What does toluidine blue stain in plants?
Score: 4.4/5 (32 votes) Toluidine blue (also known as tolonium chloride) is an acidophilic metachromatic dye that selectively stains acidic tissue components (sulfates, carboxylates, and phosphate radicals). ... Such staining reaction is known as metachromasy and the tissue is said to exhibit metach...