TY - JOUR
T1 - Rapid effect of copper on lignin biosynthesis in soybean roots
AU - Lin, Chih Cheng
AU - Chen, Li Ming
AU - Liu, Zin Huang
N1 - Funding Information:
The funding of this work by National Science Council, Republic of China (NSC 91-2311-B-110-014) is gratefully acknowledged.
PY - 2005/3
Y1 - 2005/3
N2 - Copper (Cu)-treated soybean (Glycine max) seedling showed significant inhibition in soybean root growth, and enhancement in peroxidase and laccase activity. The inhibition in root growth correlated with the increase of H 2O2 levels, and activities of peroxidase and laccase. The enhancement of the activities of peroxidase (pI 8.9, pI 8.3, pI 7.7, pI 6.5, pI 5.6, and pI 4.4) and laccase (pI 9.2, pI 8.3, pI 7.2, pI 4.4, and pI 4.2) was accompanied by the increase of lignin contents in Cu-treated tissues. We suggested that laccases are responsible for lignin biosynthesis during the early stage in Cu-treated tissues. As the incubation time of Cu treatment was prolonged, laccases and peroxidases (POD) work cooperatively in lignin biosynthesis.
AB - Copper (Cu)-treated soybean (Glycine max) seedling showed significant inhibition in soybean root growth, and enhancement in peroxidase and laccase activity. The inhibition in root growth correlated with the increase of H 2O2 levels, and activities of peroxidase and laccase. The enhancement of the activities of peroxidase (pI 8.9, pI 8.3, pI 7.7, pI 6.5, pI 5.6, and pI 4.4) and laccase (pI 9.2, pI 8.3, pI 7.2, pI 4.4, and pI 4.2) was accompanied by the increase of lignin contents in Cu-treated tissues. We suggested that laccases are responsible for lignin biosynthesis during the early stage in Cu-treated tissues. As the incubation time of Cu treatment was prolonged, laccases and peroxidases (POD) work cooperatively in lignin biosynthesis.
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U2 - 10.1016/j.plantsci.2004.10.023
DO - 10.1016/j.plantsci.2004.10.023
M3 - Article
AN - SCOPUS:12744279483
SN - 0168-9452
VL - 168
SP - 855
EP - 861
JO - Plant Science
JF - Plant Science
IS - 3
ER -