Citrus Research Institute, Southwest University, Chongqing 400712, People's Republic of China.
National Citrus Engineering Research Center, Chongqing 400712, People's Republic of China.
J Agric Food Chem. 2022 May 4;70(17):5273-5283. doi: 10.1021/acs.jafc.2c00582. Epub 2022 Apr 21.
The occurrence of plant diseases severely affects the quality and quantity of plant production. Plants adapt to the constant invasion of pathogens and gradually form a series of defense mechanisms, such as pathogen-associated molecular pattern-triggered immunity and microbial effector-triggered immunity. Moreover, many pathogens have evolved to inhibit the immune defense system and acquire plant nutrients as a result of their coevolution with plants. The sugars will eventually be exported transporters (SWEETs) are a novel family of sugar transporters that function as uniporters. They provide a channel for pathogens, including bacteria, fungi, and viruses, to hijack sugar from the host. In this review, we summarize the functions of SWEETs in nectar secretion, grain loading, senescence, and long-distance transport. We also focus on the interaction between the genes and pathogens. In addition, we provide insight into the potential application of genes to enhance disease resistance through the use of genome editing tools. The summary and perspective of this review will deepen our understanding of the role of during the process of pathogen infection and provide insights into resistance breeding.
植物病害的发生严重影响植物生产的质量和数量。植物适应病原体的持续入侵，并逐渐形成一系列防御机制，如病原体相关分子模式触发的免疫和微生物效应子触发的免疫。此外，许多病原体为了抑制植物的免疫防御系统并获取植物养分，在与植物的共同进化过程中发生了进化。出现在细胞壁的糖将最终被输出载体（SWEET）是糖转运蛋白的一个新家族，它们作为单载体起作用。它们为包括细菌、真菌和病毒在内的病原体提供了从宿主劫持糖的通道。在这篇综述中，我们总结了 SWEET 在花蜜分泌、谷物装载、衰老和长距离运输中的功能。我们还重点介绍了基因与病原体之间的相互作用。此外，我们还通过使用基因组编辑工具，提供了利用基因提高抗病性的潜在应用的见解。本文的总结和展望将加深我们对基因在病原体感染过程中作用的理解，并为抗性育种提供新的思路。
