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Evolutionarily distinct carotenoid cleavage dioxygenases are responsible for crocetin production in Buddleja davidii, Ahrazem, O., Diretto Gianfranco, Argandoña J., Rubio-Moraga A., Julve J.M., Orzáez D., Granell A., and Gomez-Gomez L. , Journal of Experimental Botany, Volume 68, Number 16, p.4663-4677, (2017)

Novel carotenoid cleavage dioxygenase catalyzes the first dedicated step in saffron crocin biosynthesis, Frusciante, Sarah, Diretto Gianfranco, Bruno M., Ferrante Paola, Pietrella M., Prado-Cabrero A., Rubio-Moraga A., Beyer P., Gomez-Gomez L., Al-Babili S., et al. , Proceedings of the National Academy of Sciences of the United States of America, Volume 111, Number 33, p.12246-12251, (2014)