摘要
本试验评估了赤霉酸生产菌株“４３０３”的生产性能，并以此菌株为出发菌株，进行了紫外线诱变育种，选出了一株赤霉酸高产菌株ＵＦ４５６。通过试验发现“４３０３”平均产量为１０３６±１２９ｍｇ／Ｌ，变异系数为０．１２，紫外线诱变对菌株产赤霉酸分布呈均匀状态。将“４３０３”与ＵＦ４５６进行赤霉酸产势比较，结果表明：ＵＦ４５６菌株平均产量较“４３０３”高２８．８％，产势高２０％。
The Gibbereilic arid yielding strain ' 4303' was used in the experiment, and its characteristics were evaluated. One high - yielding strain UF456 was obtained. which resulted from four minutes UV radiation of strain ' 4303'. The average yield of GA3 produced by strain ' 4303:was 1056 + 129mg/L, and the yield distribution of GA3 produced by strain ' 4303' resulted from UV radiation was Uniform Mutagenic Distribution. The average yield of GA3 produced by UF456 and its productive capacity were increased by 28. 8 and 20. 0 Percent,respectively.
出处
《生物技术》
CAS
CSCD
1994年第1期34-36,14,共4页
Biotechnology
关键词
赤霉酸
发酵
菌种
育种
Gibberellic acid
Mutation
Fermentation
