ArticleProceedings of the National Academy of Sciences of the United States of America2004
RF2b, a rice bZIP transcription activator, interacts with RF2a and is involved in symptom development of rice tungro disease.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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39 citing papers in PubMed, 72 citations in OpenAlex.
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- Identification and promoter analysis of a GA-stimulated transcript 1 gene from Jatropha curcas.Plant cell reports · 2023Article
- Genome-Wide Identification and Functional Analysis ofPlants (Basel, Switzerland) · 2023Article
- The Role of Plant Transcription Factors in the Fight against Plant Viruses.International journal of molecular sciences · 2023Review
- Geographic isolation and environmental heterogeneity contribute to genetic differentiation inEcology and evolution · 2023Article
- Comparative Seeds Storage Transcriptome Analysis ofInternational journal of molecular sciences · 2022Article
- CabZIP23 Integrates in CabZIP63-CaWRKY40 Cascade and Turns CabZIP63 on Mounting Pepper Immunity againstInternational journal of molecular sciences · 2022Article
- Highly efficient hairy root genetic transformation and applications in citrus.Frontiers in plant science · 2022Article
- A genome wide association study to dissect the genetic architecture of agronomic traits in Andean lupin (Frontiers in plant science · 2022Article
- Transcriptome Analysis Revealed GhWOX4 Intercedes Myriad Regulatory Pathways to Modulate Drought Tolerance and Vascular Growth in Cotton.International journal of molecular sciences · 2021Article
- Profiling of H3K4me3 and H3K27me3 and Their Roles in Gene Subfunctionalization in Allotetraploid Cotton.Frontiers in plant science · 2021Article
- Transcriptome analysis of responses in Brachypodium distachyon overexpressing the BdbZIP26 transcription factor.BMC plant biology · 2020Article
- OsbZIP81, A Homologue of Arabidopsis VIP1, May Positively Regulate JA Levels by Directly Targetting the Genes in JA Signaling and Metabolism Pathway in Rice.International journal of molecular sciences · 2019Article
- Proteomic and Phosphoproteomic Analysis in Tobacco Mosaic Virus-Infected Tobacco (Nicotiana tabacum).Biomolecules · 2019Article
- Calcium signalling regulates the functions of the bZIP protein VIP1 in touch responses in Arabidopsis thaliana.Annals of botany · 2018Article
- Functional characterization of the Arabidopsis transcription factor bZIP29 reveals its role in leaf and root development.Journal of experimental botany · 2016Article
- VIP1 is very important/interesting protein 1 regulating touch responses of Arabidopsis.Plant signaling & behavior · 2016Article
- The bZIP Protein VIP1 Is Involved in Touch Responses in Arabidopsis Roots.Plant physiology · 2016Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The phloem-specific promoter of rice tungro bacilliform virus (RTBV) is regulated in part by sequence-specific DNA-binding proteins that bind to Box II, an essential cis element. Previous studies demonstrated that the bZIP protein RF2a is involved in transcriptional regulation of the RTBV promoter. Here we report the identification and functional characterization of a second bZIP protein, RF2b. RF2b, identified by its interaction with RF2a, binds to Box II in in vitro assays as a homodimer and as RF2a/RF2b heterodimers. Like RF2a, RF2b activates the RTBV promoter in transient assays and in transgenic tobacco plants. Both RF2a and RF2b are predominantly expressed in vascular tissues. However, RF2a and RF2b have different DNA-binding affinities to Box II, show distinctive expression patterns in different rice organs, and exhibit different patterns of subcellular localization. Furthermore, transgenic rice plants with reduced levels of RF2b exhibit a disease-like phenotype. We propose that the regulation of phloem-specific expression of the RTBV promoter and potentially the control of RTBV replication are mainly achieved via interactions of the Box II cis element with multiple host factors, including RF2a and RF2b. We also propose that quenching/titration of these and perhaps other transcription factors by RTBV is involved in the development of the symptoms of rice tungro disease.
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