OsPFA-DSP2 Encodes a Functional Tyrosine-Specific Phosphatase, and Negatively Regulates the Responses to Xanthomonas Oryzae pv. Oryzae in Overexpressing Rice Plants
| Autor: | Wende Yan, Hanjie He, Huafeng Deng, Meng Li, Qiang He, Wenkai Sun |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine MAPK/ERK pathway biology Phosphatase food and beverages Plant Science biology.organism_classification 01 natural sciences Cell biology 03 medical and health sciences 030104 developmental biology Xanthomonas oryzae Xanthomonas oryzae pv. oryzae Genetics Magnaporthe grisea Tyrosine Signal transduction Protein kinase A 010606 plant biology & botany |
| Zdroj: | Tropical Plant Biology. 13:321-330 |
| ISSN: | 1935-9764 1935-9756 |
| Popis: | Atypical dual-specific phosphatases (PFA-DSP) is a kind of special phosphatase in plants, and play key roles in physiological processes. OsPFA-DSP2 is a member of PFA-DSP family, and negatively regulates Magnaporthe grisea responses in when overexpressed in rice. Whereas, their activity and function response to bacterial pathogen stress are still unknown. The results showed that OsPFA-DSP2 was a tyrosine-specific phosphatase, and its phosphatase activity was regulated by redox condition. The overexpressing OX13/21 lines were sensitive to Xanthomonas oryzae pv. Oryzae (Xoo) and enhanced the expression levels of OsCEBiP in leaves, but showed little difference on the H2O2 production compared with control. Interestingly, OsPFA-DSP2 physically interacted with OsMAPK9 in vitro. These findings indicated that OsPFA-DSP2 was a tyrosine-specific phosphatase that negatively regulates Xoo response in overexpressing rice lines, which may execute through the mitogen-activated protein kinase (MAPK) signaling pathway. |
| Databáze: | OpenAIRE |
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