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Nakashima, A., von Reuss, S.H., Tasaka, H., Nomura, M., Mochizuki, S., Iijima, Y., Aoki, K., Shibata, D., Boland, W., Takabayashi, J. and Matsui, K. (2013) Traumatin- and Dinortraumatin-Containing Galactolipids in Arabidopsis: Their Formation in Tissue-Disrupted Leaves as Counterparts of Green Leaf Volatiles. The Journal of Biological Chemistry, 288, 26078-26088. http://dx.doi.org/10.1074/jbc.m113.487959

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• TITLE: Formation of (2E)-4-Hydroxy-2-nonenal and (2E)-4-Hydroxy-2-hexenal by Plant Enzymes: A Review Suggests a Role in the Physiology of Plants

  AUTHORS: Harold W. Gardner

  KEYWORDS: (3Z)-Nonenal, (3Z)-Hexenal, (2E)-4-Hydroxy-2-nonenal, (2E)-4-Hydroxy-2-hexenal, (2E)-4-Hydroperoxy-2-hexenal, Lipoxygenase, Hydroperoxide Peroxygenase, Hydroperoxide Lyase, (2E)-4-Hydroperoxy-2-Nonenal, 3, 4-Epoxynonanal, (2E)-4-Oxo-2-nonenal, Glycine max, Vica faba, Plant Pathogen

  JOURNAL NAME: Advances in Enzyme Research, Vol.4 No.2, June 8, 2016

  ABSTRACT: It is demonstrated that (3Z)-nonenal (NON) and (3Z)-hexenal (HEX) are oxidized in a cascade by lipoxygenase (LOX) and hydroperoxide peroxygenase (HP peroxygenase) into (2E)-4-hydroxy-2- nonenal (HNE) and (2E)-4-hydroxy-2-hexenal (HHE), respectively. In turn, HNE inactivates LOX terminating the cascade. The hydroxy-alkenals produced serve to inhibit plant pathogens, which initiated the cascade. In addition to LOX, other unknown oxygenases may be involved in the cascade.