西亚试剂：Interfamily transfer of a plant pattern-recognition recepto

Interfamily transfer of a plant pattern-recognition receptor confers broad-spectrum bacterial resistance
Séverine Lacombe1,5,6, Alejandra Rougon-Cardoso1,5,6, Emma Sherwood1,5,6, Nemo Peeters2, Douglas Dahlbeck3, H Peter van Esse4, Matthew Smoker1, Ghanasyam Rallapalli1, Bart P H J Thomma4, Brian Staskawicz3, Jonathan D G Jones1 & Cyril Zipfel1

Plant diseases cause massive losses in agriculture. Increasing the natural defenses of plants may reduce the impact of phytopathogens on agricultural productivity. Pattern-recognition receptors (PRRs) detect microbes by recognizing conserved pathogen-associated molecular patterns (PAMPs)1, 2, 3. Although the overall importance of PAMP-triggered immunity for plant defense is established2, 3, it has not been used to confer disease resistance in crops. We report that activity of a PRR is retained after its transfer between two plant families. Expression of EFR (ref. 4), a PRR from the cruciferous plant Arabidopsis thaliana, confers responsiveness to bacterial elongation factor Tu in the solanaceous plants Nicotiana benthamiana and tomato (Solanum lycopersicum), making them more resistant to a range of phytopathogenic bacteria from different genera. Our results in controlled laboratory conditions suggest that heterologous expression of PAMP recognition systems could be used to engineer broad-spectrum disease resistance to important bacterial pathogens, potentially enabling more durable and sustainable resistance in the field.

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