The rates of maize growth and lignin biosynthesis change after root-applied chalcone |
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| Authors: | WEIJUN CHEN MIN-SOO YUN FAN DENG YASUHIRO YOGO |
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| Institution: | Upland Weed Laboratory, Department of Field Environment, National Agricultural Research Center, Tsukuba, Ibaraki, Japan and;Japan Society for the Promotion of Science, Tokyo, Japan |
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| Abstract: | The effects of root-applied chalcone at 0.15 mmol L?1 on the growth and lignin biosynthesis in maize were investigated. The contents of 4-coumarate: CoA ligase (4CL, EC 6.2.1.12) substrates in maize shoots were increased more rapidly in the samples with chalcone application than in the control and the increase occurred at ≤ 3 h after the application (HAA). The lignin content was reduced by chalcone at ≤ 6 HAA. The shoot growth was suppressed by chalcone at ≤ 9 HAA. Consequently, the results suggest that chalcone suppressed maize growth by inhibiting monolignol biosynthesis. |
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| Keywords: | 4CL substrate chalcone growth suppression lignin maize |
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