ArticleProceedings of the National Academy of Sciences of the United States of America2001
Transcription factor RF2a alters expression of the rice tungro bacilliform virus promoter in transgenic tobacco plants.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 33 citations in OpenAlex.
- Long terminal repeats (LTR) and transcription factors regulate PHRE1 and PHRE2 activity in Moso bamboo under heat stress.BMC plant biology · 2021Article
- 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
- The bZIP Protein VIP1 Is Involved in Touch Responses in Arabidopsis Roots.Plant physiology · 2016Article
- A comprehensive quantitative phosphoproteome analysis of rice in response to bacterial blight.BMC plant biology · 2015Article
- The large intergenic region of Rice tungro bacilliform virus evolved differentially among geographically distinguished isolates.Virus genes · 2012Article
- Negative regulation of the RTBV promoter by designed zinc finger proteins.Plant molecular biology · 2010Article
- Transgenic rice plants that overexpress transcription factors RF2a and RF2b are tolerant to rice tungro virus replication and disease.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- Downstream promoter sequence of an Indian isolate of Rice tungro bacilliform virus alters tissue-specific expression in host rice and acts differentially in heterologous system.Plant molecular biology · 2007Article
- Role of the C-terminal domains of rice (Oryza sativa L.) bZIP proteins RF2a and RF2b in regulating transcription.The Biochemical journal · 2007Article
- RF2b, a rice bZIP transcription activator, interacts with RF2a and is involved in symptom development of rice tungro disease.Proceedings of the National Academy of Sciences of the United States of America · 2004Article
- Rice TATA binding protein interacts functionally with transcription factor IIB and the RF2a bZIP transcriptional activator in an enhanced plant in vitro transcription system.The Plant cell · 2002Article
- Endogenous viral sequences and their potential contribution to heritable virus resistance in plants.The EMBO journal · 2002Article
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The promoter from rice tungro bacilliform badnavirus (RTBV) is expressed only in phloem tissues in transgenic rice plants. RF2a, a b-Zip protein from rice, is known to bind to the Box II cis element near the TATA box of the promoter. Here, we report that the full-length RTBV promoter and a truncated fragment E of the promoter, comprising nucleotides -164 to +45, result in phloem-specific expression of beta-glucuronidase (GUS) reporter genes in transgenic tobacco plants. When a fusion gene comprising the cauliflower mosaic virus 35S promoter and RF2a cDNA was coexpressed with the GUS reporter genes, GUS activity was increased by 2-20-fold. The increase in GUS activity was positively correlated with the amount of RF2a, and the expression pattern of the RTBV promoter was altered from phloem-specific to constitutive. Constitutive expression of RF2a did not induce morphological changes in the transgenic plants. In contrast, constitutive overexpression of the b-ZIP domain of RF2a had a strong effect on the development of transgenic plants. These studies suggest that expression of the b-Zip domain can interfere with the function of homologues of RF2a that regulate development of tobacco plants.
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