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. 2008 Sep 25;105(39):15190–15195. doi: 10.1073/pnas.0806324105

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© 2008 by The National Academy of Sciences of the USA

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Fig. 2. — UV absorbance spectra of LC-MS analysis. Extracts from 5-day-old seedlings preincubated with the indicated compounds were analyzed by LC-MS and compared with a DMSO control and standards, as described in SI Materials and Methods. The mass and retention time of the extracted compounds correspond to the following standards: 602, (m/z) = 304.8 ([M-H]+), with a retention time of 21 min; 533, (m/z) = 311 ([M-H]+), with a retention time of 20 min; 2,4-D, (m/z) = 219 ([M-H]-), with a retention time of 14.8 min; and 602-UC, (m/z) = 213.5 ([M-H]-), with a retention time of 16.2 min.