Plant carotenoids: genomics meets multi-gene engineering.

Area of Science:

• Plant biochemistry and molecular biology.
• Metabolomics and metabolic engineering.

Background:

• Carotenoids are essential pigments in plant photosynthesis, involved in light harvesting and photoprotection.
• In non-photosynthetic tissues, carotenoids function as colorants, precursors to volatile compounds, signaling molecules (e.g., abscisic acid), antioxidants, and vitamin A precursors.

Purpose of the Study:

• To review recent advances in carotenoid biosynthesis.
• To highlight key metabolic steps controlling carotenoid accumulation in non-photosynthetic plant tissues.
• To discuss metabolic engineering strategies for carotenoid production using multi-gene approaches.

Main Methods:

• Literature review of recent scientific publications.
• Analysis of metabolic pathways and regulatory mechanisms.
• Synthesis of information on multi-gene engineering strategies.

Main Results:

• Detailed overview of current knowledge on carotenoid biosynthetic pathways.
• Identification of critical control points for carotenoid accumulation in various plant tissues.
• Examples of successful metabolic engineering of carotenoid pathways.

Conclusions:

• Significant progress has been made in understanding carotenoid biosynthesis and regulation.
• Metabolic engineering offers promising avenues for enhancing carotenoid content in plants.
• Further research can optimize carotenoid production for nutritional and industrial applications.