@article{
author = "Savic, Jasna and Pavlovic, Jelena and Stanojevic, Milos and Bosnic, Predrag and Kostic Kravljanac, Ljiljana and Nikolic, Nina and Nikolic, Miroslav",
year = "2023",
abstract = "Monocots and dicots differ in their boron (B) requirement, but also in their capacity to accumulate silicon (Si). Although an ameliorative effect of Si on B toxicity has been reported in various crops, differences among monocots and dicots are not clear, in particular in light of their ability to retain B in the leaf apoplast. In hydroponic experiments under controlled conditions, we studied the role of Si in the compartmentation of B within the leaves of wheat (Triticum vulgare L.) as a model of a high-Si monocot and sunflower (Helianthus annuus L.) as a model of a low-Si dicot, with the focus on the leaf apoplast. The stable isotopes 10B and 11B were used to investigate the dynamics of cell wall B binding capacity. In both crops, the application of Si did not affect B concentration in the root, but significantly decreased the B concentration in the leaves. However, the application of Si differently influenced the binding capacity of the leaf apoplast for excess B in wheat and sunflower. In wheat, whose capacity to retain B in the leaf cell walls is lower than in sunflower, the continuous supply of Si is crucial for an enhancement of high B tolerance in the shoot. On the other hand, the supply of Si did not contribute significantly in the extension of the B binding sites in sunflower leaves. © 2023 by the authors.",
journal = "Plants, Plants",
title = "Silicon Differently Affects Apoplastic Binding of Excess Boron in Wheat and Sunflower Leaves",
number = "8",
volume = "12",
doi = "10.3390/plants12081660"
}