CEP peptide induces susceptibility of Arabidopsis thaliana to non-adapted pathogens |
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Authors: | Fitrianti Aprilia Nur Mai Thanh Luan Phuong Le Thi Monden Hiyori Shiiba Norika Matsui Hidenori Noutoshi Yoshiteru Yamamoto Mikihiro Ichinose Yuki Shiraishi Tomonori Toyoda Kazuhiro |
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Institution: | 1.Laboratory of Plant Pathology and Genetic Engineering, Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama, 700-8530, Japan ;;2.Laboratory of Plant Pathology and Genetic Engineering, Faculty of Agriculrure, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama, 700-8530, Japan ;;3.Hong Duc University, No 565 Quang Trung Street, Dong Ve Ward, Thanh Hoa city, Vietnam ;;4.Research Institute of Biological Sciences (RIBS), Okayama, 7549-1 Yoshikawa, Kibichuo-cho, Kaga-gun, Okayama, 716-1241, Japan ; |
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Abstract: | CEP peptide was synthesized and tested for induction of disease susceptibility using Arabidopsis Col-0. When Colletotrichum tropicale was used as a non-adapted fungal pathogen, the conidia germinated to form hyphal-like structures, which successfully penetrated epidermis, eventually causing disease symptoms. In such case, PEN2-, but not PEN3-dependent resistance was likely suppressed by CEP peptide. Similarly, the CEP peptide-mediated disease susceptibility was also effective to a non-adapted bacterial pathogen. Notably, such induced susceptibility was also evident on Arabidopsis mutants lacking the previously identified receptors, suggesting that the CEP peptide modulates Arabidopsis immunity through an unidentified receptor(s). |
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