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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Plant Physiol Biochem. 2015 Nov 27;98:171–185. doi: 10.1016/j.plaphy.2015.11.017

Figure 1.

Figure 1

Aldonolactone oxidoreductases catalyzing the terminal step in the biosynthesis of ascorbate or its analogues in (a) plants, animals, protozoa and bacteria, (b) Penicillia and (c) yeast from their preferred substrates. ALO, d-arabinono-1,4-lactone oxidase; GalLO, l-galactono-1,4-lactone oxidase; GLDH, l-galactono-1,4-lactone dehydrogenase; GulLDH, l-gulono-1,4-lactone dehydrogenase; GulLO, l-gulono-1,4-lactone oxidase; GUO, d-gluconolactone oxidase.