Fig. 1From: Nitrogen deficiency regulates premature senescence by modulating flag leaf function, ROS homeostasis, and intercellular sugar concentration in rice during grain fillingEffect of different nitrogen supplies on chloroplast ultrastructure between wildtype (A–C) and psf mutant (D–F). Chloroplast structure and thylakoid organization in flag leave at 15 days after anthesis were analyzed by transmission electron microscopy (TEM). A, D HN; B, E MN; and C, F LNBack to article page