Ogasawara Gustavo Akio, Hotta Carlos Takeshi, Dodd Antony N
John Innes Centre, Norwich Research Park, Norwich, NR4 7RU, UK.
Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.
New Phytol. 2025 Sep;247(6):2557-2563. doi: 10.1111/nph.70346. Epub 2025 Jun 29.
Agrochemicals play an important role in maximizing agricultural yields. One class of agrochemicals is herbicides, which are used for weed control and to kill the top growth of certain crops before harvest. We examine the influence of plant circadian regulation on herbicide effectiveness to exemplify how knowledge of the circadian clock could be mobilized to optimize agrochemical use. First, we briefly introduce the circadian clock, highlighting its role in plant fitness and regulating physiological and metabolic pathways. Second, we discuss principles of chronotoxicity and the range of herbicides across which agrochemical interventions might be optimized with knowledge of circadian rhythms. Using existing data, we find that a substantial number of pathways targeted by herbicides are subject to circadian clock regulation, opening the possibility that clock control of herbicide effectiveness could be widespread. Finally, we suggest potential practical applications, explaining how this could enhance resource use efficiency, reduce inputs, and mitigate environmental impacts.
农用化学品在使农业产量最大化方面发挥着重要作用。一类农用化学品是除草剂，用于杂草控制以及在收获前杀死某些作物的地上部分。我们研究植物昼夜节律调节对除草剂效果的影响，以举例说明如何利用昼夜节律的知识来优化农用化学品的使用。首先，我们简要介绍昼夜节律钟，强调其在植物适应性以及调节生理和代谢途径中的作用。其次，我们讨论时辰毒性的原理以及一系列除草剂，了解昼夜节律知识可能会优化这些除草剂的农用化学品干预措施。利用现有数据，我们发现除草剂靶向的大量途径受昼夜节律钟调节，这表明昼夜节律对除草剂效果的控制可能很普遍。最后，我们提出潜在的实际应用，解释这如何提高资源利用效率、减少投入并减轻环境影响。
