拟南芥PSRP2调控干旱胁迫研究

Plant stress not only affects the growth and development of plants, but also poses a great threat to crop yield. In previous laboratory studies, it was found that FOF2 can participate in drought stress in plants, but the mechanism of FOF2 regulation of drought stress is still unclear. In this study, the interaction protein PSRP2 of FOF2 was screened by IP mass spectrometry. The expression of PSRP2 decreased after drought treatment. The psrp2 mutant had a drought-tolerant phenotype, while the overexpressing lines of PSRP2 were sensitive to drought stress, indicating that PSRP2 played a negative regulatory role in the response of plantsArabidopsis thaliana PSRP2 regulates drought stress to drought stress. The results of transcriptome sequencing and real-time PCR analysis showed that PSRP2 and FOF2 jointly regulated the expression of downstream abiotic stress-related genes. These results preliminarily suggest that PSRP2 and FOF regulate drought stress response in the same pathway.