Li Mengru, Gao Huaina, Zhou Minmin, Zhang Yali, Jiang Han, Li Yuanyuan
State Key Laboratory of Wheat Improvement, Shandong Collaborative Innovation, Center of Fruit & Vegetable Quality and Efficient Production, National Research, Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian 271018, China.
Int J Mol Sci. 2025 Mar 31;26(7):3245. doi: 10.3390/ijms26073245.
As sessile organisms, plants are exposed to a variety of environmental stresses caused by biotic and abiotic factors during their life cycle; as a result, plants have evolved complex defense mechanisms to cope with these stresses, among which the mitogen-activated protein kinase cascade signaling pathway is particularly critical. This study focused on , a specific mitogen-activated protein kinase gene in , to illuminate its functions in stress responses. was successfully cloned from apple and shown to respond to various stressors, including drought, salt, and abscisic acid. Overexpressing in apple calli resulted in enhanced resistance to drought, salt, and Ectopic expression of in enhanced the resistance to drought, salt, and DC3000. These results indicated that in apples is a traditional mitogen-activated protein kinase, which plays an important role in both biotic and abiotic stresses.
作为固着生物，植物在其生命周期中会受到由生物和非生物因素引起的各种环境胁迫；因此，植物进化出了复杂的防御机制来应对这些胁迫，其中丝裂原活化蛋白激酶级联信号通路尤为关键。本研究聚焦于苹果中的一个特定丝裂原活化蛋白激酶基因，以阐明其在胁迫响应中的功能。该基因已成功从苹果中克隆出来，并显示对包括干旱、盐和脱落酸在内的各种胁迫因子有响应。在苹果愈伤组织中过表达该基因导致对干旱、盐和的抗性增强。在中异位表达该基因增强了对干旱、盐和DC3000的抗性。这些结果表明，苹果中的该基因是一种传统的丝裂原活化蛋白激酶，在生物和非生物胁迫中均起重要作用。
