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Descripción
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| Chitin is the second most abundant polysaccharide i n nature after cellulose, forming a fundamental part of the exoskeleton of insects, crustaceans, an d fungal spores. Plants recognize chitin through specific receptors activating innate immune defense mechanisms against phytopathogens containing chitin (1-4). Under situations of dramat ic stress as heat shock, organisms are able to produce widespread inhibition of protein translatio n, favoring the selective translation of certain proteins essential for survival (5). In this study we show that the detection of chitin by plants is associated not only with the inductio n of the transcription of genes related to innate imm unity, a very well-known process (4, 6, 7), but als o to a selective inhibition of protein translation. T he results show that this inhibition is associated with the phosphorylation of the EIF2 ? translation initiation factor and that this phosph orylation depends on GCN2 protein kinase activity. References: (1) Tingting Liu, et al., Science 336: 1160 (2012). (2) Ramonell K, et al., Plant Physiology 138(2):102 7 (2005). (3) Wan J,.et al., Plant Cell. 20(2):471 (2008). (4) Berrocal-Lobo M, et al., PLoSOne. 5(12):e144262 010 (2010). (5) Yángüez E, et al., PLoSOne. 19; 8(8):e71425 (20 13). (6) Ramonell et al., Molecular Plant Pathology 3(5) :301 (2002). (7) Zhang B, et al., Molecular Plant Microbe Intera ction 15(9):963(2002). | |
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Internacional
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Si |
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Nombre congreso
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XVI International Congress on Molecular Plant-Microbe interactions |
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Tipo de participación
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960 |
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Lugar del congreso
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Revisores
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Si |
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ISBN o ISSN
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0000-0000 |
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DOI
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Fecha inicio congreso
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06/07/2014 |
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Fecha fin congreso
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10/07/2014 |
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Desde la página
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473 |
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Hasta la página
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473 |
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Título de las actas
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XVI International Congress on Molecular Plant-Microbe interactions |