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取水杉(Metasequoia glyptostroboides Hu et cheng)嫩茎茎段,经无菌操作接种于事先准备好了的无菌培养基上.接种的外植体,在无激素的MS培养基上表现良好.接种一星期后侧芽开始萌动、抽生.除污染外萌发率可达100%.三星期后绿苗高可达2厘米左右,最高达5厘米以上.当无根绿苗转入到1/2MS付加萘乙酸(NAA)O～1毫克/升的生根培养基上,半个月后根系陆续开始分化.根的分化随试验组合的不同,差异甚大,有的可达100%.
Metasequoia glyptostroboides Hu et cheng stem section of tender stems, aseptic operation inoculated in a prepared sterile medium inoculated explants, hormone-free MS medium performed well inoculation After the week began to germinate lateral buds, pumping. In addition to pollution germination rate up to 100%. Three weeks after the green seedlings up to about 2 cm, up to 5 cm or more. When the rootless green seedlings transferred to 1 / 2MS pay plus naphthalene After half an month, root system gradually began to differentiate with NAA 0 ~ 1 mg / L. The differentiation of roots varied greatly with the combination of test, some up to 100%.