Cell wall reorganization during infection in fungal plant pathogens |
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| Institution: | 1. Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan;2. ZEN-NOH, 4-18-1 Higashi-Yawata, Hiratsuka 254-0016, Japan;3. RIKEN CSRS, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan;1. Information Media Center, Hiroshima University, Higashi-Hiroshima, 739-8521, Japan;2. Department of Physics, Hiroshima University, Higashi-Hiroshima, 739-8526, Japan;3. Instituto de Ciencias del Espacio (ICE/CSIC) and Institut de Estudis Espacials de Catalunya (IEEC), Campus UAB, Carrer de Can Magrans, s/n 08193 Cerdanyola del Vallés (Barcelona), Spain;4. Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain;5. National Research Tomsk State University, 634050 Tomsk, Russia;6. Tomsk State Pedagogical University, 634061 Tomsk, Russia;7. Inst. of Physics, Kazan Federal University, 420008 Kazan, Russia;1. College of Plant Protection, Southwest University, Chongqing, China;2. State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Chongqing, China |
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| Abstract: | The fungal cell wall, which is mainly composed of polysaccharides, is a major source of pathogen-associated molecular patterns (PAMPs). Because PAMPs recognition activates immunity in plants, successful pathogens have developed immune-evasion strategies. Studies of various fungal rice pathogens indicated that masking the cell wall surface with α-1,3-glucan, a polysaccharides that is not degradable by plants, is a fungal PTI evasion strategy. Interestingly, accumulation of α-1,3-glucan at the surface was specifically observed in presence of plants or plant factor(s). Since the surface α-1,3-glucan protected the fungal cell wall from digestive enzymes and interfered with PAMPs generation by host enzymes, fungal α-1,3-glucan is a potential target for plant protection strategies. |
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| Keywords: | PAMPs Fungal plant pathogen Immune evasion Cell wall α-1 3-Glucan |
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