Researchers used a virus-based CRISPR system to precisely edit the gatekeeper enzyme HMGR in petunias and lettuce, effectively unlocking a natural metabolic “brake” that restricts scent and nutrient production. By fine-tuning this regulatory control rather than disabling the gene entirely, they enabled plants to channel more energy into producing aromatic compounds and health-promoting antioxidants. The result was more vigorous growth, stronger floral fragrance, and enhanced nutritional value. Importantly, because no foreign DNA was introduced, this transgene-free approach offers a powerful new framework for developing higher-quality, nutrient-enriched crops through precision gene editing.

The widespread presence of microplastics (MPs) in aquatic ecosystems has negative impacts on human and marine life. However, the traditional MP detection methods are time-consuming and limited by detection thresholds. Now, researchers have revealed that electrochemical sensors based on metal oxide electrodes are a suitable alternative for MP detection. They highlight that metal oxides offer superior properties such as high surface area, tunable conductivity, and chemical stability, making them highly sensitive, affordable, and applicable in real-time.