| 1. | Breeding of mutant strain for glulamate prodaction
谷氨酸生产菌的选育 |
| 2. | Nutrient value of protein from spores of agaricus blazei mutant strain j
3孢子中蛋白质的营养价值评价 |
| 3. | Breeding of highly productive - linolenic acid mutant strain of mortierella ramanniance
亚麻酸高产突变株的选育 |
| 4. | Breeding of mutant strain for glulamate production by changing its metabolic passway
通过改变代谢途径选育谷氨酸生产菌株 |
| 5. | Some mutant strains carrying the destroyed genes of positives had been constructed and identified by pcr
用单交换的方法构建部分二倍体突变株，对阳性因子进行功能分析。 |
| 6. | ( 4 ) expressional plasmids containing the cloned pha synthase genes were constructed and transformed into wild type e . coli strains and e . coli fadb deleted mutant strain km32b
（ 4 ）成功构建了含有上述型pha合酶基因的表达载体，并将它们分别转入野生型大肠杆菌及脂肪酸降解fqdb缺夫突变株km32b中进行表达。 |
| 7. | Through a series of mutagen tests , a mutant strain of monascus spp ( m 12 - 69 ) from ml2 was acquired , which can produce much higher monacolin k than m12 , and almost same citrinin level as m12
以之为出发菌株，通过诱变筛选，获得一株monacolink产率有明显提高而桔霉素产率仅为0 . 13ng g ( elisa )的突变株，编号为m12 - 69 。 |
| 8. | Lividans mutant strains la1 and la2 generated by gene replacement in dndb and dndc were obtained respectively . both of these two mutants lost dnd phenotype because of disruption of a respective dnd gene
首先利用基因置换实验获得分别在dndb 、 dndc基因内部发生基因中断的突变菌株la1利la2 ，并通过southern杂交进行了验证。 |
| 9. | By treatment with both ultraviolet rays and licl , a mutant strain b . s . lx - 19 with high yield of heparinase and stability was obtained , whose enzyme activity increased by 40 % over strain lx - 10
Lx ? 19 ，其肝素酶产量较出发菌株提高了40 。通过单因素条件研究，发现n源和c源对酶产量影响较大，接种量以10 ，初始ph6 . 5 ，种龄12h为宜。 |
| 10. | Studies on morphological observation and categorization showed that there were several differences between the strain m12 and the mutant strain m12 - 69 , but they both belong to monascus pilosus sato , according to hawksworth and pitt
第四，根据hawkswo曲和pitt关于红曲霉的分类方法，对m12及m12一69的培养物进行了形态观察及分类鉴定。 |
