| 单词 | pit membrane |
| 释义 | > as lemmaspit membrane pit membrane n. Botany the relatively thin area of primary cell wall and middle lamella at the base of a pit, esp. when this forms the common partition between the opposed pits of a pit pair. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [noun] > cell > parts of cell > cell wall and parts septum1720 pit1839 sieve-plate1875 sieve-pore1875 sieve-tube1875 anticlinal1882 periclinal1882 sieve-vessel1882 pit cavity1884 pit membrane1884 middle lamella1887 torus1887 tonoplast1895 pit canal1911 pit chamber1917 pit aperture1918 pit pair1933 pit field1934 margo1965 sieve-tissue- 1884 Philos. Trans. 1883 (Royal Soc.) 174 818 A communication between adjacent cells is established by means of pits, the pit membrane being perforated by fine protoplasmic threads. 1913 Forestry Q. 11 15 The delicate pit membranes were ruptured by the shrinkage of the cell walls in drying. 1987 Amer. Jrnl. Bot. 74 1438 The model also showed that the pit membranes account for an increasing percentage of total resistance to water flow as the lumen diameter increases. < as lemmas |
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