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PGR-08理化性质及生物活性的研究
许鸿源;许鸿章;杨美纯;周岐伟
1.广西大学农学院;2.中国医学科学院医用生物技术研究所;3.广西大学农学院 广西南宁530005;4.北京190050;5.广西南宁530005
摘要:
PGR-0 8是从某种土壤放线菌 (Actinomyces)的发酵液中分离提纯得到的白色结晶 ,纸层析和熔点检测证明它是化学单体 ,mp 1 80~ 1 81℃ ,[α]2 1D+ 4 3°(H2 O)。溶解性试验表明它易溶于 H2 O(≥ 6 0℃ )、HCl、Na OH、(CH3 ) 2 CO、CH3 OH和 C2 H5OH等 ,但不溶于 Na HCO3 。Tollen、Fehling和 Ag NO3 -溴酚兰等专性试剂的颜色反应表明其组成成分中有嘌呤和糖。生物试验证明 :PGR-0 8具有细胞分裂素的活性 ,例如它能减缓蒲公英离体叶圆片 Chl.的降解 ,延长叶圆片寿命 1~ 2倍以上 ...
关键词:  PGR-08    物理化学性质    生物活性    细胞分裂素
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