Selenium hyperaccumulator plant Cardamine enshiensis: from discovery to application

Area of Science:

• Agricultural Science
• Environmental Science
• Plant Science

Background:

• Selenium (Se) is an essential trace element crucial for animal and human health.
• Selenium deficiency is a global health concern, driving interest in biofortification strategies.
• Enshi, China, is recognized for its selenium-rich environment, fostering research into selenium hyperaccumulating plants.

Purpose of the Study:

• To review the discovery and underlying mechanisms of selenium tolerance and hyperaccumulation in Cardamine enshiensis (C. enshiensis).
• To highlight the potential applications of C. enshiensis in selenium biofortification agriculture, animal husbandry, and human health.
• To underscore the economic significance of selenium-rich industries in Enshi.

Main Methods:

• Literature review focusing on studies related to Cardamine enshiensis and selenium.
• Analysis of research on selenium tolerance and hyperaccumulation mechanisms in plants.
• Exploration of C. enshiensis's approval as a food source and its economic impact.

Main Results:

• Cardamine enshiensis is a newly discovered selenium hyperaccumulator native to Enshi, China.
• The plant exhibits significant tolerance and accumulation of selenium, making it a valuable resource.
• C. enshiensis has been approved as a novel food source, contributing to a multi-billion RMB industry.

Conclusions:

• C. enshiensis presents a promising avenue for selenium biofortification in agriculture due to its hyperaccumulating properties.
• Understanding its selenium tolerance mechanisms can inform strategies for enhancing crop selenium content.
• The plant holds potential for improving human and animal selenium nutrition and supporting local economies.