SHOOT ORGANOGENESIS IN TISSUE-CULTURE OF DRIMYS-WINTERI
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Date
1981
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Abstract
Calluses from stem explants of D. winteri Forst. (Winteraceae) initiated shoot organogenesis in vitro in hormone-containing media under light exposure. Shoots formed from callus-derived outgrowths and from the superficial callus layers of the explants. Light inhibited callus initiation but promoted growth of established cultures. Root organogenesis did not occur under any of various hormonal conditions. Active synthesis of anthocyanins was observed in morphogenetic tissue. [Plant tissue culture, its limitations and potential use in forest improvement was recently discussed. D. winteri Forst. (Winteraceae) is a representative tree species of the evergreen forest in southern Chile (40.degree. S latitude). As a fast growing species, it might become an alternative source of wood in the near future.].