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Far‐red light promotes Botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars
Plants experience a decrease in the red:far‐red light ratio (R:FR) when grown at high planting density. In addition to eliciting the shade avoidance response, low R:FR also enhances plant susceptibility to pathogens via modulation of defense hormone‐mediated responses. However, other mechanisms, als...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley & Sons, Ltd.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693051/ https://www.ncbi.nlm.nih.gov/pubmed/32833234 http://dx.doi.org/10.1111/pce.13870 |
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author | Courbier, Sarah Grevink, Sanne Sluijs, Emma Bonhomme, Pierre‐Olivier Kajala, Kaisa Van Wees, Saskia C. M. Pierik, Ronald |
author_facet | Courbier, Sarah Grevink, Sanne Sluijs, Emma Bonhomme, Pierre‐Olivier Kajala, Kaisa Van Wees, Saskia C. M. Pierik, Ronald |
author_sort | Courbier, Sarah |
collection | PubMed |
description | Plants experience a decrease in the red:far‐red light ratio (R:FR) when grown at high planting density. In addition to eliciting the shade avoidance response, low R:FR also enhances plant susceptibility to pathogens via modulation of defense hormone‐mediated responses. However, other mechanisms, also affected by low R:FR, have not been considered as potential components in FR‐induced susceptibility. Here, we identify FR‐induced accumulation of leaf soluble sugars as a novel component of FR‐induced susceptibility. We observed that phytochrome inactivation by FR or phytochrome B mutation was associated with elevated leaf glucose and fructose levels and enhanced disease severity caused by Botrytis cinerea. By experimentally manipulating internal leaf sugar levels, we found that the FR‐induced susceptibility in tomato was partly sugar‐dependent. Further analysis revealed that the observed sugar accumulation in supplemental FR occurred in a jasmonic acid (JA)‐dependent manner, and the JA biosynthesis mutant def1 also displayed elevated soluble sugar levels, which was rescued by exogenous methyl jasmonate (MeJA) application. We propose that the reduced JA responsiveness under low R:FR promotes disease symptoms not only via dampened induction of defense responses, but also via increased levels of soluble sugars that supports pathogen growth in tomato leaves. |
format | Online Article Text |
id | pubmed-7693051 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley & Sons, Ltd. |
record_format | MEDLINE/PubMed |
spelling | pubmed-76930512020-12-08 Far‐red light promotes Botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars Courbier, Sarah Grevink, Sanne Sluijs, Emma Bonhomme, Pierre‐Olivier Kajala, Kaisa Van Wees, Saskia C. M. Pierik, Ronald Plant Cell Environ Original Articles Plants experience a decrease in the red:far‐red light ratio (R:FR) when grown at high planting density. In addition to eliciting the shade avoidance response, low R:FR also enhances plant susceptibility to pathogens via modulation of defense hormone‐mediated responses. However, other mechanisms, also affected by low R:FR, have not been considered as potential components in FR‐induced susceptibility. Here, we identify FR‐induced accumulation of leaf soluble sugars as a novel component of FR‐induced susceptibility. We observed that phytochrome inactivation by FR or phytochrome B mutation was associated with elevated leaf glucose and fructose levels and enhanced disease severity caused by Botrytis cinerea. By experimentally manipulating internal leaf sugar levels, we found that the FR‐induced susceptibility in tomato was partly sugar‐dependent. Further analysis revealed that the observed sugar accumulation in supplemental FR occurred in a jasmonic acid (JA)‐dependent manner, and the JA biosynthesis mutant def1 also displayed elevated soluble sugar levels, which was rescued by exogenous methyl jasmonate (MeJA) application. We propose that the reduced JA responsiveness under low R:FR promotes disease symptoms not only via dampened induction of defense responses, but also via increased levels of soluble sugars that supports pathogen growth in tomato leaves. John Wiley & Sons, Ltd. 2020-09-04 2020-11 /pmc/articles/PMC7693051/ /pubmed/32833234 http://dx.doi.org/10.1111/pce.13870 Text en © 2020 The Authors. Plant, Cell & Environment published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Articles Courbier, Sarah Grevink, Sanne Sluijs, Emma Bonhomme, Pierre‐Olivier Kajala, Kaisa Van Wees, Saskia C. M. Pierik, Ronald Far‐red light promotes Botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars |
title | Far‐red light promotes Botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars |
title_full | Far‐red light promotes Botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars |
title_fullStr | Far‐red light promotes Botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars |
title_full_unstemmed | Far‐red light promotes Botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars |
title_short | Far‐red light promotes Botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars |
title_sort | far‐red light promotes botrytis cinerea disease development in tomato leaves via jasmonate‐dependent modulation of soluble sugars |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693051/ https://www.ncbi.nlm.nih.gov/pubmed/32833234 http://dx.doi.org/10.1111/pce.13870 |
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