Physiological and transcriptomic analyses reveal the effect of exogenous chitosan oligosaccharides on ‘Harumi’ fruit resistance to Penicillium digitatum - Mingfei Zhang; Xu Zou; Jiahuan Liu; Yuping Wang; Yuming Ren; Bin Peng; Huan Liu; Fa He; Bo Xiong; Ling Liao; Siya He; Guochao Sun; et al. (Food Control, 2026)