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This desaturase, when expressed in Escherichia coli, desaturated stearic acid to yield oleic acid, but did not desaturate other fatty acids in E. coli. These results indicate that PvFadA is specific to stearic acid.

通过将PvfadA基因在大肠杆菌表达系统中成功表达，PvFadA可以特异性地将C18：0脂肪酸转变成C18：1脂肪酸。

The experimental results showed that under the optimum conditions the concentrations of dimethylbenzene and butylacetate were above 95% in top distillate product, and the yield of dimethylbenzene and butylacetate was 62% and 99.45,respectively.

结果表明：在最佳的工艺条件下，二甲苯和醋酸丁酯在馏出液中的含量均达到95%以上，收率分别达到62%和99.4%。

Diplodia natalensis Evans was separated from the surface of natural rotted citrus.The results of biological characteristics showed that there was significant difference in colony form,growth rate of hyphae and yield of conidia in different culture media,and the potato sucrose agar played the most important role.

从自然发病的柑橘果实表面分离出柑橘黑色蒂腐病菌，对其生物学特性研究的结果表明：不同培养基对菌落形态、菌丝生长速率及产孢量都有很大影响，其中以马铃薯蔗糖培养基菌丝生长旺盛，生长速度最快，产孢量最大。

Results The optimal conditions of discomposing Rhizoma Typhonii polysaccharide with sulfuric acid were 10% sulfuric acid, 100 ℃ for 2 h under the normal condition,and the yield of low-molecular-weight polysaccharide was 36.17%.

结果 常态条件下的硫酸降解，在酸浓度为10%、100 ℃下反应2 h最佳，此时低分子量多糖含量约为36.17%。

RESULTS: Dryopteris Crassirhizoma Nakai after being curshed has the maximum in the yield, the total phenol of carbonized products, the water extract and alcohol extract.

结果 ：生品出膏率，炭品总酚类、水浸出物、醇浸出物含量均以切碎品最高。

But taken the EKER as the standard, the results are not same as that of seed yield.

这主要是由于以上品种相配的产量并不是以吸收同量的钾为基础的。

The objective of this study was to determine the effect of different N rates on yield and quality parameters of high grade yellow seed hybrid rape. The results showed that nitrogen fertilizer had significant influence on oil content, erucic acid, glucosinolate, seed proteins of the high grade hybrid rapeseed and had no influence upon oleic acid.

以油研9号、10号为材料，研究不同氮肥施用水平对优质杂交油菜8个品质性状的影响，结果表明：氮肥对优质杂交油菜的含油率、芥酸、硫甙、种子蛋白质产生极显著的影响，对油酸影响不显著。

Results Temperature of extractiont and concentration of ethanal had significant effect on the yield of antidepressive substances from Hypericum perforatum L.

结果影响从贯叶连翘中提取抗抑郁成分的主要因素是乙醇浓度与提取温度，贯叶连翘的最佳提取工艺为A4B2C2D1，即20倍量的70％乙醇，80℃回流提取2h。

The results show that among the acetoacetonate complexes,Co_3 has the best catalytic activity.The optimum reaction conditions were as follows:0.764 mmol of Co_3,mole fraction of ethanal 10%based on the substrate,room temperature,oxygen pressure 2 MPa,reaction time 11h and solvent acetonitrile.Under these conditions,13.3%p-chlorobenzaldehyde was obtained with 15.3%conversion and 87.2%selectivity.The oxidation can also be carried out without solvent with 8.1%conversion,89.1%selectivity and 7.2%yield respectively.

在金属配合物中Co_3的催化性能最好，在其用量为0.764 mmol、乙醛用量为反应物物质的量的10%、氧气压力为2MPa时，以乙腈为反应介质，室温下反应11h，反应的转化率和选择性可达15.3%，87.2%，对氯苯甲醛收率可达13.3%；反应也可在无溶剂时进行，此时反应的转化率、选择性及醛的收率分别为：8.1%，89.1%，7.2%。

The results showed that rice straw growth and fascicular alteration interacted when water was deficient. It not only affected the transportation of nutritious substance from rhizine and leaf to kernel, but also led to the decrease of agronomic characters and yield. 4 ecotypes of rice vascular bund...

结果表明：水分不足对稻秆及秆中维管束的影响是相互的：稻秆的发育情况影响了维管束变化，同时维管束的变化影响了稻秆的发育，最终影响营养物质从根部、叶部向籽粒运输，从而使结粒数、稔实率、千粒重、产量下降。4种生态型水稻维管束系统与一次及高次枝梗数目、结粒数、千粒重等有类似的相关性，而且水分不足时反应出相同的结果，说明土壤水分对维管束系统的分化有很大的影响，水分不足将使维管束面积变小，维管束比增大，从而使产量变小。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。