Perception of Salicylic Acid in Physcomitrella patens
Autor: | Yuelin Zhang, Yujun Peng, Tongjun Sun |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
0106 biological sciences
0301 basic medicine Sequence analysis salicylic acid Mutant Plant Science lcsh:Plant culture Physcomitrella patens 01 natural sciences 03 medical and health sciences chemistry.chemical_compound Arabidopsis lcsh:SB1-1110 NPR3 NPR4 NPR1 Gene Genetics biology fungi biology.organism_classification Phenotype 030104 developmental biology chemistry plant immunity SA receptor Salicylic acid 010606 plant biology & botany |
Zdroj: | Frontiers in Plant Science, Vol 8 (2017) |
Popis: | Salicylic acid (SA) is a key signaling molecule in plant immunity. Two types of SA receptors, NPR1 and NPR3/NPR4, were reported to be involved in the perception of SA in Arabidopsis. SA is also synthesized in the non-vascular moss Physcomitrella patens following pathogen infection. Sequence analysis revealed that there is only one NPR1/NPR3/NPR4-like protein in P. patens. This agrees with the phylogenetic study that showed the divergence of NPR1 and NPR3/NPR4 from the same ancestor during the evolution of higher plants. Intriguingly, expression of the P. patens NPR1/NPR3/NPR4-like gene in Arabidopsis does not complement the constitutive defense phenotype of the npr3 npr4 double mutant, but can partially rescue the mutant phenotypes of npr1-1, suggesting that it functions as an NPR1-like positive regulator of SA-mediated immunity and P. patens does not have an SA receptor functioning similarly as NPR3/NPR4. Future characterization of the P. patens NPR1-like protein and analysis of its functions through knockout and biochemical approaches will help us better understand how SA is perceived and what its functions are in P. patens. |
Databáze: | OpenAIRE |
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