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middle lamella
middle lamella
Danh từ
Số nhiều: middle lamellae
This term is a specialized botanical expression used almost exclusively in plant anatomy and histology. It describes the outermost layer of the cell wall, functioning as a biological glue that ensures structural integrity by binding adjacent cells together.
Because it is composed primarily of pectins, the middle lamella is chemically distinct from the cellulose-rich primary and secondary walls. In a laboratory context, the degradation of this layer is what allows plant tissues to separate during certain developmental processes or through enzymatic digestion.
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