US 5,670,706 A · Fungal resistant plants, process for obtaining fungal resistant plants and recombinant polynucleotides for use therein

Fungal resistant plants, process for obtaining fungal resistant plants and recombinant polynucleotides for use therein

AssigneesMogen International N.V., Rijksuniversiteit te Leiden

InventorsBernardus J. C. Cornelissen, Leo Sjoerd Melchers, Elisabeth J. S. Meulenhoff, Jeroen S. C. van Roekel, Marianne Beatrix Sela-Buurlage, Alexandra Aleida Vloemans, Charles Peter Woloshuk, John Ferdinand Bol, Hubertus J. M. Linthorst

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Abstract

Plants are provided with improved resistance against pathogenic fungi. They are genetically transformed with one or more polynucleotides which essentially comprise one or more genes encoding plant chitinases and .beta.-1,3-glucanases. Preferred are the intracellular forms of the said hydrolytic enzymes, especially preferred are those forms which are targeted to the apoplastic space of the plant by virtue of the modification of the genes encoding the said enzymes. Particularly preferred are plants exhibiting a relative overexpression of at least one gene encoding a chitinase and one gene encoding a .beta.-1,3-glucanase.

Claims30

Dependent claims

A transgenic plant that has been transformed with and expresses an intracellular plant chitinase gene and a plant .beta.-1,3-glucanase gene in at least one of the plant tissues.

Dependencies are inferred from the claim text.