Pericarp structure and permeability in Tilia miqueliana were explored using anatomy, paraffin section detection, scanning electron microscopy, and magnetic resonance imaging. The pericarp of intact T. miqueliana seeds comprised an exocarp, mesocarp, and endocarp. The exocarp was densely covered with villi and consisted of irregular thin-walled cells. The mesocarp was highly lignified and impermeable, with slender, thick-walled, round and irregularly polygonal cells. The endocarp consisted of spherical parenchyma cells. The water gap provided an entry point for free water in intact seeds. The impermeable and highly lignified mesocarp creates a mechanical and permeability barrier, inhibiting germination in T. miqueliana. Liquid chromatography–mass spectrometry was used to identify the chemical composition of the pericarp. Identified compounds included phenols, esters, organic acid, lipids, aldehydes, as well as unsaturated fatty acids, which likely play a role in suppressing germination.

利用解剖学，石蜡切片检测，扫描电子显微镜和磁共振成像技术研究了T树的果皮结构和通透性。完整的T. miqueliana种子的果皮包含外果皮，中果皮和内果皮。外果皮被绒毛密集覆盖，由不规则的薄壁细胞组成。中果皮高度木质化且不可渗透，具有细长，厚壁，圆形和不规则多边形细胞。内果皮由球形薄壁组织细胞组成。水隙为完整种子中的自由水提供了入口。不可渗透且高度木质化的中果皮产生机械和渗透屏障，从而抑制了密克罗非鱼的发芽。液相色谱-质谱法用于鉴定果皮的化学成分。鉴定出的化合物包括酚，酯，有机酸，脂质，醛以及不饱和脂肪酸，它们可能在抑制发芽中起作用。