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Pattern Recognition Receptor (PRR) UPSC NOTE


  • Pattern Recognition Receptors (PRRs) are a crucial part of the immune system in plants and animals.

  • They are specialized proteins that play a fundamental role in detecting various molecular patterns associated with pathogens (such as bacteria, viruses, and fungi) or damage in the environment.

  • PRRs are present on the surface of cells or within cells and help the immune system recognize "pathogen-associated molecular patterns" (PAMPs) that are unique to microorganisms.

  • When PRRs recognize PAMPs, they trigger a series of immune responses to defend against the invading pathogens or respond to environmental stress.

  • In plants, PRRs help initiate the defense responses against potential threats like infections, pests, and diseases.

  • Activation of PRRs leads to the activation of immune signaling pathways and the production of defense molecules to prevent or limit the spread of pathogens.

Why in News

  • A genetic screening was conducted on wild potatoes and other Solanum species.

  • The screening identified a new plant cell surface pattern recognition receptor (PRR) named PERU.

  • PERU plays a role in the immune response to Phytophthora infestans, a pathogen responsible for the Great Irish Famine in the 1840s.

  • This discovery has the potential to enhance crop resilience and improve plant immunity.

  • Pattern recognition receptors (PRRs) and intracellular immune receptors work together to grant plants immunity against microbial infections.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Pattern Recognition Receptor (PRR) UPSC NOTE
Pattern Recognition Receptor (PRR) UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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