| 单词 | canal cell |
| 释义 | > as lemmascanal cell canal cell n. Botany any of a number of short-lived cells present in either the neck or central cavity of an archegonium, which typically degrade to form the canal through which fertilization takes place.Cf. neck canal cell n. at neck n.1 Compounds 2. ΘΚΠ the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [noun] > parts of > cells > other cryptogam cells canal cell1864 hyaline cell1870 neck cell1877 neck canal cell1887 1864 Nat. Hist. Rev. Apr. 234 Assuming the so-called canal-cell, and with it the membrane of the central cell, to be ruptured at the apex, the lower portion of the membrane of the canal-cell would still..remain as a barrier to prevent the free passage of the spermatozoa. 1936 W. Stiles Introd. Princ. Plant Physiol. xviii. 399 Absorption of water by the walls of the canal cells of the archegonium results in the disappearance of these walls also, leaving a channel for the passage of the spermatozoid to the ovum. 2013 Plant Physiol. 162 1406 The PpSHI genes are required for..the progression of canal cells into a cell death program. < as lemmas |
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