ArticleJournal of experimental botany2014
The F-box protein COI1 functions upstream of MYB305 to regulate primary carbohydrate metabolism in tobacco (Nicotiana tabacum L. cv. TN90).
Article in Journal of experimental botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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33 citing papers in PubMed, 65 citations in OpenAlex.
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- Genome-wide insights into the nomenclature, evolution and expression of tobacco TIFY/JAZ genes.Planta · 2025Article
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- Insights of auxin signaling F-box genes in wheat (Triticum aestivum L.) and their dynamic expression during the leaf rust infection.Protoplasma · 2023Article
- Co-expression network analyses of anthocyanin biosynthesis genes in Ruellia (Wild Petunias; Acanthaceae).BMC ecology and evolution · 2022Article
- NtMYB305a binds to the jasmonate-responsive GAG region of NtPMT1a promoter to regulate nicotine biosynthesis.Plant physiology · 2022Article
- NtbHLH49, a jasmonate-regulated transcription factor, negatively regulates tobacco responses toFrontiers in plant science · 2022Article
- bHLH Transcription Factor NtMYC2a Regulates Carbohydrate Metabolism during the Pollen Development of Tobacco (Plants (Basel, Switzerland) · 2021Article
- An updated census of the maize TIFY family.PloS one · 2021Article
- Identification, evolution and expression analyses of whole genome-wide TLP gene family in Brassica napus.BMC genomics · 2020Article
- Review
- QTL Mapping Using a High-Density Genetic Map to Identify Candidate Genes Associated With Metribuzin Tolerance in Hexaploid Wheat (Frontiers in plant science · 2020Article
- Transcriptome analysis and metabolic profiling reveal the key role of carotenoids in the petal coloration ofHorticulture research · 2020Article
- Overexpression of OsMYB305 in Rice Enhances the Nitrogen Uptake Under Low-Nitrogen Condition.Frontiers in plant science · 2020Article
- Jasmonates-Mediated Rewiring of Central Metabolism Regulates Adaptive Responses.Plant & cell physiology · 2019Article
- Waterlogging tolerance rendered by oxylipin-mediated metabolic reprogramming in Arabidopsis.Journal of experimental botany · 2019Article
- An integrated transcriptomics and metabolomics analysis of thePlant direct · 2019Article
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Jasmonate (JA) plays an important role in regulating plant male fertility and secondary metabolism, but its role in regulating primary metabolism remains unclear. The F-box protein CORONATINE INSENSITIVE 1 (COI1) is a critical component of the JA receptor, and mediates JA-signalling by targeting JASMONATE ZIM-domain (JAZ) proteins for proteasomal degradation in response to JA perception. Here, we found that RNA interference-mediated knockdown of NtCOI1 in tobacco (Nicotiana tabacum L. cv. TN90) recapitulated many previously observed phenotypes in coi1 mutants, including male sterility, JA insensitivity, and loss of floral anthocyanin production. It also affected starch metabolism in the pollen, anther wall, and floral nectary, leading to pollen abortion and loss of floral nectar. Transcript levels of genes encoding starch metabolism enzymes were significantly altered in the pollen, anther wall, and floral nectary of NtCOI1-silenced tobacco. Changes in leaf primary metabolism were also observed in the NtCOI1-silenced tobacco. The expression of NtMYB305, an orthologue of MYB305 previously identified as a flavonoid metabolic regulator in Antirrhinum majus flowers and as a floral-nectar regulator mediating starch synthesis in ornamental tobacco, was extremely downregulated in NtCOI1-silenced tobacco. These findings suggest that NtCOI1 functions upstream of NtMYB305 and plays a fundamental role in coordinating plant primary carbohydrate metabolism and correlative physiological processes.
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