杜仲叶含胶细胞的超微结构特征研究

XU Wenxiu, SHANG Zhaomeng,LIU Jialin, WANG Donghao, CHEN Shuxin, BI Susu,GONG Xiumei,LIU Lin,ZHANG Guizhi

China Fruit & Vegetable（2022）

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Abstract

为了解杜仲叶含胶细胞分布及所含胶滴超微特征,采用光学显微技术和透射电子显微技术对叶片进行观察.结果表明,叶片内有非液泡化含胶细胞和液泡化含胶细胞,前者不含大液泡,仅为韧皮部较窄的薄壁细胞;后者含中央大液泡,包括韧皮部较大的薄壁细胞以及叶肉细胞和表皮细胞.非液泡化含胶细胞被胶滴占满,光镜下分辨不出胶滴间的界线,需要在电镜下分辨;液泡化含胶细胞中胶滴相对稀疏,光镜下可分辨出胶滴.胶滴内部电子密度相对较低,表面电子密度相对较高.叶肉细胞内尤其海绵细胞内,胶滴倾向于聚集在细胞核表面.

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Key words

Eucommia leaf blade,gutta-accumulating lipid droplet,non-vacuolated gutta-containing cell,vacuolated gutta-containing cell

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