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茉莉花瓣细胞超微结构研究 被引量:4

Research on the Cell Microstructure of Jasminum sambac s Petal
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摘要 为了探讨茉莉花香气形成、释放的机理,采用透射电子显微镜,对不同释香阶段茉莉花瓣的细胞超微结构进行了观察.结果发现,茉莉花瓣细胞中存在电子密度较低、体积较大的颗粒和电子密度较高、体积较小的颗粒(分别简称为Gl和Gh颗粒),并在Gh颗粒周围存在清晰的晕圈;在茉莉花释香过程中,两种颗粒在形态上均发生明显的变化,推测Gl颗粒可能是白色体,是茉莉花香气前体物或能量物质的贮存器,Gh颗粒可能为溶酶体,与香气形成的酶系统有关,Gh颗粒周围存在的晕圈可能是香气物质,香气物质的形成是Gl和Gh颗粒相互作用的结果.此外,同一细胞中Gh颗粒形态的变化具有不同步性的特点。 In order to inquire into the aroma forming and releasing mechanism in jasmine flowers,the cell microstructure of the petal during aroma releasing was observed through an electronic microscope.The results showed that there were two kinds of grains in the cells,one was large and had low electron density,Gl for short,while the other was small and had high electron density,Gh for short.The latter ones had a circle around it which can be seen through the microscope.During the aroma releasing period,the shape of the two grains changed distinctly,which led to the inference that Gl was the leucoplast,the store room of aroma precursors or energe substances,and that the Gh was probably the lysosome which is related to the enzyme systems aroma producing.The circle around Gh is the formed fragrant constituents and the aroma forming is the result of the interaction of Gh and Gl .In addition,this experiment also provided the theoretic foundation to control the speed of aroma releasing on the basis of the fact that in one cell,the shapes of Gh grains changed at different speeds.
出处 《湖南农业大学学报(自然科学版)》 CAS CSCD 1999年第2期108-111,共4页 Journal of Hunan Agricultural University(Natural Sciences)
基金 高校博士点基金
关键词 茉莉 花瓣 细胞 超微结构 Jasminum sambac petal cells ultrastructures
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参考文献3

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二级参考文献10

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共引文献7

同被引文献32

  • 1张杨,赵毅民.茉莉根化学成分研究[J].解放军药学学报,2006,22(4):279-281. 被引量:10
  • 2郭素枝,邱栋梁,张明辉.白兰开花过程中花被片结构的变化与释香机理[J].热带作物学报,2006,27(4):34-40. 被引量:13
  • 3邱长玉,高国庆,丁锦平,陈伯伦,韦昌联.茉莉花基因组DNA的提取[J].江西农业学报,2007,19(4):40-41. 被引量:8
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