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Sorghum, sudenese grass and orchard-grass (Dactylis glomerata L.), and the application of MeJA for the flowering synchronization of male sterile and restorer lines was investigated in seed production of hybrid rice.

外源MeJA强烈诱导稻、高粱、苏丹草和果园草等禾本科植物的颖花开放:早稻297的离体穗在经40μmol/L,400μmol/L和4mmol/L的MeJA溶液浸穗 2min处理后80min,在对照颖花开放尚未启动时,平均每穗颖花开放率分别达 7.5%,22.7%和44.5%;杂交稻安湘S-株173的连穗经4mmol/L的MeJA溶液浸穗2min处理后80min,开颖率达32.5%;不育系也能响应MeJA的诱导,经1mmol/L MeJA处理后,80min时开颖率达42.9±6.1%。

Through the experiment results, in different phonation model, analysis the properties of glottal vocal efficiency, vocal folds vibration, and voice source.

我们在对嗓音—呼吸系统进行自动分割与分段特征表达的目标指引下,建立了具有国内一流水平的嗓音声学实验室;从概念上对嗓音—呼吸系统重新划分,以声门为中心分别建立去耦合和弱耦合条件下的嗓音—呼吸系统和肺胸系统数学模型;采用离体犬喉作为声带振动的物理模型,对数学模型进行完善与证实;采用盲解卷技术在去耦合和弱耦合条件下,提取上下声道传递函数、嗓音源和发声效率,研究上下声道去耦合和弱耦合条件下不同发声方式与状态对发声效率的影响。

It was concluded that the effects of administration of YT by ip and endermosis is contrary to that of administration by po.The Neostigmine-induced hyperperistalsis of the small intestine was inhibited and the inhibitory effect of Atropine enhanced by ip and sc administration of YT suggesting the mechanism of YT involved the antagonism of Ach. But the contraction of isolated rabbit ileum was not inhibited by YT.

对于羊蹄叶水提取物抗腹泻作用机制的研究表明,腹腔注射、皮肤给药YT可明显抑制新斯的明所致小鼠小肠推进功能亢进,也可加强阿托品抑制小鼠小肠推进运动的作用,从而表明YT的作用机制可能与Ach有关,但家兔小肠离体实验表明YT对Ach所致家兔小肠收缩无明显的抑制作用。

The model of partial hepatectomy (68%) after partial hepatic is chemia (32%) was adopted to explore the influence of labiatae on the remnant liver after ischemia in rats.

随着肝脏外科的发展,较复杂的肝切除术及严重肝创伤的处理等常需在暂时断入肝血流的情况下进行,肝移植时离体供肝也伴有一定时间的缺血。

That GER cells which are likely hair cell progenitors could be cultured in vitro and generate stereociliary bundle-like structure when forced to express Hath1 suggests that the misexpression of Hath1 probably can induce the predifferentiation of pure hair cell progenitors into hair cells in vitro.

GER细胞作为毛细胞前体细胞可以实现体外原代培养,在Hath1基因重表达情况下,部分细胞的表面可见不成熟的纤毛样结构,提示Hath1基因也许可以诱导离体培养下的纯的毛细胞前体细胞向毛细胞的初步分化。

We have, therefore, investigated the direct effects of adiponectin on primary cultures of osteoblastic and osteoclastic cells in vitro and determined its integrated effects in vivo by characterizing the bone phenotype of adiponectin-deficient mice.

为此,我们研究了脂联素对离体培养的原代成骨细胞和破骨细胞的直接影响,并通过对脂联素缺陷小鼠的骨基因表型的研究明确其在体内的综合作用。

Objective To observe the effects of urapidil,phentolamine,glyceryl trinitrate or phenylephdrinum on the isolated tracheal smooth muscle in rabbit.Methods KCl,Ach and electrical stimulation were used to induce the contraction of the isolated rabbit tracheal smooth muscle.

目的 观察常用降压药和升压药对气管平滑肌张力的影响,探讨其作用机制方法观察不同浓度乌拉地尔对氯化钾、乙酰胆碱、电脉冲三刺激因素诱发的兔离体气管平滑肌收缩力变化的影响;观察酚妥拉明、去氧肾上腺素和硝酸甘油对电刺激诱发的气管平滑肌收缩力的影响。

Objective:To assess the security and effectiveness of the mixture of Suo Quan Gu Niao through trial of acute toxicity,effects of contractile activity of bladder smooth muscle and sphincter urethrae in vitro and clinical research. In order to develop the new traditional chinese medicine to treat Stress Urinary Incontinence on the base of this study .

目的:通过对缩泉固尿合剂的急性毒性试验与对家兔离体膀胱平滑肌和尿道括约肌收缩活动影响的观察及临床预试,初步评价该药的安全性及有效性,为开发治疗压力性尿失禁的中药新药打下坚实的基础。

Results AE from CM had vasodilating effect on the contracti on of mesentery blood capillary in guinea pigs and the contraction of rat thoracic aortic ring induced by l0μmol/L phenylephrine, even under the condition of pre-treating with glibenclamide (1μmol/L) or propranolol (3μmol/L). When the endothelium of the rat thoracic aortic ring was removed, AE from CM had not vasodilating effect hut constrictive effect. AE from CM could also increase the contents of NO, NOS and cNOS in the aortic tissue and had no obvious effect on the NO content in plasma and iNOS in aortic tissue of rats.

结果 桑白皮丙酮提取物有抑制去甲肾上腺素收缩豚鼠肠系膜微血管的作用,抑制苯肾上腺素(10μmol/L)收缩离体大鼠胸主动脉环的作用,预加优降糖或普蔡洛尔(3μmol/L)后仍然有松弛作用;大鼠胸主动脉环去内皮后药物无松弛作用,反而起收缩作用;显著升高血管的NO和NOS、cNOS含量,对大鼠血浆的NO和血管iNOS的含量影响不大。

Using whole-cell patch clamp recording, we observed multiple distinct ATPinduced currents in isolated DRG neurons of adult rats, each with unique desensitizing kinetics.β,γ-meATP, agonist of P2X1 receptor also induced fast inactivating and slowly desensitization current in small DRG neurons. PDBu, a selective agonist for PKC, decreased the P2X receptor-mediated inward currents in a dose-dependent manner, while SNP, nitric oxide donor, potentiated the ATP-evoked current through NO-cGMP pathway.

全细胞膜片钳记录观察到,在成年鼠离体DRG伤害性感受相关的小直径神经元上,ATP可诱导出多种具不同反应型式及脱敏动力学的由P2X受体介导的内向流;P2X1受体激动剂β,γ-meATP亦可诱导出快脱敏及慢脱敏两种型式的内向流;PKC激动剂可剂量依赖地削弱P2X受体介导的内向流,而NO供体硝普钠可通过NO-cGMP通途显著易化ATP介导的内向流。

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