The rates of maize growth and lignin biosynthesis change after root-applied chalcone
2005
Chen, W.(National Agricultural Research Center, Tsukuba, Ibaraki (Japan)) | Yun, M.S. | Deng, F. | Yogo, Y.
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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