Arabidopsis late blight: infection of a nonhost plant by Albugo laibachii enables full colonization by Phytophthora infestans. (8th July 2016)

• Record Type: Journal Article
• Authors: Belhaj, Khaoula; Cano, Liliana M.; Prince, David C.; Kemen, Ariane; Yoshida, Kentaro; Dagdas, Yasin F.; Etherington, Graham J.; Schoonbeek, Henk‐jan; van Esse, H. Peter; Jones, Jonathan D.G.; Kamoun, Sophien; Schornack, Sebastian
• Is Part Of: Cellular microbiology. Volume 19:Number 1(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-07-08
• Subjects: Microbiology -- Periodicals; Cytology -- Periodicals; Host-parasite relationships -- Periodicals; Microbiology -- Periodicals; Cells -- Periodicals; Microbiologie -- Périodiques; Microbiologie; Relation hôte-parasite; Cytologie; Cellule; Réponse cellulaire; Ressource Internet (Descripteur de forme); Périodique électronique (Descripteur de forme); 579.05
• DOI: 10.1111/cmi.12628
• Languages: English
• ISSNs: 1462-5814

Abstract

Summary: The oomycete pathogen Phytophthora infestans causes potato late blight, and as a potato and tomato specialist pathogen, is seemingly poorly adapted to infect plants outside the Solanaceae. Here, we report the unexpected finding that P . infestans can infect Arabidopsis thaliana when another oomycete pathogen, Albugo laibachii, has colonized the host plant. The behaviour and speed of P . infestans infection in Arabidopsis pre‐infected with A . laibachii resemble P . infestans infection of susceptible potato plants. Transcriptional profiling of P . infestans genes during infection revealed a significant overlap in the sets of secreted‐protein genes that are induced in P . infestans upon colonization of potato and susceptible Arabidopsis, suggesting major similarities in P . infestans gene expression dynamics on the two plant species. Furthermore, we found haustoria of A . laibachii and P . infestans within the same Arabidopsis cells. This Arabidopsis— A . laibachii—P . infestans tripartite interaction opens up various possibilities to dissect the molecular mechanisms of P . infestans infection and the processes occurring in co‐infected Arabidopsis cells.