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Transient Accumulation of Jasmonic Acid During the Synchronized Hypersensitive Cell Death in Tobacco mosaic virus-Infected Tobacco Leaves

¹Department of Molecular Genetics, National Institute of Agrobiological Resources, Tsukuba, Ibaraki 305-8602, Japan; ²Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan; ³Institute of Biological Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan; ⁴Core Research for Evolutional Science and Technology (CREST), Chiyoda-ku, Tokyo 101-0062, Japan

Jasmonic acid (JA) transiently accumulated during temperature-dependent synchronous necrotic lesion formation in Tobacco mosaic virus-infected tobacco leaves. The accumulation of JA was preceded by activation of a tobacco mitogen-activated protein kinase, WIPK, which functions upstream of JA in wound signal transduction pathways.