摘要:
The present invention provides an isolated protein obtainable from a plant source which has anti-Phytophthora activity and a molecular weight of about 60±5 kDa as judged by SDS PAGE-electrophoresis, an isolated DNA sequence comprising an open reading frame capable of encoding a protein according to the invention, preferably characterized in that it comprises an open reading frame which is capable of encoding a protein as represented by amino acids 1 to 540 of SEQ ID NO: 6, or the precursor of said protein, and DNA capable of hybridising therewith under stringent conditions. The invention further comprises plants incorporating chimeric DNA capable of encoding a protein according to the invention, and wherein the protein is expressed. Also methods are provided for combatting fungi, especially Phytophthora infestans, using a protein or a host cell capable of producing the protein.
摘要翻译:本发明提供从通过SDS PAGE-电泳判断的具有抗疫病活性和约60±5kDa分子量的植物来源获得的分离的蛋白质,包含能够编码蛋白质的开放阅读框的分离的DNA序列 根据本发明,其特征在于其包含能够编码由SEQ ID NO:6的氨基酸1至540表示的蛋白质或所述蛋白质的前体以及能够与其杂交的DNA的开放阅读框架 在严格条件下。 本发明还包括含有能够编码本发明的蛋白质的嵌合DNA的植物,并且其中所述蛋白质被表达。 还提供了使用能够产生蛋白质的蛋白质或宿主细胞来对抗真菌,特别是致病疫霉的方法。
摘要:
The present invention provides an isolated protein obtainable from a plant source which has antifungal activity, specifically anti-Phytophthora activity and/or anti-Pythium activity and a molecular weight of about 55-65 kDa as judged by SDS PAGE-electrophoresis, an isolated DNA sequence comprising an open reading frame capable of encoding a protein according to the invention, preferably characterized in that it comprises an open reading frame which is capable of encoding a protein depicted in SEQ ID NO. 16, SEQ ID NO. 57, SEQ ID NO. 70, SEQ ID NO. 72 or SEQ ID NO. 74 or muteins thereof, and DNA capable of hybridizing therewith under stringent conditions. The invention further comprises plants incorporating chimeric DNA capable of encoding a protein according to the invention, and wherein the protein is expressed. Also shown is the carbohydrate and preferably hexose oxidating activity of said protein. Also methods are provided for combating fungi, especially Phytophthora and Pythium species, using a protein or a host cell capable of producing the protein.
摘要翻译:本发明提供从植物来源获得的分离的蛋白质,其具有抗真菌活性,特别是抗疫苗活性和/或抗腐霉菌活性,并且通过SDS PAGE-电泳判断分子量为约55-65kDa,分离的DNA 其包含能够编码本发明的蛋白质的开放阅读框,其特征在于,其包含能够编码SEQ ID NO:1所示蛋白质的开放阅读框。 16,SEQ ID NO: 57,SEQ ID NO: 70,SEQ ID NO: 72或SEQ ID NO。 74或突变蛋白,以及能够在严格条件下与其杂交的DNA。 本发明还包括含有能够编码本发明的蛋白质的嵌合DNA的植物,并且其中所述蛋白质被表达。 还显示了所述蛋白质的碳水化合物和优选己糖氧化活性。 还提供了使用能够产生蛋白质的蛋白质或宿主细胞来对抗真菌,特别是疫霉属(Phytophthora)和腐霉属(Pythium)物种的方法。
摘要:
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.
摘要:
Chimeric genes encoding antifungal chitin binding proteins (antifungal CBPs) with very low chitinase activity (10% or less than that of the class-I chitinases from tobacco). Also substantially pure DNA sequences encoding antifungal CBP are provided for the obtention of transgenic plants producing antifungal CBP. Plants expressing an antifungal CBP gene, optionally in combination with a plant expressible glucanase gene, show reduced susceptibility to fungi.
摘要:
There is provided a method for inhibiting growth and/or germination of a fungus, by contacting the fungus, or causing the fungus to be contacted with a composition including an effective amount of a pathogenesis-related protein occurring naturally in a plant. The protein has endochitinase activity, antifungal activity and a molecular weight of about 40 to 43 kDa as judged by Sodium Dodecyl Sulphate Polyacrylamide electrophoresis. There is also provided a composition for inhibiting growth and/or germination of a fungus. The composition includes a pathogenesis-related protein occurring naturally in a plant. The protein has endochitinase activity, antifungal activity and a molecular weight of about 40 to 43 kDa as judged by Sodium Dodecyl Sulphate Polyacrylamide electrophoresis. The composition also includes .beta.-1,3-glucanase in an amount sufficient to enhance the effectiveness of the composition in inhibiting the growth or germination of the fungus.
摘要:
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.