How Plants Can Tell Friend From Foe | Phys.org

The plant’s immune system can recognize whether a piece of RNA is an invader or not based on whether the RNA has a threaded bead-like structure at the end, say University of Tokyo researchers. Their finding provides an answer to the quarter-century-old question of why RNAs belonging to the plant escape its self-defense mechanism, paving the way for future biotechnological techniques to modify crops.

Our immune system protects us from diseases and infections by fighting off viruses and other foreign substances. Plants also have a mechanism that fends off invaders, called post-transcriptional gene silencing, which attacks foreign RNA by distinguishing them from non-foreign ones, but does not fight against RNAs originating in the plant…[READ MORE]

Source: How plants can tell friend from foe

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