DETERMINATION OF THE PORE-SIZE OF CELL-WALLS OF LIVING PLANT-CELLS
DETERMINATION OF THE PORE-SIZE OF CELL-WALLS OF LIVING PLANT-CELLS
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DOI：
10.1126/science.205.4411.1144
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发表时间：
1979-01-01
期刊：
影响因子：
56.9
通讯作者：
DELMER, DP
中科院分区：
文献类型：
--
作者：
CARPITA, N;SABULARSE, D;DELMER, DP
用溶质排斥技术测定了植物细胞壁上分子可自由通过的气孔的极限直径，其中raphanus sativus根毛细胞和棉纤维的气孔的极限直径为35 ~ 38埃，facer pseudoplatanus的培养细胞的极限直径为38 ~ 40埃，xanthium strumariumandCommelina communis叶片栅栏薄壁细胞的极限直径为45 ~ 52埃。这些结果表明，直径大于这些孔的分子穿透这种细胞壁的能力将受到限制，并且这种细胞壁可能代表细胞通信的更重要障碍，而不是先前假设的那样。
The limiting diameter of pores in the walls of living plant cells through which molecules can freely pass has been determined by a solute exclusion technique to be 35 to 38 angstroms for hair cells ofRaphanus sativusroots and fibers ofGossypium hirsutum, 38 to 40 angstroms for cultured cells ofAcer pseudoplatanus, and 45 to 52 angstroms for isolated palisade parenchyma cells of the leaves ofXanthium strumariumandCommelina communis. These results indicate that molecules with diameters larger than these pores would be restricted in their ability to penetrate such a cell wall, and that such a wall may represent a more significant barrier to cellular communication than has been previously assumed.