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Electronic Journal of Biotechnology
versión On-line ISSN 0717-3458
SHARMA, Ashwani; KUMAR, Vinod; GIRIDHAR, Parvatam y RAVISHANKAR, Gokare Aswathanarayana. Induction of in vitro flowering in Capsicum frutescens under the influence of silver nitrate and cobalt chloride and pollen transformation. Electron. J. Biotechnol. [online]. 2008, vol.11, n.2, pp.84-89. ISSN 0717-3458. http://dx.doi.org/10.4067/S0717-34582008000200011.
The influence of silver nitrate (AgNO3) and cobalt chloride (CoCl2) on shoot multiplication and in vitro flowering in Capsicum frutescens Mill. was investigated. Exogenous administration of AgNO3 and CoCl2 at a concentration of 30 µM resulted in the maximum tissue response in terms of shoot length and number of shoots after 45 days culturing on MS medium. Both silver nitrate (40 µM) and cobalt chloride (30 µM) influenced in vitro flowering after 25 and 45 days respectively. This is the first report on in vitro flowering in C. frutescens. The study also demonstrated successful transformation of pollen obtained from the in vitro flowers. Since capsicum is highly recalcitrant to in vitro plant regeneration, the results of the study may be highly useful in transformation of capsicum using germ free in vitro flowers.
Palabras clave : Capsicum frutescens; cobalt chloride; in vitro flowering; pollen transformation; regeneration; silver nitrate.