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Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens
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 t...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8132127/ https://www.ncbi.nlm.nih.gov/pubmed/34027388 http://dx.doi.org/10.1016/j.xplc.2020.100112 |
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author | Castelblanque, Lourdes García-Andrade, Javier Martínez-Arias, Clara Rodríguez, Juan J. Escaray, Francisco J. Aguilar-Fenollosa, Ernestina Jaques, Josep A. Vera, Pablo |
author_facet | Castelblanque, Lourdes García-Andrade, Javier Martínez-Arias, Clara Rodríguez, Juan J. Escaray, Francisco J. Aguilar-Fenollosa, Ernestina Jaques, Josep A. Vera, Pablo |
author_sort | Castelblanque, Lourdes |
collection | PubMed |
description | 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 co-evolutionary arms race between plants and their enemies. |
format | Online Article Text |
id | pubmed-8132127 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-81321272021-05-21 Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens Castelblanque, Lourdes García-Andrade, Javier Martínez-Arias, Clara Rodríguez, Juan J. Escaray, Francisco J. Aguilar-Fenollosa, Ernestina Jaques, Josep A. Vera, Pablo Plant Commun Research Article 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 co-evolutionary arms race between plants and their enemies. Elsevier 2020-09-11 /pmc/articles/PMC8132127/ /pubmed/34027388 http://dx.doi.org/10.1016/j.xplc.2020.100112 Text en © 2020 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Castelblanque, Lourdes García-Andrade, Javier Martínez-Arias, Clara Rodríguez, Juan J. Escaray, Francisco J. Aguilar-Fenollosa, Ernestina Jaques, Josep A. Vera, Pablo Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens |
title | Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens |
title_full | Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens |
title_fullStr | Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens |
title_full_unstemmed | Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens |
title_short | Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens |
title_sort | opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8132127/ https://www.ncbi.nlm.nih.gov/pubmed/34027388 http://dx.doi.org/10.1016/j.xplc.2020.100112 |
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