- 更多网络例句与类核体相关的网络例句 [注:此内容来源于网络,仅供参考]
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These ligands were found to be very effective in construction of quaternary carbon centers by using asymmetric allylic alkylation.
这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中,显示了较好的反应活性及对映选择性。
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The ligands were found to be effective in palladium-catalyzed asymmetric allylic alkylation to construct chiral quaternary carbon center.
这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中,显示了较好的反应活性及对映选择性。
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The thylakoid of chloroplast was lost, the chloroplast was shrinked and composed into several discontinuous parts, which suggest that the function of chloroplast was destroyed;(2) the cell wall was thickened clearly, plasmolysis was found in most of Platymanas subcordiformis cells;(3) the number of mitochondria increased, some cristae of mitochondria were dissolved;(4) the number of vacuolar increased and the size of vacuolar was not uniform, the shape was deformed;(5) the nucleus was deformed and part of the nucleus membrane was dissolved;(6) Golgi dicytosomes accompanied with a loose arrangement of cisternae and the peripheral tips of the dictyosome cisternae are not especially swollen.
叶绿体内的类囊体缺失,叶绿体皱缩,叶绿体被分离成几个不连续的部分,说明叶绿体功能被破坏;(2)细胞壁明显增厚,细胞壁与细胞膜存在质壁分离现象;(3)线粒体数目增多,部分内嵴遭破坏;(4)液泡数目增多,大小不等,形状不规则;(5)细胞核变形,核膜部分解体;(6)UV-B处理的高尔基体有一个排列松弛的潴泡,潴泡的外围顶端并没有特别膨大。
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Those may be the structure for pyrenoid photosynthesis. The starch sheath embedded the pyrenoid. The pyrenoid could be divided into three types according to their structure.
并观察到蛋白核与叶绿体基质有多处联系,蛋白核内的类囊体发生膨大,并在莱茵藻蛋白核中观察到有数个类囊体堆积,这些细微结构功能还不清楚,可能与蛋白核行使光合功能有关。
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Grew on the normal temperature, it was shown that the deposits of calcium antimonate being the indicator for Ca(superscript 2+) localization mainly concentrated within the vacuoles and intercellular spaces and there was also some Ca(superscript 2+) deposits in cell walls. But when Garyota urens L. was treated by the temperature of 2℃ for 48 h, the level of Ca(superscript 2+) increased in cytoplasm and plasma membrane, but decreased in vacuoles and intercellular spaces considerably. At the same time, the ultrastructure of chloroplasts suffered from chilling: the membrane of chloroplasts had been damaged, the layer of thylakoids was exiguous and unclear, the photosynthetic rate decreased evidently. And when Garyota urens L. was treated by the temperature of 2℃ for 120 h, the deposits of Ca(superscript 2+) mainly concentrated within the cytoplasm, nucleus and plasma membrane and there was also some Ca(superscript 2+) deposits in vacuoles, and the ultrastructure of some cells was simultaneously damaged severely: Chloroplasts structure, vacuole membrane and nuclear membrane had been damaged fully, the structure within the cell had become unclear, and the cell only have respiration.
研究结果表明,未经低温处理的董棕幼苗叶肉细胞,焦锑酸钙沉淀颗粒大量出现在液泡和细胞间隙中,细胞壁中也可见少量沉淀,而细胞基质中则看不到焦锑酸钙沉淀;经2℃ 48 h低温处理后,细胞基质和细胞膜上焦锑酸钙沉淀增加,而液泡和细胞间隙中的焦锑酸钙沉淀则显著减少,并且超微结构已初步显示出寒害的特徵,叶绿体外膜部分破损,类囊体片层稀疏且排列不规则,光合速率明显下降等;经2℃ 120 h低温处理后,细胞间隙内的焦锑酸钙沉淀极少,有的也紧贴在细胞外壁上,而细胞基质和细胞膜上则分布有非常多的焦锑酸钙沉淀,在核基质和液泡中也可见到少量的焦锑酸钙沉淀,并且超微结构遭到了显著破坏,叶绿体结构完全被破坏,核膜与液泡膜严重破损,内部结构模糊,细胞只表现为呼吸作用,不进行光合作用。
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Ultrastructurally, the chalazal border of the mature egg cell demonstrates regularly discontinuous regions in which exist a great number of single or double-membrane vesicles.
卵细胞中的质体多含淀粉粒,精细胞中的质体均不含淀粉粒。DNA荧光显示,卵细胞质中具丰富的类核并可以断定环状类核为线粒体DNA。
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E. , ACTH antagonizes the analgesia mediated byμand δ opioid receptors, but notκreceptor;(2) The antagonizing effect of ACTH on opioid analgesia is proposed to be mediated by ACTH receptors, although the latter has not been characterized;(3) A contradictory interaction on intracellular cAMP content may constitute one of the postreceptor mechanisms underlying ACTH antagonism of opioid analgesia;(4) Another proposed mechanism of the anti-opioid effect of ACTH is that ACTH can modulate opioid-induced suppression of calcium influx;(5) ACTH has been shown to induce Fos protein expression in selected areas of the rat brain including the nuclei involved in pain regulation as well as the ependyma of the third ventricle and the aqueduct.
根据以上实验结果,本论文首次提出以下论点:(1)ACTH在脊髓水平对抗阿片镇痛具有受体选择性,即ACTH可对抗μ受体和δ受体介导的镇痛,不对抗κ受体所介导的镇痛;(2)由于ACTH与阿片μ受体的肽类配体的结合位点仅有很低的亲和力,与μ受体的非肽类配体的结合位点以及δ受体无亲和力,推测ACTH是通过中枢内的ACTH受体介导发挥抗阿片效应的;(3)ACTH抗阿片作用的受体后作用机制之一是在cAMP信使通路水平与阿片发生相互作用;(4)ACTH抗阿片作用的另一受体后机制是在〓水平影响阿片的效应;(5)通过Fos蛋白的诱导揭示:ACTH可以作用于脑内多个核团,其中包括许多与痛觉调制有关的核团,推测ACTH可能通过激活这些核团的神经元而发挥其中枢效应。
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There are also two types of IPTligands in crystal 2. With two bidentate carboxylates, one acts as bridging ligandconnecting neighboring 〓 tetrahedral core along c axia to form ladderlike long chain.
且间苯二甲酸根配体可以分为两类:第一类配体中每个羧酸根连接四核锌四面体结构中的四条边并沿c轴方向连接邻近的四面体结构单元形成梯形长链。
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In this study aldylencdithiomethylene Malonic acid acts as the main coordination agents and compound iron ion have been synthesized by the means of solution, As a result ,the 1D polymer is obtained.
本论文采用常规的溶液合成方法,首先设计合成了一个以含有二硫缩烯酮结构的丙二酸类配体和过渡金属铁离子的单核配合物,再以此单核配合物作为配体设计合成了三个异多核配合物和配位聚合物。
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In prokaryotes the hereditary material is found in the nucleoid.
在原核生物遗传性材料在类核小体被找到。
- 更多网络解释与类核体相关的网络解释 [注:此内容来源于网络,仅供参考]
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nucleoid:拟核体
2.高等植物细胞特点: 原核细胞(prokaryotic cell):一般体积很小,直径为 0.2~10μm 不等,没有典型的细胞核,即没有核膜将它的遗传 物质与细胞质分开,只有一个由裸露的环状 DNA 分子构成的拟核体(nucleoid).除核糖体,类囊体外,
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nucleoid:类核体
该病毒颗粒呈六角形,也有圆形或多角形,直径70~90nm,有的单层外膜内具浓密的类核体(Nucleoid). 病毒主要发现于牡蛎卵及幼体中. 幼体的面盘、外套膜、鳃组织及围绕消化管的结缔组织均见病灶. 感染者消化腺苍灰色. 群体出现散发性死亡.
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pyrenoid:淀粉核
眼虫的体内有圆板形、薄板形或星形的色素体,所含的色素有叶绿素a和b,类胡萝卜素及叶黄素等,每色素体中藏有一淀粉核(pyrenoid). 眼虫的叶绿体为叶绿体内质网所围绕,其中的叶绿饼(grana)由3层的叶绿层(thylakoid)所叠成. 眼虫体内有明显的核,
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Ribosome:核糖体
核蛋白体RNA(ribosomal RNA)是细胞内含量最多的RNA,约占RNA总量的80%以上,是蛋白质合成机器棗核蛋白体(核糖体)(ribosome)的组成成分.核糖体蛋白(ribosmal protein,rp)有数十种,大多是分子量不大的多肽类,分布在核蛋白体大亚基的蛋白称为rpl,
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Ribosome:核蛋白体;核糖体
如下图:核蛋白体RNA(ribosomal RNA)是细胞内含量最多的RNA,约占RNA总量的80%以上,是蛋白质合成机器枣核蛋白体(核糖体)(ribosome)的组成成分. 核糖体蛋白(ribosmal protein,rp)有数十种,大多是分子量不大的多肽类,
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anaphylactoid:类过敏性
类固醇合成steroidogenesis | 类过敏性anaphylactoid | 类核小体nucleoid
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cyanophycin:蓝藻颗粒体
细胞壁成分为粘肽或肽聚糖,不含纤维素,没有由核膜包被的细胞核,也没有真正的叶绿体,只有类囊体(thytakoids),含叶绿素a,藻胆体(藻蓝素与藻红素和组蛋白结合的颗粒体),光合作用产物为蓝藻颗粒体(cyanophycin)、蓝藻淀粉(cya
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neostriatum:新纹状体
在爬行类原纹状体加附于旧纹状体的背外侧方,并且在其前方加附了新纹状体(neostriatum). 在哺乳类,原纹状体变成杏仁核(nucleus amygdalae),旧纹状体成为苍白球(globus pallidus),新纹状体发展成为尾状核(nucleus caudatus,
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perikarya:核周体
此肌层下的实质组织中有大量的电子致密细胞或称核周体(perikarya),核周体通过若干连接小管穿过表层肌和基膜与皮层相连. 核周体具有大的双层膜的胞核和复杂的内质网,以及线粒体、蛋白类晶体和脂或糖原小滴等,所以皮层实际上是一种合胞体结构,
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nucleosome:核小體 核小体
nucleoside antibiotics 核苷抗生素 核苷类抗生素 | nucleosome 核小體 核小体 | nucleotide 核苷酸 核苷酸