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The DOI matches its Crossref record; 77 of the 77 references it cites were found in a registry or an index.

Negative regulation of ABA signaling by WRKY33 is critical for Arabidopsis immunity towards Botrytis cinerea 2100

Open access
Liu, Shouan, Kracher, Barbara, Ziegler, Jörg, Birkenbihl, Rainer P, Somssich, Imre E·2015·eLife

Abstract

The Arabidopsis mutant wrky33 is highly susceptible to Botrytis cinerea. We identified >1680 Botrytis-induced WRKY33 binding sites associated with 1576 Arabidopsis genes. Transcriptional profiling defined 318 functional direct target genes at 14 hr post inoculation. Comparative analyses revealed that WRKY33 possesses dual functionality acting either as a repressor or as an activator in a promoter-context dependent manner. We confirmed known WRKY33 targets involved in hormone signaling and phytoalexin biosynthesis, but also uncovered a novel negative role of abscisic acid (ABA) in resistance towards B. cinerea 2100. The ABA biosynthesis genes NCED3 and NCED5 were identified as direct targets required for WRKY33-mediated resistance. Loss-of-WRKY33 function resulted in elevated ABA levels and genetic studies confirmed that WRKY33 acts upstream of NCED3/NCED5 to negatively regulate ABA biosynthesis. This study provides the first detailed view of the genome-wide contribution of a specific plant transcription factor in modulating the transcriptional network associated with plant immunity.

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Metadata

Authors
Liu, S., Kracher, B., Ziegler, J., Birkenbihl, R. P., & Somssich, I. E.
Venue
eLife
Published
2015-06-15
Volume
4
Pages
e07295-e07295
ISSN
2050-084X (ISSN-L)
OpenAlex
W1958695491
Cited by
292
References
77
FWCI
22.60
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Negative regulation of ABA signaling by WRKY33 is critical for Arabidopsis immunity towards Botrytis cinerea 2100. https://app.cochat.ai/papers/10.7554/elife.07295
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Liu, S., Kracher, B., Ziegler, J., Birkenbihl, R. P., & Somssich, I. E. (2015). Negative regulation of ABA signaling by WRKY33 is critical for Arabidopsis immunity towards Botrytis cinerea 2100. eLife. https://doi.org/10.7554/elife.07295

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