Somatic embryogenesis and plant regeneration of Tripsacum dactyloides L. |
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| Authors: | Antonella Furini David C Jewell |
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| Institution: | (1) CIMMYT International Maize and Wheat Improvement Center, Lisboa 27, Apdo. Postal 6-641, 06600 Mexico, D.F., Mexico |
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| Abstract: | Summary This article reports the culture and plant regeneration of Tripsacum dactyloides. Mature embryos of Tripsacum dactyloides dactyloides were used to obtain embryogenic callus cultures. Currently, 180 normal plants have been regenerated from these cultures. Callus was initiated on MS medium supplemented with dicamba (10  mol or 20 mol) and sucrose (3% or 6%), and plants were regenerated on hormone free MS medium containing 2% sucrose. No significant differences were found in callus initiation frequency or in embryogenic response of cultures on the four combinations of sucrose and dicamba tested. The embryogenic cultures have been maintained for 9 months (12 subcultures) and have retained regeneration capacity. Plants regenerated from tissue culture of maize-by-Tripsacum hybrids could be useful in maize improvement. |
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| Keywords: | Tripsacum dactyloides embryogenic callus plant regeneration in vitro culture mature embryos |
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