Qualitative and Quantitative Analysis of Endogenous Gibberellins in Onion Plants and Their Effects on Bulb Development
| Autor: | Noboru Murofushi, Hiroh Shibaoka, Tomonobu Toyomasu, Hisakazu Yamane, Hideaki Nojiri |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
photoperiodism
Liliaceae fungi Organic Chemistry food and beverages Endogeny General Medicine Biology biology.organism_classification Applied Microbiology and Biotechnology Biochemistry Analytical Chemistry Bulb chemistry.chemical_compound Biosynthesis chemistry Botany Allium Gibberellin Molecular Biology Quantitative analysis (chemistry) Biotechnology |
| Zdroj: | Bioscience, Biotechnology, and Biochemistry. 57:2031-2035 |
| ISSN: | 1347-6947 0916-8451 |
| DOI: | 10.1271/bbb.57.2031 |
| Popis: | Evidence has been reported that bulb development in onion plants (Allium cepa L.) is controlled by endogenous bulbing and anti-bulbing hormones, and that gibberellin (GA) is a candidate for anti-bulbing hormone (ABH). In this study, we identified a series of C-13-H GAs (GA12, GA15, GA24, GA9, GA4, GA34, and 3-epi-GA4) and a series of C-13-OH GAs (GA44, GA20, GA1 and GA8) from the leaf sheaths including the lower part of leaf blades of onion plants (cv. Senshu-Chuko). These results suggested that two independent GA biosynthetic pathways, the early-non-hydroxylation pathway to GA4 (active GA) and early-13-hydroxylation pathway to GA1 (active GA), exist in onion plants. It was also suggested that GA4 and GA1 have almost the same ability to inhibit bulb development in onion plants induced by treatment with an inhibitor of GA biosynthesis, uniconazole-P. The endogenous levels of GA1 and GA4, and their direct precursors, GA20 and GA9, in leaf blades, leaf sheaths, and roots of 4-week-old bulbing and non-bulbing... |
| Databáze: | OpenAIRE |
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