起重要作用

Magnesium( Mg2+) is the most abundant divalent cation in plant cells and plays a critical role in many physiological processes in plants.

摘 要：Mg2+是植物细胞中含量最丰富的二价阳离子，在植物体内起重要作用。

The numerical results show that the ocean models in diurnal band are more stable than those in semidiurnal band, and the correction of the change in tidal height plays a significant role in determining accurately the phase lag of the tidal gravity.

数值结果说明周日频段内的海潮模型要比半日频段内的模型更加稳定，实施验潮站潮位高变化改正对精密确定重力固体潮相位滞后起重要作用。

They are not only involved in the process of fungal development and differentiation, such as supplying nutrition, for the growth of mycelium, attaching themselves to the morphosis and alteration of the cell wall of hyphae, as well as taking part in autolysis of filamentous fungi, but also show an important role in the process of pathogenesis including touching and cling on to the cell wall o.

1，3-葡聚糖酶(β-1，3-glucanase)是一类能够水解β-1，3-葡萄糖苷键的酶，普遍存在于多种真菌中，它们不仅在真菌生长发育起重要作用，如为菌丝体生长提供营养、参与菌丝体细胞壁的形态建成和构象的改变、参与菌丝体自溶等，而且在病原菌入侵寄主植物与致病的过程中扮演着重要角色，如：参与接触和吸附寄主细胞壁；破坏包围病原菌入侵结构的乳突。

The capacity of endothelial cells to recognize and migrate in response to the extracellular matrix depends on one or more members of the integrin family of cell adhesion receptors.

血管新生的过程依赖于参与血管生成的细胞因子和细胞粘附的协同作用，整合素是一组细胞表面受体，介导细胞-细胞间、细胞-基质间的相互作用，对内皮细胞的粘附、迁移、增殖起重要作用。

The three isolates have four specific replacements in 87, 88, 95, and 119 in SI hypervariable region, and a unique cleavage site R-X-R-T-G-R in 3 terminal region. These data may be valuable for investigation of molecular basis of the serotyping, tissue tropism and pathogenicity of these virus isolates.

由于SI蛋白序列99－12川立氨基酸之间的序列可能对病毒的致病性起重要作用，SI蛋白5，高变区（56－69；117－131）与中和表位和血清型密切相关，这些区域在IBV血清型和基因型间起联系作用。

The results demonstrated that esterase-mediated metabolism plays an important role in phoxim resistance in the BK77-R strain, and enhanced detoxification mediated by both esterases and oxidases is an important factor conferring broad cross-resistance to different classes of insecticides.

上述结果表明，酯酶解毒代谢在棉铃虫BK77-R品系对辛硫磷的抗性中起重要作用，酯酶和多功能氧化酶解毒作用增强是该抗性品系对不同类型药剂产生交互抗性的重要原因。

The expression of NF-κB protein is related to progression of the advanced gastric carcinoma. The re-expression of E-cadherin and β-catenin in cancer cells of metastatic lymph nodes from advanced gastric carcinoma existed, and which was closely correlated with tumor grade, may play an important role in the re-growth of cancer cells in metastatic foci.

NF-κB的表达与进展期胃癌的发展过程密切相关，E-cad及β-catenin在转移淋巴结中的再表达是进展胃癌发生的重要事件，二者协同发挥作用，并对癌细胞在转移灶中的聚集生长起重要作用，联合评价其功能具有更重要的临床意义。

The re-expression of α-and β-catenin in cancerous cells of metastatic lymph nodes from advanced gastric carcinoma is existent. and which correlates with tumor grade may play an important role in the re-growth of cancer cells in metastatic foci.

及β-catenin在转移淋巴结中的再表达是进展期胃癌发生的重要事件，二者协同发挥作用，并对癌细胞在转移灶中的聚集生长起重要作用，联合评价其功能具有更重要临床意义。

Corresponding to the long-lasting El Nio event, cyclonic anomalous circulation over the eastern North Pacific weakens slowly and anticyclonic anomalous circulation over the western North Pacific strengthens slowly at 850 hPa. Therefore the tropical Pacific westerly anomaly keeps long. The anomalous positive velocity potential over the western South Pacific at 200 hPa, which is related to the strong Australian winter monsoon, helps a long duration of El Nio. Corresponding to the short-lasting El Nio, the anomalous positive velocity potential over the western Pacific at 200 hPa moves eastward quickly and results in the vanishing of El Nio event.

还发现对于持续时间较长的El Nio事件，东北太平洋上850hPa异常气旋性环流减弱和西北太平洋上异常反气旋性环流增强较慢，因此赤道太平洋异常西风维持的时间也较长，而与澳大利亚冬季风加强相关联的南半球西太平洋的速度势正距平的维持，对El Nio的持续也起一定作用；对应持续时间较短的El Nio事件，西太平洋上200hPa速度势正距平的迅速东移，对El Nio的迅速消亡起重要作用。

BACKGROUND: The HOX gene family is a highly conserved transcription factor family, which affects the formation of basic axis and secondary axis during embryonic development, at the same time, it plays a pivotal role in the development of the central nervous system, axial skeleton, stomach intestine, urogenital system and external genitalia.

背景：HOX基因家族是一个高度保守的转录因子家族，该家族在胚胎发育阶段基本体轴和次级体轴的形成中起作用，同时在中枢神经系统、中轴骨、胃肠和泌尿生殖系及外生殖器和肢体的发育中起重要作用。

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％。