...在异常情况下,如沙粒、寄生虫等入侵刺激,或因病理影响的一部分表皮细胞陷入结缔组织中,产生异常增殖,结果形成珍珠囊 (pearl sac),分泌珍珠质而形成天然珍珠。从发明技术原理来看并不复杂,但技术操作难度却很大。
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pearl-sac 珍珠囊
pearl-sac cell 珍珠囊细胞
formation of pearl-sac 珍珠囊发育
Pearl sac epthelial cell 珍珠囊细胞
pearl sac epithelial cell 珍珠囊细胞
cultured pearl sac in vitro 珍珠囊体外培育
Wandering cells are more active during the early developmental stage of the pearl sac.
游走细胞在珍珠囊的早期发育阶段十分活跃。
The secretion of the pearl sac cells is rhythmic, which is adaptive for the formation of the multiple crystalline layers of the pearl.
珍珠囊细胞的分泌活动具有节律性和区段性的特点，这种区段性和节律性的分泌与珍珠多层结晶纤层的形成相适应。
A single tablet is irregular polygon in shape which is 3-5 um long, 2-3um wide and 0.2-0.5um thick, the size is determined by the epithelial cells of the pearl sac.
组成霰石晶层的单元晶为长3-5微米、宽2-3微米和厚0.2-0.5微米的不规则多边形板块。板块的大小由珍珠囊上皮细胞的表面积决定。
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