Study on the microstructure of biocrystals in invertebrates and its phylogeny

无脊椎动物生物晶体的微观结构及其系统发育研究

基本信息

  • 批准号:
    60460055
  • 负责人:
  • 金额:
    $ 1.34万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
  • 财政年份:
    1985
  • 资助国家:
    日本
  • 起止时间:
    1985 至 1986
  • 项目状态:
    已结题

项目摘要

In this study, the microstructure of biomineral and the shell structure were examined by the use of electron and optic microscopes. For elucidating the mechanism of shell formation, the biocrystal growth on the inner shell surface of about twenty species of gastropods was observed. There are two types in nacreous growth, namely pillar and sheet nacreous growth. The crossed lamellar growth of gastropods is similar to one of pelecypods. Aragonite and calcite crystals grow at the same area.Especially, the shell structure of Monodonta and so on was examined in details. As the result, many features of gastropodian shells are common to ones of pelecypods. But, there are some different points in the development of the most inner shell layer, the formation of trans-prismatic layer and the nature of crossed lamellar and nacreous structures.The ultra-microstructure of biocrystals was examined by transmitted electron microscope. It was observed that the third order lamellae of aragonite crystal in the shell of Barbatia are not a single crystal, but polysynthetically twinned crystals. The composite plane of the polysynthetic twinning is (110) plane. The thickness of polysynthetic twin individuals is several hundreds - less than a hundres A. Aragonitic biocrystals of homogeneous and nacreous structures form also twin structure.Epithelial calcified tissues of invertebrates had differetiated at the stage of protozoa and higher animals succeeded to them. Calcreous shell and organic layers differentiated in the course of biological evolution. Organic matrixes of the former originated from homologous materials of glico-calyx and crystal deposition in organic matrixes was gained in relation to metabolic activity.
本研究利用电子显微镜和光学显微镜对生物矿物的显微结构和贝壳结构进行了研究。为了阐明贝壳形成的机理,对20种腹足类内壳表面的生物晶体生长进行了观察。珍珠层生长有柱状和片状两种类型。腹足类的交叉片层生长与盘足类相似。文石和方解石晶体生长在同一区域,特别是单齿类等的壳结构被详细研究。因此,腹足类贝壳的许多特征与腹足类贝壳的特征是相同的。但在最内层壳层的发育、反棱柱层的形成以及交叉片层和钠化结构的性质等方面存在着一些不同点。观察到Barbatia贝壳中文石晶体的三级片晶不是单晶,而是多合成的孪晶。合成纤维孪晶的复合面为(110)面。合生双生子个体的厚度为几百-不到一百厘米。无脊椎动物的上皮钙化组织在原生动物阶段就已经发生了钙化,高等动物则继承了无脊椎动物的上皮钙化组织。生物演化过程中,钙质壳层和有机层发生了分化。前者的有机基质来源于糖萼的同源物质,有机基质中的晶体沉积与代谢活动有关。

项目成果

期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Kobayashi, Iwao: "Shell structure and growth surface of Batillus and Monodonta" The Japanese Journal of Malacology.
小林岩尾:“蝙蝠菌和斑齿兽的壳结构和生长表面”,日本软体动物学杂志。
  • DOI:
  • 发表时间:
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  • 影响因子:
    0
  • 作者:
  • 通讯作者:
小林巌雄: 貝類学雑誌.
小林岩夫:贝类科学杂志。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
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  • 通讯作者:
赤井純治: 地球科学.
赤井顺二:地球科学。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Akai, Junji: "Mineralogical investigation on fine textures and structures in biocrystals I. Twinning structure of aragonite in bivalved molluscs" Earth Science.
赤井淳二:“生物晶体精细纹理和结构的矿物学研究 I.双壳类软体动物文石的孪生结构”地球科学。
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    0
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KOBAYASHI Iwao其他文献

KOBAYASHI Iwao的其他文献

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{{ truncateString('KOBAYASHI Iwao', 18)}}的其他基金

Natural user interface for developmental support of visual-cognitive functions in persons with severe physical and intellectual disabilities
自然用户界面,为患有严重身体和智力残疾的人提供视觉认知功能的发展支持
  • 批准号:
    16H03072
  • 财政年份:
    2016
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Implementation and educational use of communication devices for persons with severe motor and intellectual disabilities
为严重运动和智力障碍人士实施和教育使用通信设备
  • 批准号:
    18680051
  • 财政年份:
    2006
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Young Scientists (A)
Study on Quaternary Geological Characteristics of Echigo Plain
越后平原第四纪地质特征研究
  • 批准号:
    07640597
  • 财政年份:
    1995
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Geological Study on translation and variation of earth materials in the curst and surface of the earth
地壳和地表中地球物质平移和变化的地质研究
  • 批准号:
    02402016
  • 财政年份:
    1990
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (A)
Late Cenozoic Stratigraphy and Paleoenvironmental Change of the Coastal Area along the Sea of Japan
日本海沿岸晚新生代地层与古环境变迁
  • 批准号:
    62302019
  • 财政年份:
    1987
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Co-operative Research (A)

相似海外基金

FMSG: Bio: Interface-Directed Manufacturing of Piezoelectric Biocrystal Thin Films
FMSG:生物:压电生物晶体薄膜的界面导向制造
  • 批准号:
    2328250
  • 财政年份:
    2024
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Standard Grant
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