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Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance

Increased light intensity has been predicted as a major consequence of climate change. Light intensity is a critical resource involved in many plant processes, including the interaction with viruses. A central question to plant–virus interactions is understanding the determinants of virus dispersal...

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Autores principales: Montes, Nuria, Pagán, Israel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6783938/
https://www.ncbi.nlm.nih.gov/pubmed/31461899
http://dx.doi.org/10.3390/plants8090304
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author Montes, Nuria
Pagán, Israel
author_facet Montes, Nuria
Pagán, Israel
author_sort Montes, Nuria
collection PubMed
description Increased light intensity has been predicted as a major consequence of climate change. Light intensity is a critical resource involved in many plant processes, including the interaction with viruses. A central question to plant–virus interactions is understanding the determinants of virus dispersal among plants. However, very little is known on the effect of environmental factors on virus transmission, particularly through seeds. The fitness of seed-transmitted viruses is highly dependent on host reproductive potential, and requires higher virus multiplication in reproductive organs. Thus, environmental conditions that favor reduced virus virulence without controlling its level of within-plant multiplication (i.e., tolerance) may enhance seed transmission. We tested the hypothesis that light intensity conditions that enhance plant tolerance promote virus seed transmission. To do so, we challenged 18 Arabidopsis thaliana accessions with Turnip mosaic virus (TuMV) and Cucumber mosaic virus (CMV) under high and low light intensity. Results indicated that higher light intensity increased TuMV multiplication and/or plant tolerance, which was associated with more efficient seed transmission. Conversely, higher light intensity reduced plant tolerance and CMV multiplication, and had no effect on seed transmission. This work provides novel insights on how environmental factors modulate plant virus transmission and contributes to understand the underlying processes.
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spelling pubmed-67839382019-10-16 Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance Montes, Nuria Pagán, Israel Plants (Basel) Article Increased light intensity has been predicted as a major consequence of climate change. Light intensity is a critical resource involved in many plant processes, including the interaction with viruses. A central question to plant–virus interactions is understanding the determinants of virus dispersal among plants. However, very little is known on the effect of environmental factors on virus transmission, particularly through seeds. The fitness of seed-transmitted viruses is highly dependent on host reproductive potential, and requires higher virus multiplication in reproductive organs. Thus, environmental conditions that favor reduced virus virulence without controlling its level of within-plant multiplication (i.e., tolerance) may enhance seed transmission. We tested the hypothesis that light intensity conditions that enhance plant tolerance promote virus seed transmission. To do so, we challenged 18 Arabidopsis thaliana accessions with Turnip mosaic virus (TuMV) and Cucumber mosaic virus (CMV) under high and low light intensity. Results indicated that higher light intensity increased TuMV multiplication and/or plant tolerance, which was associated with more efficient seed transmission. Conversely, higher light intensity reduced plant tolerance and CMV multiplication, and had no effect on seed transmission. This work provides novel insights on how environmental factors modulate plant virus transmission and contributes to understand the underlying processes. MDPI 2019-08-27 /pmc/articles/PMC6783938/ /pubmed/31461899 http://dx.doi.org/10.3390/plants8090304 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Montes, Nuria
Pagán, Israel
Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance
title Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance
title_full Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance
title_fullStr Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance
title_full_unstemmed Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance
title_short Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance
title_sort light intensity modulates the efficiency of virus seed transmission through modifications of plant tolerance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6783938/
https://www.ncbi.nlm.nih.gov/pubmed/31461899
http://dx.doi.org/10.3390/plants8090304
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