株

Total 122 entophytic bacterial strains were categorized preliminarily to 35 groups based on colony morphology. 16S rDNAs were amplified with universal primers of bacteria, all the strains could produce a single band about 1500bp. The PCR products were digested with restriction endoenzyme HaeⅢand Msp Ⅰrespectively, and the different patterns were obtained for each enzyme, by combining all the restriction patterns for the two enzymes, the 122 strains could be grouped into 39 16S rDNA genotypes. The results indicated that endophytic bacteria from oilseed rape were genetically diversity.

分离获得的122株内生细菌，根据菌落形态可以划分为35类；利用细菌通用引物对16S核糖体DNA进行扩增，获得约1.5 kb片段，分别用内切酶HaeⅢ和MspⅠ对扩增产物进行限制性酶切，产生不同的酶切图谱；根据酶切图谱聚类分析结果，所有供试菌株被归为39类，这一结果从遗传上显示油菜内生细菌类群的多样性。

The variations of expression of potassium channel genes are likely to be caused by the endogenesis hormone in tobacco after topping, and it has a direct impact on the potassium accumulation and distribution simultaneously.

打顶后烟株内源激素水平变化可能是调控钾离子通道基因表达的主要原因，而钾离子通道基因表达的变化直接影响着烟株体内钾素累积和分配。

In the first flowers, the endosperm had one set of genes from the male parent and another from the female.

最原始的花朵，胚乳有一组来自雄株的基因，和一组来自雌株的基因。

Strain 031057 was isolated from sea sand, collected from the South Sea. It was a bacterium with endospore, not movable, belonged to G+.Relative inhibition concentration of the bioactivity produced by 031057 was 100 mg/mL corresponding to hygromycin B.

菌株031057所产抗生素粗品的效价：相当于潮霉素B的100mg／mL；经海洋微生物抗稻瘟菌（卸ricularia grLSea）活性菌株的筛选24 h发酵，菌体生长达最大密度，其最大生长密度为 3.68 X 10'Cfu／InL，而其产生活性物质是在sd后达到最大值。

In this paper, Malolactic fermentation in Cabernet Sauvignon dry red wine was studied with commercial strain 31DH as the control, and with three Oenococcus oeni strains including SD-2a, SD-lb and SD-2h selected by College of Enology, Northwest Sci-Tech University of Agriculture and Forestry.

本文以商品化菌株31DH作对照，应用西北农林科技大学葡萄酒学院分离，优选的三个酒类酒球菌菌株SD-2a、SD-2h、SD-1b，对赤霞珠干红葡萄酒进行了苹果酸-乳酸发酵研究。

Xinjiang Daye'is higher than male sterile lines. 2、The pistil characters of the male sterile plants BC1-2、BC1-19、BC1-21、BC1-22、BC1-23 are improved. Hairy cells of stigma of the male sterile plants enwrap loose mastoid cells. The area of mastoid cells exterior is larger. Hairy cells of stigma of the male sterile plants are longer and abduction.Their Style is larger and wide. The cubage of the epidermal cell is larger and the arrangement of passage cells is tight.

BC1-2、BC1-19、BC1-21、BC1-22、BC1-23的雌蕊的性状得到改良，改良的杂交后代不育株的柱头毛状体细胞将中心的乳突细胞包裹较疏松，乳突细胞明显突起且裸露面积较大，毛状体细胞较原不育系MS-4的相对长而外展且分泌物较多，；改良的杂交后代不育株的花柱较原不育系的花柱宽且长，表皮细胞的体积较大，通道细胞排列较紧密。

The natural outbreaks of the enzootic disease in the duck have been recorded in Zhejiang province, and one virus, which caused duck egg laying drop was isolated from duck. The virus was identified as avian paramyxovirus-1 and designated as strain YH99V.

在浙江地区进行鸭病病因的调查过程中，从患病鸭群中分离到一株引起鸭产蛋锐减而不死亡的病毒，经鉴定该病毒属于禽副粘病毒Ⅰ型，命名为YH99V株。

All the strains isolated from the patients are capable of producing toxin which are related to its pathogenictity and epidemicity.

从所有病人中分离到的菌株均为产毒株，与致病性和流行强度有关，治疗霍乱病人应结合本地区情况，根据不同菌型选择相应的抗生素药物。

Developmengts anslysis on plant high, caulis leaves and single fruit showed with coincident disciplinarian, but distributing unlikeness. From seedling time to flourishing time, 2 importing varities's developments curve were keeping epigyny, showed that importing tomatoes varities had obvious advantage on plant high, caulis leaves and single fruit, and had bigger increase production potential.

株高、主茎叶片数和单株果数等3个测试指标的动态分析表明，规律一致但分布不同，2个进口品种的动态曲线从苗期到盛果期始终保持上位，说明进口品种在株高、主茎叶片数和单株果数3个生长发育指标上具有明显优势，植株生长旺盛，增产潜力大。

QTL with relatively high magnitude of effects might also be involved in epistasis.

F_1、F_2和F_3株高的中亲优势和超亲优势基本上均为负方向，株高优势到了F_2已趋于稳定，且明显低于亲本。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。