石蒜花期前后鳞茎内源多胺含量的动态变化  

Dynamic Variation of Endogenous Polyamines Contents in Bulbs of Lycoris radiata During the Florescence

作　　者：金雅琴[1] 黄雪芳[2] 李冬林[3] 向其柏[4] 

机构地区：[1]金陵科技学院园艺学院,江苏南京210038 [2]江苏教育学院生物系,江苏南京210013 [3]江苏省林业科学研究院,江苏南京211153 [4]南京林业大学风景园林学院,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2007年第5期117-120,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：江苏省自然科学基金资助项目(BK2006087);江苏省教育学院"十五"规划课题

摘　　要：应用薄层层析—荧光测定法研究了石蒜花期前后鳞茎内源多胺含量的动态变化,分析了内源多胺与石蒜开花的关系。在花芽分化前期鳞茎内3种多胺的浓度是递增的,于6月初达到最大;在花芽分化后期,鳞茎内3种多胺的浓度是递减的。花期腐胺Put和精胺Spm含量迅速下降,并维持在较低水平,但花后展叶期又有明显回升。整个发育过程中以Put的含量最高,变幅较大,而亚精胺Spd含量最少,变幅较小。Dynamic variation of endogenous polyamines contents in bulbs of Lycoris radiata during the florescence was studied with thin layer chromatography fluorescence spectrome try, and the relationship between PAs and growth and development of L. radiata was ana lyzed. During the prophase of flower bud differentiation, the PAs concentration was in creased by degrees, which reached peak in early Jun. During the anaphase of flower bud differentiation, the PAs concentration was decreased by degrees. During the florescence Put and Spm contents decreased markedly and kept at a lower content level. In leaves growth phase PAs contents ascended again. In the whole florescence course, Put contents were the most, whose variation breadth was sharp, while Spd contents were the least, fluctuation was slight.

关 键 词：石蒜 花期 内源多胺 动态变化 

分 类 号：S682.2[农业科学—观赏园艺] Q946.8[农业科学—园艺学]