Tang Shaokang, Ling Qin, Ma Qiqi, Cheng Yuqing, Mei Peng, Miao Yuan, Pan Yuanzhi, Jia Yin, Wu Mengxi, Yong Xue, Jiang Beibei
College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China.
College of Forestry, Sichuan Agricultural University, Chengdu 611130, China.
Plants (Basel). 2024 Aug 29;13(17):2416. doi: 10.3390/plants13172416.
As an important part of heat shock response module, heat shock proteins (HSP) play an important role in plant defense response against heat stress; however, the involvement of the majority of the HSP family members against other abiotic stresses remains poorly understood. In the present study, was identified and its function against abiotic stress was analyzed. The expression level of was significantly induced by heat. Heterologous transgenes of showed that can increase the activity of catalase, peroxidase, superoxide dismutase to removes excess reactive oxygen species (ROS), maintain the stability of the membrane structure, and regulate genes related to antioxidant enzymes and defense under abiotic stress. In addition, could be regulated by exogenous abscisic acid and melatonin, and the related hormone synthesis genes of transgenic plants were significantly up-regulated under heat stress. Taken together, our results revealed that LrHSP17.2 is involved in regulating abiotic stress responses by regulating ROS scavenging and stress-related genes in .
作为热休克反应模块的重要组成部分，热休克蛋白（HSP）在植物抵御热胁迫的防御反应中发挥重要作用；然而，大多数HSP家族成员在应对其他非生物胁迫中的作用仍知之甚少。在本研究中，对[具体蛋白名称缺失]进行了鉴定，并分析了其对非生物胁迫的功能。[具体蛋白名称缺失]的表达水平受热显著诱导。[具体蛋白名称缺失]的异源转基因表明，[具体蛋白名称缺失]可以提高过氧化氢酶、过氧化物酶、超氧化物歧化酶的活性，以清除过量的活性氧（ROS），维持膜结构的稳定性，并在非生物胁迫下调节与抗氧化酶和防御相关的基因。此外，[具体蛋白名称缺失]可受外源脱落酸和褪黑素调控，且转基因植物的相关激素合成基因在热胁迫下显著上调。综上所述，我们的结果表明LrHSP17.2通过调节[具体植物名称缺失]中的ROS清除和胁迫相关基因参与调控非生物胁迫反应。
