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Reposted by Federica Locci

Giuliana Hessler @giurassicpark.bsky.social · 05/10/2026

🌱New preprint 🎉 I am happy to share this last work of my PhD research! We uncover a novel role of cysteine protease RD19 in immunity. RD19 regulates RBOHD-generated ROS and is required for induced resistance responses. www.biorxiv.org/content/10.6... More details in the thread below! 🧵

biorxiv.org

Arabidopsis cysteine protease RD19 limits RBOHD-generated ROS production in pattern triggered immunity

Plants perceive pathogenic threats through receptors localized at the plasma membrane and inside cells to initiate pattern-triggered immunity (PTI) and effector-triggered immunity (ETI), respectively....

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Reposted by Federica Locci

parkergroup.bsky.social @parkergroup.bsky.social · 28/09/2026

Our interdisciplinary collaboration with Stephanie Kath-Schorr group characterizes Thio-pRib-AMP, an enhanced derivative of a natural plant nucleotide immune second messenger. Thio-pRib-AMP leaf spray increases plant disease resistance. Check it out: doi.org/10.21203/rs....

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Reposted by Federica Locci

Ohad Roth @ohadroth.bsky.social · 16/06/2026

How do pathogens disarm plant immunity? We discovered a widespread strategy used by plant bacterial pathogens: they directly cleave a conserved immune signaling molecule produced by plant immune receptors. www.biorxiv.org/content/10.6...

biorxiv.org

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Reposted by Federica Locci

parkergroup.bsky.social @parkergroup.bsky.social · 09/06/2026

TIRs are key regulators of plant immunity, but the role of conserved TIR-only proteins has remained unclear. Here, we compare TIR-only proteins from Arabidopsis and barley and show that they share a conserved role in plant immunity. www.biorxiv.org/content/10.6...

biorxiv.org

Conserved TIR-only proteins drive transcriptional defense and basal immunity in dicot and monocot plants

Toll/interleukin-1/resistance (TIR) domain NADase enzymes signal in plant immunity by producing ribosylated nucleotide second messengers which activate EDS1 dimer-helper NLR pathways to restrict patho...

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Reposted by Federica Locci

parkergroup.bsky.social @parkergroup.bsky.social · 17/07/2025

Parker Group alumni, from the early 2000s to 2025, the best folks! Grateful for everyone who helped shape the science over the years #2025ISMPMI Thanks @federicalocci.bsky.social for taking the picture

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