Réthoré Elise, Ali Nusrat, Pluchon Sylvain, Hosseini Seyed Abdollah
Plant Nutrition R&D Department, Centre Mondial de l'Innovation of Roullier Group, 35400 Saint Malo, France.
Phys-Chem and Bio-Analytics R&D Department, Centre Mondial de l'Innovation of Roullier Group, 35400 Saint-Malo, France.
Plants (Basel). 2023 Jul 7;12(13):2574. doi: 10.3390/plants12132574.
Boron (B) is an essential micronutrient for plants, and its deficiency is a widespread nutritional disorder, particularly in high-demanding crops like . 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 and in both young leaves and roots. The uptake labelling experiment showed the remobilization of previously fixed 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 gene and by remobilizing B to young tissues.
硼（B）是植物必需的微量营养素，其缺乏是一种广泛存在的营养失调现象，尤其是在像[具体作物未提及]这样的高需求作物中。在过去几十年中，硅（Si）已被证明可以减轻植物对不同大量和微量营养素的缺乏。然而，关于硼和硅相互作用的研究大多集中在通过施用硅来缓解硼毒性方面。在本研究中，我们调查了在长期缺硼（0.1μM硼处理20天）条件下，水培种植的油菜植株施用硅的效果。此外，还进行了硼吸收标记实验，并监测了缺硼2至15天期间参与硼吸收的基因表达。结果表明，硅显著改善了缺硼条件下油菜植株的生长，地上部和根部分别提高了34%和49%。它还增加了幼叶和根部[具体基因未提及]和[具体基因未提及]的表达水平。吸收标记实验表明，先前固定在老叶中的硼被重新转运到新组织中。本研究通过改变[具体基因未提及]基因的表达以及将硼重新转运到幼嫩组织中，进一步证明了在缺硼条件下硅的有益作用。
