Anthropogenic activities in the past and present eras have created global warming and consequently a storm of drought stress, affecting both plants and animals. Being sessile, plants are more vulnerable to drought stress and consequently reduce plant growth and yield. To mitigate the effects of drought stress on plants, it is very crucial to determine the plant response mechanisms against drought stress. Drought response mechanism includes morph-physiological, biochemical, cellular and molecular processes takes place in plants underlying drought stress. These processes include improvement in root system, leaf structure, osmotic adjustment, relative water content and stomata regulation. In addition, calcium and phytohormone (Abscisic acid, Jasmonic acid, Salicylic acid, Auxins, Gibberellins, Ethylene etc.) signaling pathways and scavenging of reactive oxygen species are the key mechanisms to cope with drought stress. Moreover, microorganisms such as bacteria and fungi also have an important role in drought tolerance enhancement. To further elucidate and improve drought tolerance in plants, quantitative trait loci, transgenic approach and application of exogenous substances (nitric oxide, 24-epibrassinoide, glycine betaine and proline) are very crucial. Hereby, the present study integrates various mechanisms of drought tolerance in plants.

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植物的耐旱策略：一种机械方法

过去和现在的人为活动造成了全球变暖，从而引发了干旱压力风暴，影响了植物和动物。由于无柄，植物更容易受到干旱胁迫，从而降低植物的生长和产量。为了减轻干旱胁迫对植物的影响，确定植物对干旱胁迫的反应机制非常重要。干旱响应机制包括植物在干旱胁迫下发生的形态生理、生化、细胞和分子过程。这些过程包括根系、叶结构、渗透调节、相对含水量和气孔调节的改善。此外，钙和植物激素（脱落酸、茉莉酸、水杨酸、生长素、赤霉素、乙烯等）。) 信号通路和清除活性氧是应对干旱胁迫的关键机制。此外，细菌和真菌等微生物在提高耐旱性方面也有重要作用。为了进一步阐明和提高植物的耐旱性，数量性状基因座、转基因方法和外源物质（一氧化氮、24-表布拉斯内德、甘氨酸甜菜碱和脯氨酸）的应用非常关键。因此，本研究整合了植物耐旱的各种机制。转基因方法和外源物质（一氧化氮、24-表布拉素、甘氨酸甜菜碱和脯氨酸）的应用非常关键。因此，本研究整合了植物耐旱的各种机制。转基因方法和外源物质（一氧化氮、24-表布拉素、甘氨酸甜菜碱和脯氨酸）的应用非常关键。因此，本研究整合了植物耐旱的各种机制。