| 释义 |
periblem
periblem (ˈpɛrɪˌblɛm) n (Botany) botany a layer of meristematic tissue in stems and roots that gives rise to the cortex[C19: via German from Greek periblēma protection, from periballein to throw around, from peri- + ballein to throw]Periblem
periblem[′per·ə‚blem] (botany) A layer of primary meristem which produces the cortical cells. Periblem in botany, one of the layers of initial meristematic cells of the root apex. From the periblem arise the cells of the primary cortex of the root and, sometimes, the cells of the root cap and protoderm, which are differentiated into the epiblem. The periblem does not appear in the shoot apex. |