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histogen
histogen (ˈhɪstəˌdʒɛn) n (Botany) (formerly) any of three layers in an apical meristem that were thought to give rise to the different parts of the plant: the apical meristem is now regarded as comprising two layers. See corpus, tunicahis•to•gen (ˈhɪs tə dʒən, -ˌdʒɛn)
n. a region in a plant in which tissues differentiate. [1920–25] histogen
histogen[′his·tə·jən] (botany) A clearly delimited region or primary tissue from which the specific parts of a plant organ are thought to be produced. histogen
histogen a distinct tissue zone found in many plants in the apical meristem, particularly in the root-apical meristem. |