The developmental types of secretory cavities in Citrus remain controversial. The relationship between secretory cavity development and the accumulation of essential oil in fruits of Citrus species is also unknown. In...The developmental types of secretory cavities in Citrus remain controversial. The relationship between secretory cavity development and the accumulation of essential oil in fruits of Citrus species is also unknown. In order to develop better insights into these problems, histological, histochemical, and cytochemical methods were used to investigate secretory cavity development and the accumulation of essential oll at different developmental stages of fruits of Citrus medica L. var. sarcodactylis （Noot.） Swingle. The results indicate that the secretory cavity of the variety seemed to originate from an epidermal cell and a subepldermal cell. These two cells underwent successive divisions, resulting In the formation of two parts： （Ⅰ） a conical cap; and （Ⅱ） a globular gland. The formation of the lumen was schlzolysigenous. Regular changes in the size of vacuoles and the accumulation of essential oil were revealed during the process of secretory cavity development. In addition, when fruits were a light yellow or golden color, the structure of secretory cavities was well developed and the content of essential oil in a single fruit reached a maximum. It would be most appropriate to collect the fruit as a medicinal material at this time.展开更多
目的研究芸香科柑橘属植物川佛手Citrusmedica var. sarcodactylis的化学成分,为该药材的开发利用和质量评价提供依据。方法采用各种色谱技术进行分离纯化,通过理化常数测定和波谱分析进行。结果从川佛手中又分离得到7个化合物,其结构...目的研究芸香科柑橘属植物川佛手Citrusmedica var. sarcodactylis的化学成分,为该药材的开发利用和质量评价提供依据。方法采用各种色谱技术进行分离纯化,通过理化常数测定和波谱分析进行。结果从川佛手中又分离得到7个化合物,其结构鉴定为:5-羟基-7-甲氧基-8-异戊烯基香豆素(sibiricol,Ⅵ)、6-羟基-7-甲氧基香豆素(7-methylesculetin,Ⅶ)、佛手柑内酯(bergapten,Ⅷ)、Sigmasteryl acetate(Ⅸ)、5-甲氧基-糠醛(5-methoxyfurfural,Ⅹ)、柠檬苦素(limonin,Ⅺ)、胡萝卜苷(daucosterol,Ⅻ)。结论化合物Ⅵ、Ⅶ、Ⅸ为从芸香科植物中首次分离得到。展开更多
基金Supported by the National Natural Science Foundation of China （30270083） and Science and Technology Key Program of Guangdong Province of China （2002C20147, C20605）.
文摘The developmental types of secretory cavities in Citrus remain controversial. The relationship between secretory cavity development and the accumulation of essential oil in fruits of Citrus species is also unknown. In order to develop better insights into these problems, histological, histochemical, and cytochemical methods were used to investigate secretory cavity development and the accumulation of essential oll at different developmental stages of fruits of Citrus medica L. var. sarcodactylis （Noot.） Swingle. The results indicate that the secretory cavity of the variety seemed to originate from an epidermal cell and a subepldermal cell. These two cells underwent successive divisions, resulting In the formation of two parts： （Ⅰ） a conical cap; and （Ⅱ） a globular gland. The formation of the lumen was schlzolysigenous. Regular changes in the size of vacuoles and the accumulation of essential oil were revealed during the process of secretory cavity development. In addition, when fruits were a light yellow or golden color, the structure of secretory cavities was well developed and the content of essential oil in a single fruit reached a maximum. It would be most appropriate to collect the fruit as a medicinal material at this time.
文摘目的研究芸香科柑橘属植物川佛手Citrusmedica var. sarcodactylis的化学成分,为该药材的开发利用和质量评价提供依据。方法采用各种色谱技术进行分离纯化,通过理化常数测定和波谱分析进行。结果从川佛手中又分离得到7个化合物,其结构鉴定为:5-羟基-7-甲氧基-8-异戊烯基香豆素(sibiricol,Ⅵ)、6-羟基-7-甲氧基香豆素(7-methylesculetin,Ⅶ)、佛手柑内酯(bergapten,Ⅷ)、Sigmasteryl acetate(Ⅸ)、5-甲氧基-糠醛(5-methoxyfurfural,Ⅹ)、柠檬苦素(limonin,Ⅺ)、胡萝卜苷(daucosterol,Ⅻ)。结论化合物Ⅵ、Ⅶ、Ⅸ为从芸香科植物中首次分离得到。
