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Receptor of Salicylic Acid reported

Receptor of Salicylic Acid reported

In an article entitled, “NPR3 and NPR4 are receptors for the immune signal salicylic acid in plants” published on the 14th June issue of Nature (486:228-232), Zheng Qing Fu and his 10 other associates reported about the hitherto undiscovered two pathogenesis-related NPR3 and NPR4 as SA receptors. They bind SA with different affinities. The complex molecule bound to SA functions as a receptor and protect the plants from further pathogen attack. The investigators have further shown that NPR3 and NPR4 function as “adaptors of the Cullin 3 ubiquitin E3 ligase to mediate NPR1 degradation”. Their study reveals the mechanism of SA perception in determining cell death and survival in response to pathogen attack.

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