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Growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity

Plant ecologists and molecular biologists have long considered the hypothesis of a trade-off between plant growth and defence separately. In particular, how genes thought to control the growth–defence trade-off at the molecular level relate to trait-based frameworks in functional ecology, such as th...

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Autores principales: de Tombeur, Felix, Pélissier, Rémi, Shihan, Ammar, Rahajaharilaza, Koloina, Fort, Florian, Mahaut, Lucie, Lemoine, Taïna, Thorne, Sarah J, Hartley, Sue E, Luquet, Delphine, Fabre, Denis, Lambers, Hans, Morel, Jean-Benoît, Ballini, Elsa, Violle, Cyrille
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10199124/
https://www.ncbi.nlm.nih.gov/pubmed/36840921
http://dx.doi.org/10.1093/jxb/erad071
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author de Tombeur, Felix
Pélissier, Rémi
Shihan, Ammar
Rahajaharilaza, Koloina
Fort, Florian
Mahaut, Lucie
Lemoine, Taïna
Thorne, Sarah J
Hartley, Sue E
Luquet, Delphine
Fabre, Denis
Lambers, Hans
Morel, Jean-Benoît
Ballini, Elsa
Violle, Cyrille
author_facet de Tombeur, Felix
Pélissier, Rémi
Shihan, Ammar
Rahajaharilaza, Koloina
Fort, Florian
Mahaut, Lucie
Lemoine, Taïna
Thorne, Sarah J
Hartley, Sue E
Luquet, Delphine
Fabre, Denis
Lambers, Hans
Morel, Jean-Benoît
Ballini, Elsa
Violle, Cyrille
author_sort de Tombeur, Felix
collection PubMed
description Plant ecologists and molecular biologists have long considered the hypothesis of a trade-off between plant growth and defence separately. In particular, how genes thought to control the growth–defence trade-off at the molecular level relate to trait-based frameworks in functional ecology, such as the slow–fast plant economics spectrum, is unknown. We grew 49 phenotypically diverse rice genotypes in pots under optimal conditions and measured growth-related functional traits and the constitutive expression of 11 genes involved in plant defence. We also quantified the concentration of silicon (Si) in leaves to estimate silica-based defences. Rice genotypes were aligned along a slow–fast continuum, with slow-growing, late-flowering genotypes versus fast-growing, early-flowering genotypes. Leaf dry matter content and leaf Si concentrations were not aligned with this axis and negatively correlated with each other. Live-fast genotypes exhibited greater expression of OsNPR1, a regulator of the salicylic acid pathway that promotes plant defence while suppressing plant growth. These genotypes also exhibited greater expression of SPL7 and GH3.2, which are also involved in both stress resistance and growth. Our results do not support the hypothesis of a growth–defence trade-off when leaf Si and leaf dry matter content are considered, but they do when hormonal pathway genes are considered. We demonstrate the benefits of combining ecological and molecular approaches to elucidate the growth–defence trade-off, opening new avenues for plant breeding and crop science.
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spelling pubmed-101991242023-05-21 Growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity de Tombeur, Felix Pélissier, Rémi Shihan, Ammar Rahajaharilaza, Koloina Fort, Florian Mahaut, Lucie Lemoine, Taïna Thorne, Sarah J Hartley, Sue E Luquet, Delphine Fabre, Denis Lambers, Hans Morel, Jean-Benoît Ballini, Elsa Violle, Cyrille J Exp Bot Research Papers Plant ecologists and molecular biologists have long considered the hypothesis of a trade-off between plant growth and defence separately. In particular, how genes thought to control the growth–defence trade-off at the molecular level relate to trait-based frameworks in functional ecology, such as the slow–fast plant economics spectrum, is unknown. We grew 49 phenotypically diverse rice genotypes in pots under optimal conditions and measured growth-related functional traits and the constitutive expression of 11 genes involved in plant defence. We also quantified the concentration of silicon (Si) in leaves to estimate silica-based defences. Rice genotypes were aligned along a slow–fast continuum, with slow-growing, late-flowering genotypes versus fast-growing, early-flowering genotypes. Leaf dry matter content and leaf Si concentrations were not aligned with this axis and negatively correlated with each other. Live-fast genotypes exhibited greater expression of OsNPR1, a regulator of the salicylic acid pathway that promotes plant defence while suppressing plant growth. These genotypes also exhibited greater expression of SPL7 and GH3.2, which are also involved in both stress resistance and growth. Our results do not support the hypothesis of a growth–defence trade-off when leaf Si and leaf dry matter content are considered, but they do when hormonal pathway genes are considered. We demonstrate the benefits of combining ecological and molecular approaches to elucidate the growth–defence trade-off, opening new avenues for plant breeding and crop science. Oxford University Press 2023-02-25 /pmc/articles/PMC10199124/ /pubmed/36840921 http://dx.doi.org/10.1093/jxb/erad071 Text en © The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Papers
de Tombeur, Felix
Pélissier, Rémi
Shihan, Ammar
Rahajaharilaza, Koloina
Fort, Florian
Mahaut, Lucie
Lemoine, Taïna
Thorne, Sarah J
Hartley, Sue E
Luquet, Delphine
Fabre, Denis
Lambers, Hans
Morel, Jean-Benoît
Ballini, Elsa
Violle, Cyrille
Growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity
title Growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity
title_full Growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity
title_fullStr Growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity
title_full_unstemmed Growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity
title_short Growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity
title_sort growth–defence trade-off in rice: fast-growing and acquisitive genotypes have lower expression of genes involved in immunity
topic Research Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10199124/
https://www.ncbi.nlm.nih.gov/pubmed/36840921
http://dx.doi.org/10.1093/jxb/erad071
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