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Chitin Triggers Calcium-Mediated Immune Response in the Plant Model Physcomitrella patens.
Galotto, Giulia; Abreu, Isidro; Sherman, Catherine; Liu, Boyuan; Gonzalez-Guerrero, Manuel; Vidali, Luis.
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  • Galotto G; Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, MA, U.S.A.
  • Abreu I; Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Madrid, Spain.
  • Sherman C; Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, MA, U.S.A.
  • Liu B; Bioinformatics and Computational Biology Program, Worcester Polytechnic Institute, Worcester, MA, U.S.A.
  • Gonzalez-Guerrero M; Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, MA, U.S.A.
  • Vidali L; Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Madrid, Spain.
Mol Plant Microbe Interact ; 33(7): 911-920, 2020 Jul.
Article en En | MEDLINE | ID: mdl-32240064
A characteristic feature of a plant immune response is the increase of the cytosolic calcium (Ca2+) concentration following infection, which results in the downstream activation of immune response regulators. The bryophyte Physcomitrella patens has been shown to mount an immune response when exposed to bacteria, fungi, or chitin elicitation, in a manner similar to the one observed in Arabidopsis thaliana. Nevertheless, whether the response of P. patens to microorganism exposure is Ca2+ mediated is currently unknown. Here, we show that P. patens plants treated with chitin oligosaccharides exhibit Ca2+ oscillations, and that a calcium ionophore can stimulate the expression of defense-related genes. Treatment with chitin oligosaccharides also results in an inhibition of growth, which can be explained by the depolymerization of the apical actin cytoskeleton of tip growing cells. These results suggest that chitin-triggered calcium oscillations are conserved and were likely present in the common ancestor of bryophytes and vascular plants.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Quitina / Calcio / Bryopsida Tipo de estudio: Prognostic_studies Idioma: En Revista: Mol Plant Microbe Interact Asunto de la revista: BIOLOGIA MOLECULAR / BOTANICA / MICROBIOLOGIA Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Quitina / Calcio / Bryopsida Tipo de estudio: Prognostic_studies Idioma: En Revista: Mol Plant Microbe Interact Asunto de la revista: BIOLOGIA MOLECULAR / BOTANICA / MICROBIOLOGIA Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos