ArticleThe Plant cell2011
Arabidopsis sigma factor binding proteins are activators of the WRKY33 transcription factor in plant defense.
Article in The Plant cell, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 170 papers, 1 of them a synthesis that pooled it.
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Who cites it
170 citing papers in PubMed, 1 synthesis or guideline pooled it, 345 citations in OpenAlex.
- Passion fruit (Frontiers in nutrition · 2024Pooled it
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- SIB1-SEC23A undergo ER to chloroplast relocalization to mediate immunity in Arabidopsis thaliana.Journal of integrative plant biology · 2026Article
- The tomato cytoplasmic receptor-like kinase TPK09 mediates resistance to Botrytis cinerea and tolerance to light-induced stress.Plant physiology · 2026Article
- Heterologous Expression of the MelonPlants (Basel, Switzerland) · 2026Article
- Morphological and molecular identification of Fusarium wilt resistance in tomato cultivars mediated by defense gene response.Scientific reports · 2026Article
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- Biogenic retrograde signaling via GUN1 ensures thermotolerant chloroplast biogenesis during seedling establishment in Arabidopsis thaliana.Journal of integrative plant biology · 2026Article
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- Antibacterial activity and metabolomic profile of Zanthoxylum caribaeum Lam. aqueous extract against multidrug-resistant Staphylococcus aureus.Scientific reports · 2025Article
- Inorganic carbon levels regulate growth via SigC signaling cascade in cyanobacteria.The New phytologist · 2025Article
- NaLRR-RK4 mediates MAPK signaling to enhance plant defense against Alternaria alternata in Nicotiana attenuata.Scientific reports · 2025Article
- Transcript profiling of plastid ferrochelatase two mutants reveals that chloroplast singlet oxygen signals lead to global changes in RNA profiles and are mediated by Plant U-Box 4.BMC plant biology · 2025Article
- Genome-Wide Identification, Characterization, and Expression Analysis ofPlants (Basel, Switzerland) · 2025Article
- Overexpression of plasma membrane SUT1 in poplar alters lateral sucrose partitioning in stem and promotes leaf necrosis.Plant direct · 2025Article
- MdVQ37 Negatively Regulates Apple Resistance to Valsa Canker via SA-Dependent and SA-Independent Pathways.Molecular plant pathology · 2025Article
- SlVQ15 recruits SlWRKY30IIc to link with jasmonate pathway in regulating tomato defence against root-knot nematodes.Plant biotechnology journal · 2025Article
- Genome-wide identification of the GLK transcription factor family in melon and its expression analysis under biotic and abiotic stresses.Frontiers in plant science · 2025Article
110 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Necrotrophic pathogens are important plant pathogens that cause many devastating plant diseases. Despite their impact, our understanding of the plant defense response to necrotrophic pathogens is limited. The WRKY33 transcription factor is important for plant resistance to necrotrophic pathogens; therefore, elucidation of its functions will enhance our understanding of plant immunity to necrotrophic pathogens. Here, we report the identification of two WRKY33-interacting proteins, nuclear-encoded SIGMA FACTOR BINDING PROTEIN1 (SIB1) and SIB2, which also interact with plastid-encoded plastid RNA polymerase SIGMA FACTOR1. Both SIB1 and SIB2 contain an N-terminal chloroplast targeting signal and a putative nuclear localization signal, suggesting that they are dual targeted. Bimolecular fluorescence complementation indicates that WRKY33 interacts with SIBs in the nucleus of plant cells. Both SIB1 and SIB2 contain a short VQ motif that is important for interaction with WRKY33. The two VQ motif-containing proteins recognize the C-terminal WRKY domain and stimulate the DNA binding activity of WRKY33. Like WRKY33, both SIB1 and SIB2 are rapidly and strongly induced by the necrotrophic pathogen Botrytis cinerea. Resistance to B. cinerea is compromised in the sib1 and sib2 mutants but enhanced in SIB1-overexpressing transgenic plants. These results suggest that dual-targeted SIB1 and SIB2 function as activators of WRKY33 in plant defense against necrotrophic pathogens.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.