Melatonin: occurrence and daily rhythm in Chenopodium rubrum

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• 作者：Kol&aacute ; r ; Jan ; Mach&aacute ; ckov&aacute ; Ivana ; Eder ; Josef ; Prinsen ; Els ; Dongen ; Walter Van ; et. al.
• 关键词：Chenopodium rubrum ; Chenopodiaceae ; goosefoot ; rhythmicity ; indoles ; melatonin
• 刊名：Phytochemistry
• 出版年：1997
• 出版时间：April, 1997
• 年：1997
• 卷：44
• 期：8
• 页码：1407-1413
• 全文大小：420 K

文摘

The occurrence of melatonin (5-methoxy-N-acetyltryptamine), a common animal hormone, in extracts of the above-ground parts of 15-day-old plants of Chenopodium rubrum was confirmed by liquid chromatography/tandem mass spectrometry. Using both this method and radioimmunoassay, changes in melatonin content during a 12 hr light/12 hr dark cycle were demonstrated. The melatonin concentration remained low or undetectable during the light period and increased during the darkness reaching a maximum at hours 4-6 of the dark period before rapidly decreasing. Both the nocturnal increase and the range of concentration are similar to those known in animals.