Scientists Turn Red Perilla into Green with Boosted Health Benefits

Topic: Biology

Researchers at Hiroshima University used genome editing to change red perilla's color and boost its health-promoting compounds. They disabled a single enzyme gene, leading to higher levels of flavones and other beneficial compounds.

Scientists at Hiroshima University have made a breakthrough in plant science. They took the red variety of perilla, a popular herb used in Asian cuisine, and transformed it into a green look-alike using genome editing.

Perilla is known for its many health benefits, including antioxidant, anti-inflammatory, and antibacterial properties. It contains over 400 bioactive compounds, such as anthocyanins and luteolin, which are prized for their potential health benefits. However, the genetic mechanisms controlling the production of these compounds were not well understood.

The researchers used CRISPR-Cas9, a powerful tool that allows scientists to precisely modify DNA. They disabled a gene called flavanone 3-hydroxylase (F3H), which encodes an enzyme that plays a key role in the production of flavonoids. The result was immediate: the plants lost their red color and developed green leaves.

Chemical analyses revealed that the edited plants produced lower amounts of anthocyanins, but higher levels of flavones, including luteolin and rosmarinic acid. These compounds are associated with multiple health benefits, making the edited perilla a valuable resource for the food and pharmaceutical industries.

Why It Matters

This breakthrough could lead to the development of high-value crops that can be used in food and medicine. It also shows the potential of genome editing to improve plant metabolism and boost health-promoting compounds.

Key Facts

• Researchers at Hiroshima University used CRISPR-Cas9 to edit a single enzyme gene in red perilla, resulting in green plants with boosted health benefits.
• The edited plants produced higher levels of flavones, including luteolin and rosmarinic acid, which are associated with multiple health benefits.
• Perilla contains over 400 bioactive compounds, making it a valuable resource for the food and pharmaceutical industries.
• The study was published in Frontiers in Plant Science and demonstrates the feasibility of producing nontransgenic perilla varieties with tailored metabolic profiles.
• The researchers plan to use this technology to develop high-performance perilla with enhanced value for food and pharmaceutical applications.

Key Terms

CRISPR-Cas9

A powerful tool that allows scientists to precisely modify DNA

Flavanone 3-hydroxylase (F3H)

An enzyme that plays a key role in the production of flavonoids

Bioactive compounds

Compounds with potential health benefits

Implications

This breakthrough could lead to the development of high-value crops that can be used in food and medicine. It also shows the potential of genome editing to improve plant metabolism and boost health-promoting compounds.