Search Results - "Melchers, Leo S."

Root lectin as a determinant of host-plant specificity in the Rhizobium -legume symbiosis by Díaz, Clara L, Melchers, Leo S, Hooykaas, Paul J. J, Lugtenberg, Ben J. J, Kijne, Jan W

“…It has been suggested that root lectin recognized by bacterial receptor molecules is an important determinant of host specificity. Lectins are…”
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Isolation and characterisation of a class of carbohydrate oxidases from higher plants, with a role in active defence by Custers, J.H.H.V, Harrison, S.J, Sela-Buuriage, M.B, Deventer, E. van, Lageweg, W, Howe, P.W, Meijs, P.J. van der, Ponstein, A.S, Simons, B.H, Melchers, L.S

“…In a search for novel plant-derived antimicrobial proteins, we screened extracts from salicylic acid (SA)-treated lettuce and sunflower leaves. These extracts…”
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Novel genes for disease-resistance breeding by Melchers, Leo S, Stuiver, Maarten H

“…Plant disease control is entering an exciting period during which transgenic plants showing improved resistance to pathogenic viruses, bacteria, fungi and…”
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A new class of tobacco chitinases homologous to bacterial exo-chitinases displays antifungal activity by MELCHERS, L. S, APOTHEKER-DE GROOT, M, VAN DER KNAAP, J. A, PONSTEIN, A. S, SELA-BUURLAGE, M. B, BOL, J. F, CORNELISSEN, B. J. C, VAN DEN ELZEN, P. L. M, LINTHORST, H. J. M

“…A novel chitinase gene of tobacco was isolated and characterized by DNA sequence analysis of a genomic clone and a cDNA clone. Comparative sequence analysis of…”
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Factors influencing transformation frequency of tomato (Lycopersicon esculentum) by VAN ROEKEL, J. S. C, DAMM, B, MELCHERS, L. S, HOEKEMA, A

“…We developed an efficient procedure for transformation and regeneration of L. esculentum cv. Moneymaker from cotyledon explants. The effect of two parameters…”
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Virus and Fungal Resistance: From Laboratory to Field by Peter J. M. Van Den Elzen, Jongedijk, Erik, Melchers, Leo S., Ben J. C. Cornelissen

“…Virus and fungal resistance traits are important targets in the genetic engineering of agricultural and horticultural crops. We have engineered resistance…”
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A new class of tobacco chitinases homologous to bacterial exo‐chitinases displays antifungal activity by Melchers, Leo S., Groot, Marion Apotheker‐de, Knaap, Jan A., Ponstein, Anne S., Sela‐Buurlage, Marianne B., Bol, John F., Cornelissen, Ben J.C., Elzen, Peter J.M., Linthorst, Huub J.M.

“…Summary A novel chitinase gene of tobacco was isolated and characterized by DNA sequence analysis of a genomic clone and a cDNA clone. Comparative sequence…”
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New Agrobacterium helper plasmids for gene transfer to plants by HOOD, E.E, GELVIN, S.B, MELCHERS, L.S, HOEKEMA, A

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Only specific tobacco (Nicotiana tabacum) chitinases and beta-1,3-glucanases exhibit antifungal activity by Sela-Buurlage, M.B, Ponstein, A.S, Bres-Vloemans, S.A, Melchers, L.S, Elzen, P.J.M. van den, Cornelissen, B.J.C

“…Different isoforms of chitinases and beta-1,3-glucanases of tobacco (Nicotiana tabacum cv Samsun NN) were tested for their antifungal activities. The class I,…”
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Synergistic activity of chitinases and beta-1,3-glucanases enhances fungal resistance in transgenic tomato plants by Jongedijk, E. (MOGEN International NV, Leiden (Netherlands)), Tigelaar, H, Roekel, J.S.C. van, Bres-Vloemans, S.A, Dekker, I, Elzen, P.J.M. van den, Cornelissen, B.J.C, Melchers, L.S

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A novel pathogen- and wound-inducible tobacco (Nicotiana tabacum) protein with antifungal activity by PONSTEIN, A. S, BRES-VLOEMANS, S. A, SELA-BUURLAGE, M. B, VAN DEN ELZEN, P. J. M, MELCHERS, L. S, CORNELISSEN, B. J. C

“…A novel pathogen- and wound-inducible antifungal protein of 20 kD was purified from tobacco (Nicotiana tabacum) Samsun NN leaves inoculated with tobacco mosaic…”
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Strategies for control of fungal diseases with transgenic plants by Cornelissen, B.J.C, Melchers, L.S

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Perspectives in Experimental Botany. Sequence analysis of the vir-region from Agrobacterium tumefaciens octopine Ti plasmid pTi15955 by Schrammeijer, Barbara, Beijersbergen, Alice, Idler, Ken B, Melchers, Leo S, Thompson, David V, Paul J.J. Hooykaas

“…The nucleotide sequence of 42 775 bp of the vir-region from the Agrobacterium tumefaciens octopine Ti plasmid pTi15955 is reported here. Although the…”
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Sequence analysis of the vir‐region from Agrobacterium tumefaciens octopine Ti plasmid pTi15955 by Schrammeijer, Barbara, Beijersbergen, Alice, Idler, Ken B., Melchers, Leo S., Thompson, David V., Hooykaas, Paul J.J.

“…The nucleotide sequence of 42 775 bp of the vir‐region from the Agrobacterium tumefaciens octopine Ti plasmid pTi15955 is reported here. Although the…”
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Extracellular targeting of the vacuolar tobacco proteins AP24, chitinase and beta-1,3-glucanase in transgenic plants by Melchers, L.S. (MOGEN International NV, Leiden (Netherlands)), Sela-Buurlage, M.B, Vloemans, S.A, Woloshuk, C.P, Roekel, J.S.C. van, Pen, J, Elzen, P.J.M. van den, Cornelissen, B.J.C

“…The Nicotiana tabacum ap24 gene encoding a protein with antifungal activity toward Phytophthora infestans has been characterized. Analysis of cDNA clones…”
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Analysis of gene families encoding acidic and basic beta-1,3-glucanases of tobacco by Linthorst, H.J.M. (Leiden University, Leiden, The Netherlands), Melchers, L.S, Mayer, A, Roekel, J.S.C. van, Cornelissen, B.J.C, Bol, J.F

“…Healthy tobacco plants accumulate β-1,3-glucanases (glucan endo-1,3-β-glucosidase; EC 3.2.1.39) in their roots and in specific parts of the flowers. After…”
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Production of the AVR9 elicitor from the fungal pathogen Cladosporium fulvum in transgenic tobacco and tomato plants by Honee, G. (Landbouwuniversiteit Wageningen (Netherlands). Vakgroep Fytopathologie), Melchers, L.S, Vleeshouwers, V.G.A.A, Roekel, J.S.C. van, Wit, P.J.G.M. de

“…Three constructs were used to study the expression of the avirulence gene Avr9 from the fungal tomato pathogen Cladosporium fulvum in plants. They include…”
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Analysis of the complete nucleotide sequence of the Agrobacterium tumefaciens virB operon by THOMPSON, D. V, MELCHERS, L. S, IDLER, K. B, SCHILPEROORT, R. A, HOOYKAAS, P. J. J

“…The complete nucleotide sequence of the virB locus, from the octopine Ti plasmid of Agrobacterium tumefaciens strain 15955, has been determined. In the large…”
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Octopine and nopaline strains of Agrobacterium tumefaciens differ in virulence; molecular characterization of the virF locus by Melchers, L.S. (Leiden Univ. (Netherlands). Vakgroep Moleculaire Biologie van Planten), Maroney, M.J, Dulk-Ras, A. den, Thompson, D.V, Vuuren, H.A.J. van, Schilperoort, R.A, Hooykaas, P.J.J

“…Octopine and nopaline strains of Agrobacterium tumefaciens were found to differ in virulence on Nicotiana glauca. This difference is due to the absence of a…”
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The production and uses of genetically transformed plants - Virus and fungal resistance: from laboratory to field by Cornelissen, J.c., Van Den Elzen, Peter J. M., Jongedijk, Erik, Melchers, Leo S., Cornelissen, Ben J. C.

“…Virus and fungal resistance traits are important targets in the genetic engineering of agricultural and horticultural crops. We have engineered resistance…”
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