The alkaloid contents were highest in root and stem base phloem of Amur corktree saplings, and lower in leaves, xylem and periderm.
黄檗幼树根韧皮部和茎干基部的韧皮部中主要药用成分含量很高，而叶片、木质部和周皮很低。
The alkaloid contents were highest in root and stem base phloem of Amur corktree saplings, and lower in leaves, xylem and periderm.
黄檗幼树根韧皮部和茎干基部的韧皮部中主要药用成分含量很高，而叶片、木质部和周皮很低。
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