| 1. | Like organisms, viruses have variants, generally called strains .
与其他生物一样，病毒也有变种，一般称之为株系。 |
| 2. | Some virulent strains of pvx cause rugosity go the leaves even crinkling, called pvx crinkle .
PVX的有些强毒株系引起叶子的粗缩甚至皱缩，叫做PVX皱缩。 |
| 3. | New variants of some plant viruses have been produced artificially in the laboratory by treating pure virus strains with mutagens .
用亚硝酸之类的诱变处理纯病毒株系，能在实验室内人为地使有些植物病毒产生新变种。 |
| 4. | High - level expression of bydv gav coat protein gene in escherichia coli
株系外壳蛋白基因在大肠杆菌中的高效表达 |
| 5. | Objective to detect the mix infection of a single rna vival species
摘要目的检测发生在同一rna病毒不同株系的混合感染1例。 |
| 6. | Some virulent strains of pvx cause rugosity go the leaves even crinkling , called pvx crinkle
Pvx的有些强毒株系引起叶子的粗缩甚至皱缩，叫做pvx皱缩。 |
| 7. | Most of the endophyte strains showed inhibition to drechslera sp . and rhizoctonia solani on pda medium
Implicatum的7个株系对旗草主要病原真菌德斯霉( drechslerasp |
| 8. | Patted dry on the filter paper , transferred to ms3 medium and co - cultured for 3 - 4 days in darkness
用eha105 ( pbinc川+ )转化的纯白色矮牵牛，所得转化株系命名为wc “卜。 |
| 9. | Studies on the introduction of the cecropin d gene into eucalyptus urophylla to breed the resistant varieties to pseudomonas solanacearum
基因转化桉树培育抗青枯病株系的研究 |
| 10. | The vde enzyme activity in a29 transgenic plant is 3 . 2 units , amounting for 45 . 7 percent of the wild - type tobacco , indicating that vde was inhibited
从t ；代转基因植株中筛选出抑制程度较强的一个株系a29 ， soul 。 |
