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人们正研究了一些天人菊(Gaillardiapulchclla Foug.)的化学成分,发现其中的倍半萜烯内酯随采集地变化,如采自佛罗里达州和北卡罗来纳州天人菊的地上部分和一些栽培种株中的倍半萜烯内酯是假愈创内酯(pseudoguaianolide),其中主要的一种是菊素(pulchellin);而采自新墨西哥州和亚利桑那州的同种植物的主要成分是桉树油烯内酯(endesmanolide)。作者检测了匈牙利栽培观赏植物天人菊的化学成分,发现在其个体发育全过程中,
People are studying the chemical composition of Gaillardia pulchclla Foug. The sesquiterpene lactones are found to vary with the place of collection, such as the aerial parts of some of the cultivars from Florida and North Carolina. The sesquiterpene lactone in the strain is pseudoguaianolide, and the main one is pulchellin; the main component of the same plant collected from New Mexico and Arizona is eucalyptus. Endosmanolide. The authors examined the chemical composition of Hungarian cultivated ornamental plant Blatta ascendens and found that in the whole process of their individual development,