Castelblanque, L.; García-Andrade, J.; Martínez-Arias, C.; Rodríguez, JJ.; Escaray, FJ.; Aguilar-Fenollosa, E.; Jaques, JA.... (2021). Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens. Plant communications. 2(3):1-15. https://doi.org/10.1016/j.xplc.2020.100112
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/189530
Title:
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Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens
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Author:
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Castelblanque, L.
García-Andrade, Javier
Martínez-Arias, Clara
Rodríguez, Juan J.
Escaray, Francisco J.
Aguilar-Fenollosa, Ernestina
Jaques, Josep A.
Vera Vera, Pablo
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Biología Molecular y Celular de Plantas - Institut Universitari Mixt de Biologia Molecular i Cel·lular de Plantes
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Issued date:
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Abstract:
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[EN] More than 12,000 plant species (ca. 10% of flowering plants) exude latex when their tissues are injured. Latex is produced and stored in specialized cells named "laticifers''. Laticifers form a tubing system composed ...[+]
[EN] More than 12,000 plant species (ca. 10% of flowering plants) exude latex when their tissues are injured. Latex is produced and stored in specialized cells named "laticifers''. Laticifers form a tubing system composed of rows of elongated cells that branch and create an internal network encompassing the entire plant. Laticifers constitute a recent evolutionary achievement in ecophysiological adaptation to specific natural environments; however, their fitness benefit to the plant still remains to be proven. The identification of Euphorbia lathyris mutants (pil mutants) deficient in laticifer cells or latex metabolism, and therefore compromised in latex production, allowed us to test the importance of laticifers in pest resistance. We provided genetic evidence indicating that laticifers represent a cellular adaptation for an essential defense strategy to fend off arthropod herbivores with different feeding habits, such as Spodoptera exigua and Tetranychus urticae. In marked contrast, we also discovered that a lack of laticifer cells causes complete resistance to the fungal pathogen Botrytis cinerea. Thereafter, a latex-derived factor required for conidia germination on the leaf surface was identified. This factor promoted disease susceptibility enhancement even in the non-latex-bearing plant Arabidopsis. We speculate on the role of laticifers in the coevolutionary arms race between plants and their enemies.
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Subjects:
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Latex
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Euphorbia lathyris
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Disease resistance
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Disease susceptibility
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Plant defense
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Copyrigths:
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Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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Source:
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Plant communications. (eissn:
2590-3462
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DOI:
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10.1016/j.xplc.2020.100112
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Publisher:
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Cell Press
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Publisher version:
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https://doi.org/10.1016/j.xplc.2020.100112
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Project ID:
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-098501-B-I00/ES/NUEVOS MEDIADORES DE LA ACTIVACION DE MECANISMOS DE RESISTENCIA Y DE FACTORES SUSCEPTIBILIDAD DE LA PLANTA A MICROORGANISMOS PATOGENOS/
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Thanks:
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This work was supported by a grant from the Agencia Estatal de Investigacion (AEI), Spain (RTI2018-098501-B-I00).
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Type:
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Artículo
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