Resumo

MARTINEZ-PACHECO, Javier. R-PROTEINS AND PERCEPTION OF PATHOGENIC EFFECTORS IN THE FAMILY Solanaceae. Rev. Protección Veg. [online]. 2017, vol.32, n.1, pp. 1-9. ISSN 2224-4697.

The resistance (R) proteins of plants are involved in the specific recognition of pathogen effectors during the infection process and in the subsequent development of the defense response in the host. Most of R proteins have a nucleotide-binding site (NBS) and leucine-rich repeats (LRR). The family Solanaceae, with species like tobacco (Nicotiana tabacum L.), tomato (Solanum lycopersicum L.), or potato (Solanum tuberosum L.), is an abundant source of R proteins and R genes and is emerging as a system-model to study them. Different models have been developed to explain the occurrence of the mechanism of effector perception during infection based on R proteins in the host. . The increasing knowledge about the  mechanism  of  effector  perception  by  R  proteins  will  allow  development   of   new approaches to manipulate the plant innate immunity and improvement of resistance to pathogens. In this review, a general analysis is made of the structure, cellular localization and function of the different R proteins classes in the solanaceous plants. Furthermore, three different models of mechanisms of phytopathogenic effector perception are briefly summarized: the "guard" model, the "decoy" model, and the "integrated decoy/sensor" model

Palavras-chave : R proteins; solanaceous; effectors perception.

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