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Alkaloid Constituents of ficus hispida and Their Antiinfammatory Activity

Natural Products and Bioprospecting 2020年第1期10卷 45-49页

作者： Xin-Yu Jia Yong-Mei Wu Jing-Ya Li Chun Lei Ai-Jun Hou School of Pharmacy State Key Laboratory of Medical NeurobiologyFudan UniversityShanghai 201203China National Center for Drug Screening Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China

Four new alkaloids,fcuhismines A-D(1-4),together with three known ones,were isolated from ficus *** structures were elucidated by spectroscopic analysis and chemical *** new compounds represent the frst amine alkaloids with a rhamnosyl moiety(1-2)or with a N-oxide motif(2-4)from the genus *** 2 showed potent inhibitory efect in nuclear factor-κB(NF-κB)pathway luciferase assay with IC_(50) value of 0.52±0.11μM.

关键词： ficus hispida Moraceae Alkaloids Antiinfammation Nuclear factor-κB

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Pollination Biology of ficus hispida in the Tropical Rainforests of Xishuangbanna, China

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Acta Botanica Sinica 2002年第5期44卷 519-526页

作者：杨大荣彭艳琼宋启示张光明王瑞武赵庭周王秋艳中国科学院西双版纳热带植物园昆明分部昆明650223

ficus hispida L. (Moraceae) is a remarkable species in the ecosystem of tropical rainforests in Xishuangbanna, China. The figs and fig_pollination wasps (Chalcidoidae: Agaonidae) are highly co_evolved mutualists that depend completely on each other for propagating descendants. Pollination of all fig species is done by fig wasps; their unique symbiotic associates, the fig wasps, cannot develop in anywhere except in the fig syconia. The present paper reports on the biology and flowering phenology of F. hispida , as well as the propagation character and pollination behavior of the fig wasps (Ceratosolen solmsi marchali Mayr) based on our observations in the rainforests of Xishuangbanna, southern Yunnan of China. F. hispida is a dioecious tree that annually blossoms and bears fruits 6-8 times, with four to five fruit_bearing peaks. The male trees produce pollen and provide fig wasps with reproductive havens, while the female trees produce fig seeds after pollination by the female wasps. Pollen of F. hispida cannot escape from the dehiscent anthers until they are disturbed by fig wasps. The female wasps open the anthers and collect pollen with their antennal scrapes, mandibles and legs, and then carry pollen to the female receptive syconia where fertilization takes place. Meanwhile, some of the female wasps lay eggs in the male receptive syconia. It takes about 3-67 min to search for the receptive syconia for pollination, and 15-23 h to enter the female receptive syconia. The number of female wasps entering a syconium has close relation with the impregnation and seed_bearing rate of female flowers, as well as the oviposition and reproduction rate of the fig wasps themselves. F. hispida is endowed with a relatively high level of seed bearing (54.1%-82.5%, average 73.8 %). The wasp oviposition rate on the male flowers is between 72.3% and 93.8% with a mean of 84.4%.

关键词： ficus hispida Ceratosolen solmsi marchali pollination biology tropical rainforest Xishuangbanna

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