Used to detect and quantify β-glucuronidase (GUS) enzyme activity in plant tissues, this ELISA kit is essential in plant molecular biology and genetic engineering. It is commonly applied in studies involving reporter gene expression, where the GUS gene is fused to a promoter of interest to monitor gene expression patterns. Researchers use it to evaluate transformation efficiency in genetically modified plants, especially in model species like Arabidopsis or crop plants. The assay enables high-throughput analysis of tissue samples, providing a sensitive and specific measurement of enzyme activity. It is also useful in studying plant responses to environmental stresses, hormones, or pathogen attacks by linking GUS expression to stress-responsive promoters. The kit supports precise, colorimetric detection, making it suitable for lab-based research in agriculture, biotechnology, and functional genomics.