Following is the major related progresses. 1 Using RT-PCR technique, two cDNAs encoding caffeic acid O-methyltransferase (COMT) and caffeoyl Co-enzyme A O-methyltransferase (CCoAOMT) had been cloned from Chinese white poplar.

• 以下为本研究已取得的相关研究进展：1 通过RT-PCR技术，从毛白杨中克隆了木质素生物合成的两个相关酶的cDNAs，它们分别为咖啡酸甲基转移酶（caffeic acid O-methyltransferase，COMT）和咖啡酰CoA甲基转移酶（caffeoyl Co-enzyme A O-methyltransferase，CCoAOMT）。