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茶叶科学 ›› 2005, Vol. 25 ›› Issue (2): 126-130.doi: 10.13305/j.cnki.jts.2005.02.008

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茶树荧光性绿斑病叶细胞中的晶体研究

张丽霞1, 王日为2, 向勤锃1, 黄晓琴1, 刘德华3   

  1. 1. 山东农业大学园艺科学与工程学院,山东 泰安 271018;
    2. 山东农业大学化学与材料科学学院,山东 泰安 271018;
    3. 湖南农业大学食品科学与技术学院,湖南 长沙 410128
  • 出版日期:2005-06-25 发布日期:2019-09-16
  • 作者简介:张丽霞(1965— ),女,湖南湘潭人,教授,主要从事茶学科研与教学工作。
  • 基金资助:
    山东省教育厅重点项目(J02H04)和山东农业大学博士基金

Studies on the Crystals in the Cells of Tea Foliage Suffering Fluorescent Green Spot Disease

ZHANG Li-xia1, WANG Ri-wei2, XIANG Qin-zeng1, HUANG Xiao-qin1, LIU De-hua3   

  1. 1. College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, China;
    2. College of Chemistry and Science of Material,Shandong Agricultural University, Tai’an 271018, China;
    3. College of Foodstuff Science and Technology ,Hunan Agricultural University,Changsha 410128, China
  • Online:2005-06-25 Published:2019-09-16

摘要: 为探明茶树荧光性绿斑病叶细胞中大量存在的晶体性质,了解晶体形成与病害发生之间的相互关系,运用扫描电子显微镜、电子探针、X射线粉末衍射技术和化学分析多种方法,对病叶细胞中的晶体形态、化学组成以及含量与病害程度的相关性进行了研究,结果表明:病叶细胞中存在的晶体为草酸钙晶体,其分子式为CaC2O4·H2O,整个晶体并非仅由纯晶体物质所构成,在晶体内部还含有细胞中的其它物质,病叶细胞含有簇晶、棱晶、板晶和砂晶多种晶体形态;茶树叶片草酸钙晶体含量随病害程度加重而增加,两者相关性达到极显著水平。

关键词: 茶学, 茶树, 荧光性绿斑病, 晶体, 草酸钙

Abstract: To prove up the property of numerous crystals found in the cells of tea foliage suffering fluorescent green spot disease, the methods of scanning electronic microscope, electron probe, X ray powder diffraction and chemical analysis were applied to observe the shape of crystals, identified the chemical molecular formula and analyzed the content and also its correlation with the degree of fluorescent green spot disease. Results showed the crystals belonged to the type of calcium oxalate, its molecular formula was CaC2O4·H2O; But calcium oxalate was only covered on the surface layer of crystals, in which contained other substances. The morphology of crystals were four types, i.e. druse, prismatic, laminose and sand.The content of calcium oxalate increased in accordance with degree of disease. On the basis of statistical analysis, the effect of disease degree on content of calcium oxalate was obviously.

Key words: Tea Science, Camellia sinesis (L.).O.Kuntze, Fluorescent green spot disease, Crystal, Calcium oxalate

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