caa a22 4500 445390298 CHVBK 20180317143044.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10327-010-0283-9 doi (NATIONALLICENCE)springer-10.1007/s10327-010-0283-9 Extracts from Ralstonia solanacearum induce effective resistance to the pathogen in both Arabidopsis and solanaceous plants [Elektronische Daten] [Reona Takabatake, Takafumi Mukaihara] Plants defend themselves against microbial invasions by detecting conserved molecules, collectively called pathogen-associated molecular patterns (PAMPs). PAMPs-triggered basal resistance is the first inducible layer of plant defense. Here we found that Ralstonia solanacearum strain RS1002 can efficiently grow and cause disease in ecotype Columbia-0 of the model plant Arabidopsis thaliana in a manner dependent on the Hrp type III secretion system (T3SS). The extent of disease symptoms caused by R. solanacearum was reduced in plants pretreated with ΔhrpY mutant deficient in the functional Hrp T3SS. Pretreatment with a boiled extract (BE) from R. solanacearum had a similar inhibitory effect on disease development or bacterial multiplication in both Arabidopsis and several solanaceous plants. Simultaneous inoculations with BE and R. solanacearum did not induce BE-mediated resistance, nor did a BE treatment with proteinases. These results indicate that host plants recognize an unknown proteinaceous PAMP in the BE to induce disease resistance and that the Hrp T3SS of R. solanacearum can suppress it. From an analysis using Arabidopsis mutants lacking PAMP receptors, the elongation factor Tu of R. solanacearum was shown to partially contribute to BE-mediated basal resistance in Arabidopsis plants. The Phytopathological Society of Japan and Springer, 2010 Bacterial extract nationallicence Basal resistance nationallicence hrpY mutant nationallicence PAMP nationallicence Ralstonia solanacearum nationallicence Takabatake Reona Research Institute for Biological Sciences (RIBS), 7549-1 Yoshikawa, Kibichuo-cho, 716-1241, Okayama, Japan aut Mukaihara Takafumi Research Institute for Biological Sciences (RIBS), 7549-1 Yoshikawa, Kibichuo-cho, 716-1241, Okayama, Japan aut Journal of General Plant Pathology Springer Japan 77/1(2011-01-01), 33-42 1345-2630 77:1<33 2011 77 10327 https://doi.org/10.1007/s10327-010-0283-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10327-010-0283-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Takabatake Reona Research Institute for Biological Sciences (RIBS), 7549-1 Yoshikawa, Kibichuo-cho, 716-1241, Okayama, Japan aut NATIONALLICENCE 700 1- Mukaihara Takafumi Research Institute for Biological Sciences (RIBS), 7549-1 Yoshikawa, Kibichuo-cho, 716-1241, Okayama, Japan aut NATIONALLICENCE 773 0- Journal of General Plant Pathology Springer Japan 77/1(2011-01-01), 33-42 1345-2630 77:1<33 2011 77 10327 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer