Journal of Phytopathology (2010) 158, 132-136

Hideki Takahashi, Shu Hase, Yoshinori Kanayama and Shigehito Takenaka (2010)
Identification of a protein that interacts with LeATL6 ubiquitin-protein ligase E3 upregulated in tomato treated with elicitin-like cell wall proteins of Pythium oligandrum
Journal of Phytopathology 158 (2), 132-136
Abstract: The expression of LeATL6, which encodes RING-H2 zinc finger ubiquitin-protein ligase E3, is highly induced in tomato roots treated with the elicitin-like cell wall protein fraction (CWP) from the non-pathogenic oomycete Pythium oligandrum, which enhances resistance to pathogens through a jasmonic acid (JA)-dependent signalling pathway. In this study, the role of LeATL6 for CWP-induced defence response was further analysed. To screen the putative target protein of LeATL6 for the CWP-induced defence mechanism in tomato, we used a yeast two-hybrid system to screen five clones encoding a protein that interacts with LeATL6. Four clones had a function associated with the ubiquitin-proteasome system. Another positive clone encoded a protein sharing homology with S-adenosylmethionine decarboxylase (SAMDC). In CWP-treated tomato roots, SAMDC activity was clearly suppressed. Thus, the interaction of SAMDC with LeATL6 and the decreased SAMDC activity may be associated with JA-dependent induced resistance in tomato treated with P. oligandrum.
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Link to article at publishers website
Database assignments for author(s): Hideki Takahashi

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
resistance/tolerance/defence of host
Research topic(s) for beneficials or antagonists:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Pythium oligandrum (antagonist)