Commonly used carbon energy source in plant tissue culture media is

A commonly used carbon energy source in plant tissue culture media is Sucrose.
Sucrose has been frequently used as a carbon source in plant tissue culture for energy supply and induction of osmotic stress, but its optimal concentration required for each stage of in vitro culture depends mainly on the plant species.
The most preferred carbon or energy source is sucrose at a concentration of 20 - 60 g/L. But the levels of sucrose that are normally used to support the growth of tissue cultures are often inhibitory to chlorophyll synthesis.