| 单词 |
protoderm |
| 释义 |
protoderm
pro·to·derm P0616500 (prō′tə-dûrm′)n. Botany The primary meristem that gives rise to epidermis. Also called dermatogen.
pro′to·derm′al adj.protoderm (ˈprəʊtəʊˌdɜːm) n (Botany) the layer of meristematic cells from which a plant's epidermis developspro•to•derm (ˈproʊ təˌdɜrm)
n. a thin outer layer of the meristem in embryos and growing points of roots and stems, which gives rise to the epidermis. Also called dermatogen. [1930–35]
Protoderm
protoderm[′prōd·ə‚dərm] (botany) dermatogen Protoderm the outer layer of cells of the apical meristem of the shoot and root. The epidermis of the shoot, the epiblem of the root, and, less often, several subepidermal tissues are differentiated from the protodermal cells. protoderm
pro·to·derm (prō'tō-derm), The undifferentiated cells of very young embryos, from which the primordial germ layers will evolve. [proto- + G. derma, skin] protoderm (prō′tə-dûrm′)n. Botany The primary meristem that gives rise to epidermis. Also called dermatogen.
pro′to·derm′al adj.ThesaurusSeemeristem |
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