Root Growth and Enzymes Related to the Lignification of Maize Seedlings Exposed to the Allelochemical L-DOPA

Table 2

Changes in the levels of tyrosine and phenylalanine of maize seedlings treated with L-DOPA for 24 h.

L-DOPA (mM)	Tyrosine; (𝜇mol g^−1 fresh weight)	Phenylalanine; (𝜇mol g^−1fresh weight)
0	7.9±0.152	2.18±0.033
0.5	9.4±0.115^∗	3.18±0.174^∗

Means (𝑁 = 3 ± SE) significantly smaller than the experiment control (Student’s 𝑡 test) are marked*.