请用科技语言改写下面内容：Plants have developed a range of tolerance mechanisms to combat drought stresses over the course of their evolution They increase concentrations of organic solutes or osmoprotectants belo

Throughout their evolutionary history, plants have developed a multitude of tolerance mechanisms to counteract the negative effects of drought stress. These include the upregulation of organic solutes or osmoprotectants, which are categorized into specific groups such as ammonium compounds, sugar and sugar alcohols, and amino acids.