Silicon Enhances <i>Brassica napus</i> Tolerance to Boron Deficiency by the Remobilisation of Boron and by Changing the Expression of Boron Transporters

Boron (B) is an essential micronutrient for plants, and its deficiency is a widespread nutritional disorder, particularly in high-demanding crops like <i>Brassica napus</i>. Over the past few decades, silicon (Si) has been shown to mitigate plant nutrient deficiencies of different macro-...

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Main Authors: Elise Réthoré, Nusrat Ali, Sylvain Pluchon, Seyed Abdollah Hosseini
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/12/13/2574
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author Elise Réthoré
Nusrat Ali
Sylvain Pluchon
Seyed Abdollah Hosseini
author_facet Elise Réthoré
Nusrat Ali
Sylvain Pluchon
Seyed Abdollah Hosseini
author_sort Elise Réthoré
collection DOAJ
description Boron (B) is an essential micronutrient for plants, and its deficiency is a widespread nutritional disorder, particularly in high-demanding crops like <i>Brassica napus</i>. Over the past few decades, silicon (Si) has been shown to mitigate plant nutrient deficiencies of different macro- and micro-nutrients. However, the work on B and Si cross-talk has mostly been focused on the alleviation of B toxicity by Si application. In the present study, we investigated the effect of Si application on rapeseed plants grown hydroponically under long-term B deficiency (20 days at 0.1 µM B). In addition, a B-uptake labelling experiment was conducted, and the expression of the genes involved in B uptake were monitored between 2 and 15 days of B shortage. The results showed that Si significantly improved rapeseed plant growth under B deficiency by 34% and 49% in shoots and roots, respectively. It also increased the expression level of <i>BnaNIP5;1</i> and <i>BOR1;2c</i> in both young leaves and roots. The uptake labelling experiment showed the remobilization of previously fixed <sup>11</sup>B from old leaves to new tissues. This study provides additional evidence of the beneficial effects of Si under conditions lacking B by changing the expression of the <i>BnaNIP5;1</i> gene and by remobilizing <sup>11</sup>B to young tissues.
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spelling doaj.art-ee56900ff48d4ebd955d56ced8f3739f2023-11-18T17:19:26ZengMDPI AGPlants2223-77472023-07-011213257410.3390/plants12132574Silicon Enhances <i>Brassica napus</i> Tolerance to Boron Deficiency by the Remobilisation of Boron and by Changing the Expression of Boron TransportersElise Réthoré0Nusrat Ali1Sylvain Pluchon2Seyed Abdollah Hosseini3Plant Nutrition R&D Department, Centre Mondial de l’Innovation of Roullier Group, 35400 Saint Malo, FrancePhys-Chem and Bio-Analytics R&D Department, Centre Mondial de l’Innovation of Roullier Group, 35400 Saint-Malo, FrancePlant Nutrition R&D Department, Centre Mondial de l’Innovation of Roullier Group, 35400 Saint Malo, FrancePlant Nutrition R&D Department, Centre Mondial de l’Innovation of Roullier Group, 35400 Saint Malo, FranceBoron (B) is an essential micronutrient for plants, and its deficiency is a widespread nutritional disorder, particularly in high-demanding crops like <i>Brassica napus</i>. Over the past few decades, silicon (Si) has been shown to mitigate plant nutrient deficiencies of different macro- and micro-nutrients. However, the work on B and Si cross-talk has mostly been focused on the alleviation of B toxicity by Si application. In the present study, we investigated the effect of Si application on rapeseed plants grown hydroponically under long-term B deficiency (20 days at 0.1 µM B). In addition, a B-uptake labelling experiment was conducted, and the expression of the genes involved in B uptake were monitored between 2 and 15 days of B shortage. The results showed that Si significantly improved rapeseed plant growth under B deficiency by 34% and 49% in shoots and roots, respectively. It also increased the expression level of <i>BnaNIP5;1</i> and <i>BOR1;2c</i> in both young leaves and roots. The uptake labelling experiment showed the remobilization of previously fixed <sup>11</sup>B from old leaves to new tissues. This study provides additional evidence of the beneficial effects of Si under conditions lacking B by changing the expression of the <i>BnaNIP5;1</i> gene and by remobilizing <sup>11</sup>B to young tissues.https://www.mdpi.com/2223-7747/12/13/2574nutrient crosstalknutrient deprivationplant nutritiongene regulatory networkstress tolerance
spellingShingle Elise Réthoré
Nusrat Ali
Sylvain Pluchon
Seyed Abdollah Hosseini
Silicon Enhances <i>Brassica napus</i> Tolerance to Boron Deficiency by the Remobilisation of Boron and by Changing the Expression of Boron Transporters
Plants
nutrient crosstalk
nutrient deprivation
plant nutrition
gene regulatory network
stress tolerance
title Silicon Enhances <i>Brassica napus</i> Tolerance to Boron Deficiency by the Remobilisation of Boron and by Changing the Expression of Boron Transporters
title_full Silicon Enhances <i>Brassica napus</i> Tolerance to Boron Deficiency by the Remobilisation of Boron and by Changing the Expression of Boron Transporters
title_fullStr Silicon Enhances <i>Brassica napus</i> Tolerance to Boron Deficiency by the Remobilisation of Boron and by Changing the Expression of Boron Transporters
title_full_unstemmed Silicon Enhances <i>Brassica napus</i> Tolerance to Boron Deficiency by the Remobilisation of Boron and by Changing the Expression of Boron Transporters
title_short Silicon Enhances <i>Brassica napus</i> Tolerance to Boron Deficiency by the Remobilisation of Boron and by Changing the Expression of Boron Transporters
title_sort silicon enhances i brassica napus i tolerance to boron deficiency by the remobilisation of boron and by changing the expression of boron transporters
topic nutrient crosstalk
nutrient deprivation
plant nutrition
gene regulatory network
stress tolerance
url https://www.mdpi.com/2223-7747/12/13/2574
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AT sylvainpluchon siliconenhancesibrassicanapusitolerancetoborondeficiencybytheremobilisationofboronandbychangingtheexpressionofborontransporters
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