Browsing by Author "Tisserat, B."
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Item A Histological Study of Development of Adventive Embryos in Organ Cultures of Phoenix dactylifera L(1980) Tisserat, B.; Demason, D.A.Callus cultures from axillary buds of 2-4-year-old offshoots or Phoenix dactylifera L. have yielded pIantlets adventitiously. Adventive embryos originated from meristemalic cytoplasm-rich cells located in the epidermal and adjacent sub-epidermal portions of the periphery of callus on a basal medium supplemented with 2.4-D and isopentenyladenine. The formation of adventive embryos is. described. Morphogenetically complement cells proliferate into globular proembryos which differentiate into bipolar structures. Transfer to a medium devoid of hormones enhances embryo development and promotes plantlet growth. Comparative studies were made between zygotic and adventive embryos in various stages of development.