| 释义 |
rhexigenous, a. Bot.|rɛkˈsɪdʒɪnəs|
[f. Gr. ῥῆξις breaking (see next) + -genous.]
Of an intercellular space in plant tissue: formed by the spontaneous mechanical rupture of cells. Hence rheˈxigenously adv., rheˈxigeny.
1940Chambers's Techn. Dict. 722/1 Rhexigenous. 1957Bot. Rev. XXIII. 304 Rhexigenous lacunae would appear to be quite common in fleshy fungi, while lysigenous and schizogenous ones are more often found in higher, green plants. 1965K. Esau Plant Anat. (ed. 2) viii. 188 Other large air spaces may arise lysigenously or rhexigenously. Ibid. xvii. 487 Large spaces may also result from a more or less extensive breakdown of cells by processes of lysigeny or rhexigeny. 1965Bell & Coombe tr. Strasburger's Textbk. Bot. 103 (caption) Intercellular canal produced by the rupture of the annularly thickened tracheids of the protoxylem and the surrounding parenchyma (i.e. rhexigenously). 1978Acta Amazonica VII. 484/2 Rhexigenous lacunae are present both in the petiole and midrib of the leaf blade. |