Stable molecular transformation of Toxoplasma gondii: a selectable dihydrofolate reductase-thymidylate synthase marker based on drug-resistance mutations in malaria von Robert G. K. Donald, Roos, David S.

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Organic C and N storage, and organic C fractions, in adjacent cultivated and forested soils of eastern Canada von Carter, M.R, Gregorich, E.G, Angers, D.A, Donald, R.G, Bolinder, M.A

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Impact of tillage practices on organic carbon and nitrogen storage in cool, humid soils of eastern Canada von Angers, D.A., Bolinder, M.A., Carter, M.R., Gregorich, E.G., Drury, C.F., Liang, B.C., Voroney, R.P., Simard, R.R., Donald, R.G., Beyaert, R.P., Martel, J.

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Insertional mutagenesis and marker rescue in a protozoan parasite: cloning of the uracil phosphoribosyltransferase locus from Toxoplasma gondii von Donald, R G, Roos, D S

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Mutation of either G box or I box sequences profoundly affects expression from the Arabidopsis rbcS‐1A promoter von Donald, R.G., Cashmore, A.R.

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Pharmacokinetics of 2,3,7,8-tetrachlorodibenzo-p-dioxin in Seveso adults and veterans of operation Ranch Hand von MICHALEK, JOEL E, PIRKLE, JAMES L, NEEDHAM, LARRY L, PATTERSON JR, DONALD G, CAUDILL, SAMUEL P, TRIPATHI, RAM C, MOCARELLI, PAOLO

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Nuclear-Encoded Proteins Target to the Plastid in Toxoplasma gondii and Plasmodium falciparum von Waller, Ross F., Keeling, Patrick J., Robert G. K. Donald, Striepen, Boris, Handman, Emanuela, Lang-Unnasch, Naomi, Cowman, Alan F., Besra, Gurdyal S., Roos, David S., McFadden, Geoffrey I.

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New sign to confirm the presence of groin hernia in infants and small children von Donald, G R

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Homologous recombination and gene replacement at the dihydrofolate reductase-thymidylate synthase locus in Toxoplasma gondii von Donald, Robert G.K., Roos, David S.

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The effect of soil aggregate size on early shoot and root growth of maize (Zea mays L.) von DONALD, R. G., KAY, B. D., MILLER, M. H.

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Serological Analysis of Barley Stripe Mosaic Virus-Encoded Proteins in Infected Barley von Donald, R.G.K., Zhou, H., Jackson, A.O.

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

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Insertional tagging, cloning, and expression of the Toxoplasma gondii hypoxanthine-xanthine-guanine phosphoribosyltransferase gene. Use as a selectable marker for stable transforma... von Donald, R G, Carter, D, Ullman, B, Roos, D S

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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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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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Identification and characterization of differentiation mutants in the protozoan parasite Toxoplasma gondii von Matrajt, Mariana, Donald, Robert G. K., Singh, Upinder, Roos, David S.

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Missouri farm prices for 25 years / D.R. Cowan and F.L. Thomsen : v.221(1935) von Cowan, Donald R. G. 1897

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Missouri farm prices and purchasing power / [Donald R.G. Cowan : v.84(1926) von Cowan, Donald R. G. 1897

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The barley stripe mosaic virus 58-kilodalton beta(b) protein is a multifunctional RNA binding protein von Donald, R G, Lawrence, D M, Jackson, A O

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