“plerome”的英文意思_释义_用法

单词

plerome

释义

plerome Bot.|ˈplɪərəʊm|
[ad. Ger. plerom (Hanstein 1868), ad. Gr. πλήρωµα a filling: see prec.]
The innermost layer of the primary tissue or meristem at a growing-point, which develops into the fibrovascular tissue, or into this and the pith. (Cf. dermatogen, periblem.)
1875Bennett & Dyer Sachs' Bot. 127 If no pith is formed, as in many roots and some shoots.., the whole of the plerome is developed into procambium.1884Bower & Scott De Bary's Phaner. 7 As Hanstein has shown, the young embryo of the Angiospermous Phanerogams separates, while still consisting of few cells,..into three layers, or groups of cells, which differ in their arrangement and direction of division; these were termed by their discoverer, Dermatogen, Periblem, and Plerome.
b. attrib., as plerome-body, plerome-cylinder, plerome-sheath.
1882Vines Sachs' Bot. 166 The origin of lateral roots in a mother-root is always on the outside of its axial fibrovascular or plerome-cylinder.Ibid. 167 These mother-cells of the lateral roots lie in the plerome-sheath.

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