polygonum thunbergii/potasyòm

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[Biotransformation of 4-methyl-7-allyloxy coumarin by transgenic hairy roots of Polygonum multiflorum].

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OBJECTIVE To synthesis 4-methyl-7-allyloxy coumarin by Williamson etherification from 4-methyl-7-hydroxy coumarin and apply as a substrate in hairy roots of Polygonum multiflorum. METHODS The synthesis reaction of 4-methyl-7-allyloxy coumarin used the allyl bromide and potassium carbonate as

Habitat and plant communities in the Nile Delta of Egypt. II. Irrigation and drainage canal bank habitat.

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The present study provides quantitative analysis of the vegetation and spatial variations of environmental factors controlling the abundance and distribution of vegetation in canal and drain banks in the Nile Delta region of Egypt. Five vegetation groups have been recognized: group A codominated by

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Herbal & Natural Medicine

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