【摘要】 菘蓝IsatisindigoticaFort．（2n＝14）和它的人工四倍体（2n＝28）的生药学研究结果表明，2种倍性水平菘蓝的根、叶生药性状及组织特征均有显著差异。发现该植物的染色体加倍产生的巨形性特征不仅在器官之间发展不均衡，而且在同一器官的不同组织之间发展也不平衡。四倍体高产品系与原二倍体相比，在接近收获期叶中靛蓝含量提高1．79％～3．11％，是原二倍体的近2倍或3倍，靛玉红含量也有明显提高，叶中多糖含量与原二倍体相当；根中多糖含量比原二倍体略低1％左右，但总氨基酸含量比原二倍体提高了4．8％。更多还原

【Abstract】 Morphological and histological characteristies of the root (Banlamgon ) and leat (Daqiingye ) of lsatis indigotica Fort. derived from the autoteraploid (2n = 28) and its parent diploid (2n = 14 ) were compared macroscopically and microscopically. Results showed that expression of poly ploidy giantism resulting from chromosome duplication were evident not only among organs but also among tissues of the same organ. Leaves of the tetraploid contained 1 .79~3.11μg/mg more indigo than the diploid near the harvest time.Inerease of indirubin was also obvious.polysaccharide in the leave showed no much difference but that in the root was doubled and total amino acid was increased by 4.8%.更多还原