Serveur d'exploration Phytophthora

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Structural analysis and activation by fungal infection of a gene encoding a pathogenesis-related protein in potato.

Identifieur interne : 002D14 ( Main/Exploration ); précédent : 002D13; suivant : 002D15

Structural analysis and activation by fungal infection of a gene encoding a pathogenesis-related protein in potato.

Auteurs : J L Taylor [Allemagne] ; K H Fritzemeier ; I. H User ; E. Kombrink ; F. Rohwer ; M. Schröder ; G. Strittmatter ; K. Hahlbrock

Source :

RBID : pubmed:2132026

Descripteurs français

English descriptors

Abstract

The structure, genomic organization, and temporal pattern of activation of a gene encoding a pathogenesis-related protein (PR1) in potato (Solanum tuberosum) have been analyzed. The gene is rapidly activated in leaves from the potato cultivar Datura, containing the resistance gene R1, in both compatible and incompatible interactions with appropriate races of the late-blight fungus Phytophthora infestans. Activation is also observed in leaves treated with fungal elicitor. The gene occurs in multiple, very similar copies and encodes a polypeptide (Mr = 25,054; pI = 5.5) that is classified as a PR protein by several criteria. Small fragments with great sequence similarity to portions of the two exons were found closely linked to the expressed gene, which altogether represents a simple case of genome organization in potato. The coding sequence of the prp1 gene and the deduced amino acid sequence are strikingly similar to the corresponding sequences of a 26-kDa heat shock protein from soybean.

PubMed: 2132026


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Le document en format XML

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<term>DNA (MeSH)</term>
<term>Gene Expression Regulation (MeSH)</term>
<term>Heat-Shock Proteins (genetics)</term>
<term>Kinetics (MeSH)</term>
<term>Molecular Sequence Data (MeSH)</term>
<term>Phytophthora (physiology)</term>
<term>Plant Diseases (MeSH)</term>
<term>Plant Proteins (genetics)</term>
<term>Protein Biosynthesis (MeSH)</term>
<term>RNA, Messenger (metabolism)</term>
<term>Restriction Mapping (MeSH)</term>
<term>Sequence Alignment (MeSH)</term>
<term>Solanum tuberosum (genetics)</term>
<term>Solanum tuberosum (microbiology)</term>
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<term>ADN (MeSH)</term>
<term>ARN messager (métabolisme)</term>
<term>Alignement de séquences (MeSH)</term>
<term>Biosynthèse des protéines (MeSH)</term>
<term>Cartographie de restriction (MeSH)</term>
<term>Cinétique (MeSH)</term>
<term>Données de séquences moléculaires (MeSH)</term>
<term>Maladies des plantes (MeSH)</term>
<term>Phytophthora (physiologie)</term>
<term>Protéines du choc thermique (génétique)</term>
<term>Protéines végétales (génétique)</term>
<term>Régulation de l'expression des gènes (MeSH)</term>
<term>Solanum tuberosum (génétique)</term>
<term>Solanum tuberosum (microbiologie)</term>
<term>Séquence d'acides aminés (MeSH)</term>
<term>Séquence nucléotidique (MeSH)</term>
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<term>Heat-Shock Proteins</term>
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<term>Protéines du choc thermique</term>
<term>Protéines végétales</term>
<term>Solanum tuberosum</term>
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<term>Solanum tuberosum</term>
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<term>Solanum tuberosum</term>
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<term>ARN messager</term>
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<term>Phytophthora</term>
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<term>Phytophthora</term>
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<term>Amino Acid Sequence</term>
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<term>Kinetics</term>
<term>Molecular Sequence Data</term>
<term>Plant Diseases</term>
<term>Protein Biosynthesis</term>
<term>Restriction Mapping</term>
<term>Sequence Alignment</term>
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<term>ADN</term>
<term>Alignement de séquences</term>
<term>Biosynthèse des protéines</term>
<term>Cartographie de restriction</term>
<term>Cinétique</term>
<term>Données de séquences moléculaires</term>
<term>Maladies des plantes</term>
<term>Régulation de l'expression des gènes</term>
<term>Séquence d'acides aminés</term>
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<div type="abstract" xml:lang="en">The structure, genomic organization, and temporal pattern of activation of a gene encoding a pathogenesis-related protein (PR1) in potato (Solanum tuberosum) have been analyzed. The gene is rapidly activated in leaves from the potato cultivar Datura, containing the resistance gene R1, in both compatible and incompatible interactions with appropriate races of the late-blight fungus Phytophthora infestans. Activation is also observed in leaves treated with fungal elicitor. The gene occurs in multiple, very similar copies and encodes a polypeptide (Mr = 25,054; pI = 5.5) that is classified as a PR protein by several criteria. Small fragments with great sequence similarity to portions of the two exons were found closely linked to the expressed gene, which altogether represents a simple case of genome organization in potato. The coding sequence of the prp1 gene and the deduced amino acid sequence are strikingly similar to the corresponding sequences of a 26-kDa heat shock protein from soybean.</div>
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<AbstractText>The structure, genomic organization, and temporal pattern of activation of a gene encoding a pathogenesis-related protein (PR1) in potato (Solanum tuberosum) have been analyzed. The gene is rapidly activated in leaves from the potato cultivar Datura, containing the resistance gene R1, in both compatible and incompatible interactions with appropriate races of the late-blight fungus Phytophthora infestans. Activation is also observed in leaves treated with fungal elicitor. The gene occurs in multiple, very similar copies and encodes a polypeptide (Mr = 25,054; pI = 5.5) that is classified as a PR protein by several criteria. Small fragments with great sequence similarity to portions of the two exons were found closely linked to the expressed gene, which altogether represents a simple case of genome organization in potato. The coding sequence of the prp1 gene and the deduced amino acid sequence are strikingly similar to the corresponding sequences of a 26-kDa heat shock protein from soybean.</AbstractText>
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