Now, Some high-quality ornamental plants lack fragrance and can not completely meet the market demand. It's a value to the floral gene clone.

Acquiring barley mutants and research on them was key for gene clone and function analysis, and was the base of improvement for agricultural character using biotechnology.

The purpose of this paper is to review citrinin's physicochemical properties, toxicity, inhibiting bacteria activity, analytical methods, biosynthetic pathway, gene clone, etc.