Hu Guangyan, Zhao Zhongjuan, Wei Yanli, Hu Jindong, Zhou Yi, Li Jishun, Yang Hetong
Shandong Province Key Laboratory of Applied Microbiology, Ecology Institute of Shandong Academy of Sciences, Qilu University of Technology, Jinan 250103, China.
China-Australia Joint Laboratory for Soil Ecological Health and Remediation, Ecology Institute of Shandong Academy of Sciences, Qilu University of Technology, Jinan 250103, China.
J Fungi (Basel). 2025 Mar 26;11(4):253. doi: 10.3390/jof11040253.
Salt stress poses a major threat to plant growth, and breeding for salt-tolerant varieties is not always successful to ameliorate this threat. In the present experiment, the effect of 22043 inoculation on the growth of salt-stressed tomatoes and the mechanisms by which it improves salt tolerance were investigated. It was observed that tomato plants treated with 22043 spore suspension under salt tress (50 and 100 mM NaCl) consistently exhibited higher seeds germination, seedling survival rate, plant height, and chlorophyll content, but lower malondialdehyde and proline contents than the plants treated without the . 22043 effectively improved the stress resistance of tomato through regulating the transcriptional levels of reactive oxygen species (ROS) scavenging enzyme gene expression to modulate the activity of ROS scavenging enzymes and the expression of the genes related to transporter and aquaporin to maintain the balance of cell Na. In conclusion, 22043 can enhance tomato seedlings' salt tolerance by activating the antioxidant system and regulating the expression of stress-resistant genes.
盐胁迫对植物生长构成重大威胁，培育耐盐品种并不总是能成功缓解这种威胁。在本实验中，研究了接种22043对盐胁迫番茄生长的影响及其提高耐盐性的机制。观察到，在盐胁迫（50和100 mM NaCl）下用22043孢子悬浮液处理的番茄植株，与未处理的植株相比，始终表现出更高的种子发芽率、幼苗存活率、株高和叶绿素含量，但丙二醛和脯氨酸含量较低。22043通过调节活性氧（ROS）清除酶基因表达的转录水平来调节ROS清除酶的活性，以及调节与转运蛋白和水通道蛋白相关基因的表达来维持细胞Na平衡，从而有效提高了番茄的抗逆性。总之，22043可通过激活抗氧化系统和调节抗逆基因的表达来增强番茄幼苗的耐盐性。
