ArticlePlant physiology2005
Gibberellin biosynthesis in developing pumpkin seedlings.
Article in Plant physiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 63 citations in OpenAlex.
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- Comparative transcriptome analysis of molecular mechanisms underlying adventitious root developments in Huangshan Bitter tea (Frontiers in plant science · 2023Article
- miR3633a-International journal of molecular sciences · 2022Article
- Brassinosteroid-regulated bHLH transcription factor CESTA induces the gibberellin 2-oxidase GA2ox7.Plant physiology · 2022Article
- Gibberellins Inhibit Flavonoid Biosynthesis and Promote Nitrogen Metabolism inInternational journal of molecular sciences · 2021Article
- The Current Status of Research on Gibberellin Biosynthesis.Plant & cell physiology · 2020Review
- Molecular Mechanism of Slow Vegetative Growth inGenes · 2020Article
- The Class III Gibberellin 2-Oxidases AtGA2ox9 and AtGA2ox10 Contribute to Cold Stress Tolerance and Fertility.Plant physiology · 2020Article
- Genome-wide identification, characterization and expression profiling of gibberellin metabolism genes in jute.BMC plant biology · 2020Article
- Cucumber gibberellin 1-oxidase/desaturase initiates novel gibberellin catabolic pathways.The Journal of biological chemistry · 2020Article
- Transcriptome Analysis Reveals New Insights into the Bacterial Wilt Resistance Mechanism Mediated by Silicon in Tomato.International journal of molecular sciences · 2019Article
- A Specific Gibberellin 20-Oxidase Dictates the Flowering-Runnering Decision in Diploid Strawberry.The Plant cell · 2017Article
- Abnormal Endogenous Repression of GA Signaling in a Seedless Table Grape Cultivar with High Berry Growth Response to GA Application.Frontiers in plant science · 2017Article
- Genome-wide identification and expression profiling reveal tissue-specific expression and differentially-regulated genes involved in gibberellin metabolism between Williams banana and its dwarf mutant.BMC plant biology · 2016Article
- NO FLOWERING IN SHORT DAY (NFL) is a bHLH transcription factor that promotes flowering specifically under short-day conditions in Arabidopsis.Development (Cambridge, England) · 2016Article
- Article
- De novo transcriptome analysis of Medicago falcata reveals novel insights about the mechanisms underlying abiotic stress-responsive pathway.BMC genomics · 2015Article
- Brassinosteroids Are Master Regulators of Gibberellin Biosynthesis in Arabidopsis.The Plant cell · 2015Article
- A glycine-rich RNA-binding protein affects gibberellin biosynthesis in Arabidopsis.Molecular biology reports · 2014Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A gibberellin (GA) biosynthetic pathway was discovered operating in root tips of 7-d-old pumpkin (Cucurbita maxima) seedlings. Stepwise analysis of GA metabolism in cell-free systems revealed the conversion of GA(12)-aldehyde to bioactive GA(4) and inactive GA(34). Highest levels of endogenous GA(4) and GA(34) were found in hypocotyls and root tips of 3-d-old seedlings. cDNA molecules encoding two GA oxidases, CmGA20ox3 and CmGA3ox3, were isolated from root tips of 7-d-old LAB150978-treated seedlings. Recombinant CmGA20ox3 fusion protein converted GA(12) to GA(9), GA(24) to GA(9), GA(14) to GA(4), and, less efficiently, GA(53) to GA(20), and recombinant CmGA3ox3 protein oxidized GA(9) to GA(4). Transcript profiles were determined for four GA oxidase genes from pumpkin revealing relatively high transcript levels for CmGA7ox in shoot tips and cotyledons, for CmGA20ox3 in shoot tips and hypocotyls, and for CmGA3ox3 in hypocotyls and roots of 3-d-old seedlings. Transcripts of CmGA2ox1 were mainly found in roots of 7-d-old seedlings. In roots of 7-d-old seedlings, transcripts of CmGA7ox, CmGA20ox3, and CmGA3ox3 were localized in the cap and the rhizodermis by in situ hybridization. We conclude that hypocotyls and root tips are important sites of GA biosynthesis in the developing pumpkin seedling.
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