The molecular associations between the SnRK1 complex and carbon/nitrogen metabolism in plants

New Crops Pub Date : 2023-12-15 DOI:10.1016/j.ncrops.2023.12.003

Chao Han , Honglei Wang , Wen Shi , Ming-Yi Bai

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Abstract

Sucrose non-fermenting1 (SNF1)-related kinase 1 (SnRK1) serves as a conserved molecular entity in plants, responding to energy stresses such as prolonged darkness, hypoxia, and photosynthesis inhibition. Its role involves orchestrating transcriptional reprogramming to enhance plant fitness in diverse environments. In this study, we delve into how SnRK1 influences carbon and nitrogen metabolism in Arabidopsis and other crop species through both transcriptional regulation and direct phosphorylation modification. Additionally, we explore the impact of sugar metabolites on SnRK1 activity in plants. The assembly mechanisms of the SnRK1 complex are also investigated by drawing insights from mammalian and yeast systems. Furthermore, we provide a comprehensive summary of the interplay between SnRK1 activity, autophagy, and virus defense. Collectively, our findings illuminate the intricate molecular connections between the SnRK1 complex and carbon/nitrogen metabolism in plants.

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SnRK1 复合物与植物碳/氮代谢之间的分子联系

蔗糖不发酵1（SNF1）相关激酶1（SnRK1）是植物中一个保守的分子实体，可对能量胁迫（如长期黑暗、缺氧和光合作用抑制）做出反应。它的作用包括协调转录重编程，以提高植物在不同环境中的适应性。在本研究中，我们将深入研究 SnRK1 如何通过转录调控和直接磷酸化修饰影响拟南芥和其他作物物种的碳氮代谢。此外，我们还探讨了糖代谢产物对植物 SnRK1 活性的影响。我们还从哺乳动物和酵母系统中汲取灵感，研究了 SnRK1 复合物的组装机制。此外，我们还全面总结了 SnRK1 活性、自噬和病毒防御之间的相互作用。总之，我们的研究结果阐明了 SnRK1 复合物与植物碳/氮代谢之间错综复杂的分子联系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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New Crops

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