| 1. | Putatively transformed shoots all attained from torenia fournieri lind
分别得到了在选择培养基上生长的抗性植株。 |
| 2. | Edible gelatine . detection of coliforms . 30 degrees c culture method on liquid selective medium
食用明胶.大肠杆菌的检测.在30时液体选择培养基的培养法 |
| 3. | Edible gelatine . determination of fecal coliforms . 44 , 5 degrees c culture method on liquid selective medium
食用明胶.粪便中大肠杆菌的检测.在44 . 5时液体选择培养基的培养法 |
| 4. | After 4 times selected culture by ppt , 347 resistant calli were obtained . the ppt resistant calli were transferred to ms medium with 2 . 0 mg / l 6 - ba , 0 . 1 mg / l naa for regeneration
0mg l +蔗糖30g l的选择培养基中进行选择培养，每10天继代1次，连续选择4次，共得到347块抗性愈伤组织。 |
| 5. | A few mutants were found on the plate containing nitrobenzene selective medium . their colony appearances have some difference from the wild strain . some evidences show that their growth characteristics on the selective medium are related to the plasmids harbored in their cells
对菌株的自发突变株的研究表明，这些菌株在硝基苯选择培养基上的生长特性是与它们细胞中所含质粒的特性相关的。 |
| 6. | To determine the plasmid function , the experiment is done to cure the plasmid from the cell , which will cause some change on the strain physiology . the result show that after curing the plasmid , the strain cell cannot grow on the selective medium containing nitrobenzene
为了考察质粒的功能，进行了质粒消除实验，结果表明，质粒消除后的菌株细胞难以在硝基苯选择培养基上生长，表明这个质粒是与硝基苯的降解代谢过程有关的。 |
| 7. | A gene library of psedomonas fluorescens g2 was constructed in the cosmid vector pla2917 using e . coli jm109 as the host strain . two recombinants , pgr3 and pgr7 , which can confer glyphosate resistance ofe . coli jm109 were identified from the selective medium containing 10mm glyphosate
以粘粒pla2917为载体、大肠杆菌jm109为受体菌构建荧光假单胞菌g2的基因组文库，在含有10mm草甘膦的固体选择培养基上筛选出两个耐受克隆pgr3和pgr7 ，插入片段分别为7kb和11kb 。 |
| 8. | A mutant probably harboring more plasmids can grow better on nitrobenzene selective medium than other strains . the plasmid harbored in this mutant is also a few kb smaller than others . so a probability is supposed that a certain plasmid dna fragment deletion made the number of plasmid copy change , which affected the mutant growth on the selective medium
一株质粒含量较高的突变株在硝基苯选择培养基中的生长情况要好于其它菌株，其所含的质粒也略小一些，因此我们推测，某个质粒片段的缺失造成了质粒拷贝数的变化，从而影响了它的生长特性。 |
