期刊
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
卷 73, 期 9, 页码 1962-1970出版社
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.90119
关键词
wound induced systemic acquired resistance; jasmonic acid; tuberonic acid; tuberonic acid glucoside; Nicotiana tabacum
In plants, the mobile signal needed for wound-induced systemic acquired resistance (WSR) has been elusive. The signal compound involved in WSR is supposed to be JA or its derivatives. On the basis of kinetic study of the accumulation of JA or its derivatives, it was discovered that JA, JA-IIe, tuberonic acid (TA, 12-OH epi-JA), and tuberonic acid glucoside (TAG) accumulated in systemic tissues in response to mechanical wounding stress in the tobacco plant (Nicotiana tabacum). Attempts to recover deuterium-labeled JA in systemic leaves after feeding the wounded leaves with deuterium-labeled JA were successfully done. It was also found that the translocated deuterium-labeled JA was metabolized to TA in systemic leaves under feeding of deuterium-labeled JA to the wounding leaves.
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