The role of calcium channels in anthocyanin production in callus cultures of Daucus carota

Sudha, G. and Ravishankar, G. A. (2003) The role of calcium channels in anthocyanin production in callus cultures of Daucus carota. Plant Growth Regulation, 40. pp. 163-169.

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Abstract

The involvement of Ca2+ ATPases in anthocyanin accumulation in callus cultures of Daucus carota was investigated under the influence of calcium and calcium channel modulators. Ionophore (I) treatment enhanced callus growth and anthocyanin accumulation. Increasing the amount of calcium applied to cultures enhanced the anthocyanin level. Ionophore treatment influenced the enhancement of Ca2+ATPase and endogenous titres of PAs. Addition of the calcium channel blocker verapamil or the calmodulin antagonist chlorpromazine to the A23187 (ionophore) treated cells caused a reduction in anthocyanin levels. Channel blockers reduced Ca2+ATPase activity, which was restored by ionophore treatment, showing the importance of calcium in anthocyanin production. Higher ethylene levels were also found in treatment with ionophore or 2X calcium. Thus the influence of ionophore in anthocyanin production and its inhibition by calcium channel modulators suggests that calcium plays an important role in the production of anthocyanin by carrot callus cultures.

Item Type:	Article
Uncontrolled Keywords:	Ca2+ATPase, Calcium ionophore, Putrescine
Subjects:	600 Technology > 08 Food technology > 23 Vegetables > 04 Carrot 500 Natural Sciences and Mathematics > 10 Plants > 04 Plant Physiology
Divisions:	Plant Cell Biotechnology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	29 Jun 2009 09:00
Last Modified:	30 Apr 2012 07:14
URI:	http://ir.cftri.res.in/id/eprint/9127

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