ArticleThe New phytologist2024
CHUP1 restricts chloroplast movement and effector-triggered immunity in epidermal cells.
Article in The New phytologist, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Plasmodesmata display dynamic local and systemic redox responses during plant stress.The Plant cell · 2026Article
- Genomic Insights into Winter Wheat Breeding for Severely Cold Climates.International journal of molecular sciences · 2026Article
- Photosystem Perturbation by Staygreen Mutations Confers Allele-Dependent Defences Against Infections of Pathogens With Different Lifestyles and Abiotic Stress Tolerance.Plant, cell & environment · 2026Article
- Stromules: An Incident or Formalized Pathway for Molecules Transfer Between Organelles?International journal of molecular sciences · 2025Review
- Let's keep in touch: How membrane contact sites drive immune responses.The Plant cell · 2025Article
- Mitochondrial ROS trigger interorganellular signaling and prime ER processes to establish enhanced plant immunity.Science advances · 2025Article
- Recovery of the cortical chloroplast layer in the green algaFrontiers in plant science · 2025Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
Chloroplast Unusual Positioning 1 (CHUP1) plays an important role in the chloroplast avoidance and accumulation responses in mesophyll cells. In epidermal cells, prior research showed silencing CHUP1-induced chloroplast stromules and amplified effector-triggered immunity (ETI); however, the underlying mechanisms remain largely unknown. CHUP1 has a dual function in anchoring chloroplasts and recruiting chloroplast-associated actin (cp-actin) filaments for blue light-induced movement. To determine which function is critical for ETI, we developed an approach to quantify chloroplast anchoring and movement in epidermal cells. Our data show that silencing NbCHUP1 in Nicotiana benthamiana plants increased epidermal chloroplast de-anchoring and basal movement but did not fully disrupt blue light-induced chloroplast movement. Silencing NbCHUP1 auto-activated epidermal chloroplast defense (ECD) responses including stromule formation, perinuclear chloroplast clustering, the epidermal chloroplast response (ECR), and the chloroplast reactive oxygen species (ROS), hydrogen peroxide (H
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