School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
Int J Mol Sci. 2023 Sep 12;24(18):13993. doi: 10.3390/ijms241813993.
Affected by global warming; heat stress is the main limiting factor for crop growth and development. prefers cool weather, and heat stress has a significant negative impact on its growth, development, and metabolism. Understanding the regulatory patterns of heat-resistant and heat-sensitive varieties under heat stress can help deepen understanding of plant heat tolerance mechanisms. In this study, an integrative analysis of transcriptome and metabolome was performed on the heat-tolerant ('') and heat-sensitive ('') lines of to reveal the regulatory networks correlated to heat tolerance and to identify key regulatory genes. Heat stress was applied to two cultivars, and the leaves were analyzed at the transcriptional and metabolic levels. The results suggest that the heat shock protein (HSP) family, plant hormone transduction, chlorophyll degradation, photosynthetic pathway, and reactive oxygen species (ROS) metabolism play an outstanding role in the adaptation mechanism of plant heat tolerance. Our discovery lays the foundation for future breeding of horticultural crops for heat resistance.
受全球变暖影响；热应激是作物生长和发育的主要限制因素。 喜欢凉爽的天气，热应激对其生长、发育和新陈代谢有显著的负面影响。了解耐热和热敏品种在热应激下的调节模式有助于加深对植物耐热机制的理解。在这项研究中，对耐热（' ）和热敏（' ）品系进行了转录组和代谢组的综合分析，以揭示与耐热性相关的调节网络，并鉴定关键调节基因。对两个 品种进行了热应激处理，并在转录和代谢水平上分析了叶片。结果表明，热休克蛋白（HSP）家族、植物激素转导、叶绿素降解、光合作用途径和活性氧（ROS）代谢在植物耐热适应机制中起着重要作用。我们的发现为未来耐热园艺作物的培育奠定了基础。
