Abstract:
Magnesium (Mg) is a component of several primary and secondary minerals in the
soil. Mg act as a central atom in the chlorophyll molecule and responsible for plant
leaf trapping light. Magnesium is also essential in the synthesis of chlorophyll and
photosynthesis process. In this study the effect of various Mg concentrations on
phenolics compound in Cryptocoryne elliptica grown tissue culture was investigated.
Two month old of in vitro plantlets were aseptically transferred into modified B5
medium with Mg at 0, 12.2, 24.3, 36.5 and 48.7mM. The plantlets fresh weight, total
phenolic, flavonoids and anthocyanin content were measured at every 7 days interval
for 8 weeks. C. elliptica can survive after 8 weeks of culture under_ Mg deficient.
Excess amount of Mg al-so not significantly alter the fresh weight of C. elliptica
plantlets and higher fresh weight was in 24.3 to 48. 7mM Mg. The total phenolic,
flavonoids and anthocyanin content were increased accordingly with Mg
concentration. Culture of C. elliptica could growth in broad range of Mg
concentration. The present of Mg also contributed to the biosynthesis of phenolics
compound in this plant.