ArticlePlant molecular biology2006
Chromatin immunoprecipitation analysis of the tobacco PR-1a- and the truncated CaMV 35S promoter reveals differences in salicylic acid-dependent TGA factor binding and histone acetylation.
Article in Plant molecular biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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19 citing papers in PubMed, 53 citations in OpenAlex.
- Unveiling the TGA gene family in Qingke (Hordeum vulgare L. var. nudum) and the role of HvnTGA2 in host-pathogen interaction.BMC plant biology · 2026Article
- Article
- Flagellin, a plant-defense-activating protein identified from Xanthomonas axonopodis pv. Dieffenbachiae invokes defense response in tobacco.BMC microbiology · 2023Article
- Epigenetic stress memory: A new approach to study cold and heat stress responses in plants.Frontiers in plant science · 2022Review
- Unravelling the Role of Epigenetic Modifications in Development and Reproduction of Angiosperms: A Critical Appraisal.Frontiers in genetics · 2022Review
- Expression Analysis of MaTGA8 Transcription Factor in Banana and Its Defence Functional Analysis by Overexpression in Arabidopsis.International journal of molecular sciences · 2021Article
- Salicylic acid treatment and expression of an RNA-dependent RNA polymerase 1 transgene inhibit lethal symptoms and meristem invasion during tobacco mosaic virus infection in Nicotiana benthamiana.BMC plant biology · 2016Article
- Global nucleosome positioning regulates salicylic acid mediated transcription in Arabidopsis thaliana.BMC plant biology · 2015Article
- Chromatin versus pathogens: the function of epigenetics in plant immunity.Frontiers in plant science · 2015Review
- Epigenetic memory in plants.The EMBO journal · 2014Review
- Stress-induced chromatin changes: a critical view on their heritability.Plant & cell physiology · 2012Review
- Transcription dynamics in plant immunity.The Plant cell · 2011Review
- Cross activity of orthologous WRKY transcription factors in wheat and Arabidopsis.Journal of experimental botany · 2011Article
- Exchanging the as-1-like element of the PR-1 promoter by the as-1 element of the CaMV 35S promoter abolishes salicylic acid responsiveness and regulation by NPR1 and SNI1.Plant signaling & behavior · 2010Article
- Arabidopsis putative deacetylase AtSRT2 regulates basal defense by suppressing PAD4, EDS5 and SID2 expression.Plant & cell physiology · 2010Article
- Early genomic responses to salicylic acid in Arabidopsis.Plant molecular biology · 2009Article
- The Arabidopsis GRAS protein SCL14 interacts with class II TGA transcription factors and is essential for the activation of stress-inducible promoters.The Plant cell · 2008Article
- Histone modifications do not play a major role in salicylate-mediated suppression of jasmonate-induced PDF1.2 gene expression.Communicative & integrative biology · 2008Article
- Transcriptional Control of GlutaredoxinPlant molecular biology reporterArticle
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Salicylic acid (SA) is a plant signalling molecule needed for the induction of defence responses upon attack by a variety of pathogens. Truncation of the Cauliflower Mosaic Virus (CaMV) 35S promoter down to 90 bp has identified activation sequence-1 (as-1) as an autonomous SA-responsive cis element. The as-1-like elements are found in a number of SA-inducible promoters like e.g. the tobacco PR-1a promoter. They are recognized by basic/leucine zipper (bZIP) transcription factors of the TGA family. In tobacco leaves, TGA2.2 is the most abundant TGA factor. TGA2.2 is required for the expression of as-1-containing promoters. Here we unravel clear differences between the "truncated" CaMV 35S and the PR-1a promoter with respect to in vivo TGA binding and histone acetylation. Chromatin immunoprecipitation (ChIP) analysis revealed SA-inducible recruitment of tobacco TGA2.2 as well as SA-inducible histone acetylation at the PR-1a promoter. In contrast, no influence of SA on TGA2.2 binding and histone acetylation was detectable at the "truncated" CaMV 35S promoter. The finding of SA-independent TGA factor binding in the absence of additional flanking regulatory sequences suggests that transcriptional activation is not necessarily mediated by inducible DNA binding of TGA factors. Plants with severely reduced TGA2.2 protein levels also showed SA-induced histone acetylation at the PR-1a promoter indicating that regulatory events independent from TGA2.2 function are initiated at the PR-1a promoter.
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