Identification of six endogenous gibberellins in spinach shoots.
نویسندگان
چکیده
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): GA(53), GA(44), GA(19), GA(17), GA(20), and GA(29). The major GAs were GA(17), GA(19), and GA(20), 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: GA(53) --> GA(44) --> GA(19) --> GA(17) --> GA(20) --> GA(29).
منابع مشابه
Comparison of the levels of six endogenous gibberellins in roots and shoots of spinach in relation to photoperiod.
This communication describes the distribution of gibberellins (GAs) in roots and shoots of spinach in relation to photoperiod. From previous work (Metzger, Zeevaart 1980 Plant Physiol 65: 623-626) shoots were known to contain GA(53), GA(44), GA(19), GA(17), GA(20), and GA(29). We now show by combined gas chromatography-mass spectrometry that roots contain GA(44), GA(19), and GA(29). Trace amoun...
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ورودعنوان ژورنال:
- Plant physiology
دوره 65 4 شماره
صفحات -
تاریخ انتشار 1980