Nitric oxide donor CySNO promotes plant growth and alleviates drought stress in soybean via antioxidant defense and transcriptional regulation. - Khan FU; Methela NJ; Hussain A; Al Azzawi TNI; Mun BG; Lee DS; Woo YJ; Jang HS; Lee GJ; Islam MS; Kim Y; Yun BW (BMC plant biology, 2026)