Regeneration and Histological Analysis of Regeneration in Bottle Gourd (Lagenaria siceraria (Molina) Stand.)

Authors: YEŞİM YALÇIN MENDİ, MUZAFFER İPEK, NİHAL BUZKAN, YILDIZ AKA KAÇAR, SEBAHATTİN ÇÜRÜK

Abstract: Two different types of explant (proximal and flamingo-bill) from Emphasis seedlings, a hybrid cultivar of bottle gourd (Lagenaria siceraria (Molina) Stand.), germinated under dark and light conditions were cultured on 9 regeneration MS media containing various combinations of BA (0, 1.0, and 2.0 mg l^{-1}) and IAA (0, 0.25, and 0.5 mg l^{-1}). Comparison of the explant types showed that the flamingo-bill type explant had better shoot formation than did the proximal explant. The MS medium containing 1 mg l^{-1} of BA was optimal for shoot formation capacity when flamingo-bill type explants germinated in the dark (44%) and light (36%) were used. Histological analysis showed that explant cell division began after 3 days in regeneration medium and formation of primordium was observed in the tissues in culture between days 5 and 7. Differentiation of meristimatic structures was first observed after 9 days and development completed after 9-12 days in the culture.

Keywords: Bottle Gourd, Lagenaria siceraria, regeneration, histology, explant type

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