, G.R. (University of California, Santa Cruz, CA), Stein, P.A, Ludwig, R.A

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Arabidopsis chloroplasts dissimilate L-arginine and L-citrulline for use as N source von Ludwig, R.A

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Azorhizobium caulinodans respires with at least four terminal oxidases von KITTS, C. L, LUDWIG, R. A

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Azorhizobium caulinodans pyruvate dehydrogenase activity is dispensable for aerobic but required for microaerobic growth von Pauling, David C, Lapointe, Jerome P, Paris, Carolyn M, Ludwig, Robert A

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Interactive regulation of Azorhizobium nifA transcription via overlapping promoters von Loroch, A.I. (University of California, Santa Cruz, CA.), Nguyen, B.G, Ludwig, R.A

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Elucidation of the complete Azorhizobium nicotinate catabolism pathway von Kitts, C.L. (University of California, Santa Cruz, CA), Lapointe, J.P, Lam, T. van, Ludwig, R.A

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Microaerophilic bacteria transduce energy via oxidative metabolic gearing von Ludwig, Robert A.

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Cloning of Azorhizobium caulinodans nicotinate catabolism genes and characterization of their importance in N2 fixation von Buckmiller, L.M. (University of California, Santa Cruz, CA), Lapointe, J.P, Ludwig, R.A

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Rhizobium sp. strain ORS571 ammonium assimilation and nitrogen fixation von DONALD, R. G. K, LUDWIG, R. A

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Complete sequence of the yeast artificial chromosome cloning vector pYAC4 von Kuhn, Robert M., Ludwig, Robert A.

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Rhizobium sp. strain ORS571 grows synergistically on N2 and nicotinate as N sources von Ludwig, R.A

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Identification of cyclic intermediates in Azorhizobium caulinodans nicotinate catabolism von Kitts, C.L, Schaechter, L.E, Rabin, R.S, Ludwig, R.A

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Characterization of the Azorhizobium sesbaniae ORS571 genomic locus encoding NADPH-glutamate synthase von DONALD, R. G. K, LAPOINTE, J, LUDWIG, R. A

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Extension of Bacteriophage λ Host Range: Selection, Cloning, and Characterization of a Constitutive λ Receptor Gene von de Vries, Gert E., Raymond, Chris K., Ludwig, Robert A.

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Vector insertion mutagenesis of Rhizobium sp. strain ORS571: direct cloning of mutagenized DNA sequences von Donald, R.G.K, Raymond, C.K, Ludwig, R.A

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Azorhizobium caulinodans uses both cytochrome bd (quinol) and cytochrome cbb3 (cytochrome c) terminal oxidases for symbiotic N2 fixation von Kaminski, P A, Kitts, C L, Zimmerman, Z, Ludwig, R A

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Gene tandem-mediated selection of coliphage lambda-receptive Agrobacterium, Pseudomonas, and Rhizobium strains von Ludwig, R.A

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Linguistic Ecology and Language Contact von Ludwig, Ralph, Pagel, Steve, Muhlhausler, Peter

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Control of ammonium assimilation in Rhizobium 32H1 von Ludwig, R A

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Characterization of three genomic loci encoding Rhizobium sp. strain ORS571 N2 fixation genes von DONALD, R. G. K, NEES, D. W, RAYMOND, C. K, LOROCH, A. I, LUDWIG, R. A

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