Fig. 1From: Comparative transcriptome combined with metabolome analyses revealed key factors involved in nitric oxide (NO)-regulated cadmium stress adaptation in tall fescueThe NO content in tall fescue roots. Tall fescue roots were loaded with the sensitive fluorescent dye DAF-FM DA. a and b represent bright and fluorescent field, respectively. The lower corner of each photo has a scale bar in 50 μm lengthBack to article page