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. 2016 Feb 26;7:229. doi: 10.3389/fpls.2016.00229

FIGURE 1.

FIGURE 1

Schematic overview of the signaling networks involved in the NO- and ROS-induced priming against salininy and drought stress in citrus plants (see text for details). ABA, abscisic acid; AOX, alternative oxidase; APX, ascorbate peroxidise; CAT, catalase; Cys, cysteine; DAO, diamine oxidase; DHAR, dehydroascorbate reductase; GR, glutathione reductase; GSNOR, S-nitrosoglutathione reductase; H2S, hydrogen sulfide; LCD, L-cysteine desulfhydrase; MAPKs, mitogen-activated protein kinases; MDHAR, monodehydroascorbate reductase; NAD(P)H, mitochondrial NAD(P)H dehydrogenases; NCED, 9-cis-epoxycarotenoid dioxygenase; NiR, nitrite reductase; NR, nitrate reductase; PAO, polyamine oxidase; PTMs, posttranslational modifications; PAs, polyamines; SOD, superoxide dismutase; Tyr, tyrosine; XO, xanthine oxidoreductase.