螺旋环

The grazing of micrzooplankton,especially heterotrophic dinoflagellate was one of the important factors of diatom bloom decline.

微型浮游动物的摄食，尤其是异养的螺旋环沟藻的摄食，是水华消亡的主要原因之一。

The analysis results show that there is a relationship between the inhibitory potency and the stability of corresponding helix.

另外，研究结果表明多肽螺旋环的稳定性和抑制剂的活性具有相关性。

The mathematical model of ruled helicoids on torus is constructed and two expression methods of ruled helicoids are discussed.

基于圆柱螺旋面和圆环螺旋线的形成原理，构建了圆环直纹螺旋面的数学模型，讨论了圆环直纹螺旋面的两种表示方法。

The deterioration of these reactions at both ends and the middle of TM Ⅵ and the location of these amino acids at trisection of the helix wheel suggest their roles in maintaining the stability of conformation.

这些突变株在第六穿膜区的位置恰巧分布在两端与中间，且其在整各螺旋环柱的分布均分三区。

A new method, step-search-diameter ,is presented to calculate the diameter of undirected double-loop networks G.

提出新的无向双环网络G的直径求解法———分步法；并得到一种新的直观图———螺旋环，研究了螺旋环的性质；给出了无向双环网络的直径d的显式公式；给出了N，s都固定的直径算法；在N固定，且2≤r

A whorl of leaves growing around a stem.

围绕茎干生长的叶子的螺旋环。

In this paper,- and (5)-2,2'-diethynyl-1,1'-binaphthyl with highly stable chiral configurations were employed as structural templates, and a new type of helical cyclophane compounds-3 and-3 were synthesized in enantiopure form by the introduction of benzyl sulfone through Sonogashira coupling reaction, followed by the treatment of disulfone with lithium diisopropylamide.

基於2，2'-二取代的联萘衍生物在手性构型上高度稳定的特点，分别从光学活性的-和-2，2'-二乙炔基-1，1'-联萘结构模板出发，通过Sonogashira偶连反应导入苄基碸，然后用二异丙基氨基锂处理制得的联萘二碸成功地合成了一种新的螺旋环芳分子－对映异构体-3和-3。

In this study, 105 TDFs were in silico mapped in the rice high-density linkage map. Nineteen TDFs were mapped to the quantitative trait loci regions for root growth under water-limited conditions in, at least, two of three rice populations derived from three crosses with the same parent of Azucena (Bala×Azucena, IR64×Azucena and IR1552×Azucena). Four of 19 genes (T37, L16, T17 and T7) were mapped based a RIL population of IR1552×Azucena by southern blot analysis. Five genes encode putative or hypothetical protein. Other 14 genes were similar with known genes in databases including expansin (OsEXP2), late embryogenesis-abundant gene , an SR-related protein essential for spliceosome assembly (SART1), autophagocytosis protein , bHLH protein, fruit-ripening protein similar to ASR, nickel-binding protein 2A, DNA-binding protein, pyruvate dehydrogenase kinase , stomatin-like protein, SR1 induced by sucrose starvation, vacuolar protein sorting protein (VSP33a), gibberellin action negative regulator and retroelement.

根据核苷酸序列将105个基因电子定位到水稻的高密度连锁图谱上，其中19个差异表达基因定位在Bala×Azucena、IR64×Azucena和IR1552×Azucena中至少两个群体共同的与根生长相关的QTLs区间，并用Southern杂交将其中的4个定位到IR1552×Azucena群体遗传连锁图谱相应的位点上。19个基因中的5个编码推断的未知功能蛋白质，其余14个编码已知功能蛋白，分别为膨胀素（Os-EXP2）、胚胎后期丰富蛋白、剪接体安装必需的SR相关蛋白（SART1）、自吞噬蛋白、碱性螺旋-环-螺旋转录因子、与ASR相似的果实成熟蛋白、镍结合蛋白、DNA结合蛋白、丙酮酸脱氢酶激酶、stomatins类蛋白、蔗糖调节蛋白SR1、液泡蛋白分类蛋白（VSP33a）、GA负调节因子、逆转座元件。

A, and H319A exhibited an injury of proton translocation ability and show a decrease in the coupling efficiency but not PPi hydrolysis. They also locate at one face of the helix wheel, implicating their involvement in proton translocation.

由此猜测，这三区具有维持稳定结构的功能。A305S， V308A， A310S， G316A与H319A仍保有活性但降低了偶合效率，且位在螺旋环柱的同一面，暗示这些胺基酸可能与质子运送有关。

Hes5 gene, a key downstream mediators of Notch signaling that functions by inhibiting the expression or activity of positively acting bHLH factors, is a member of bHLH transcription factor family which acts as a positive-negative transcriptional regulators which is expressed transiently in different stages in cells growth and differentiation and orchestrate those precisely timed and progressive maturational events underlying cell fate decisions according to orders of time and spatial and coordinated the function of majority of signaling transduction on target genes to influence the proliferation and differentiation.

Hes5是Notch通路转导途径的一个关键的下游信号分子，通过抑制正调控bHLH因子的表达和活性来发挥作用，隶属于碱性螺旋-环区-螺旋转录因子家族。该家族形成一个正负转录调节器，按时空顺序短暂表达于细胞发育分化的不同阶段，介导和协调多种信号系统对大量靶基因的作用，影响细胞增殖、分化。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失