Abstract
Analysis of highly purified extracts from spinach shoots by combined gas chromatography-mass spectrometry has demonstrated the presence of six 13-C-hydroxylated gibberellins (GAs): GA53, GA44, GA19, GA17, GA20, and GA29. The major GAs were GA17, GA19, and GA20, whereas the other three GAs occurred in trace amounts. Structural considerations suggest that the six GAs identified in spinach are related in the following metabolic sequence: GA53 → GA44 → GA19 → GA17 → GA20 → GA29.
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Selected References
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