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nucleolus

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nucleolus n.(pl. -li ) 【生物學】(細胞核內的)核仁。

n. (pl. -li ) 【生物學】(細胞核內的)核仁。 “accessory nucleolus“ 中文翻譯：   副核仁“chromatin nucleolus“ 中文翻譯：   染色質核仁; 染色質網“chronatin nucleolus“ 中文翻譯：   染色質核仁“cleavage nucleolus“ 中文翻譯：   卵裂核仁“extrachromosomal nucleolus“ 中文翻譯：   染色體外核仁“false nucleolus“ 中文翻譯：   假核仁; 染色質核仁“nucleinic nucleolus“ 中文翻譯：   染色質核仁“nucleolonema of nucleolus“ 中文翻譯：   核仁的核仁絲“nucleolus crisp“ 中文翻譯：   桃酥“nucleolus organizer“ 中文翻譯：   核仁形成體; 核仁組成中心“nucleolus vacuole“ 中文翻譯：   核仁液泡“nucleolus, nucleoli“ 中文翻譯：   （復）核仁“nucleolus, overview“ 中文翻譯：   核仁，概述“secondary nucleolus“ 中文翻譯：   第二核仁“true nucleolus“ 中文翻譯：   真核仁“fibrillar center of nucleolus“ 中文翻譯：   核仁纖維中心“nucleolus associated chromatin“ 中文翻譯：   核仁旁染色質“nucleolus organizer gene“ 中文翻譯：   核仁組成基因“nucleolus organizer region“ 中文翻譯：   核仁組織區“nucleolus organizer region, nor“ 中文翻譯：   核仁組織區“nucleolus organizer regions“ 中文翻譯：   核仁形成區,核仁組織區“nucleolus-associated chromatin“ 中文翻譯：   附仁染色質; 連接核仁的染色質“nucleolus-organizing region“ 中文翻譯：   核仁組成區“pars amorpha of nucleolus“ 中文翻譯：   核仁無定形部“nucleolonucleus“ 中文翻譯：   核仁小斑; 核仁組成中心“nucleolonema“ 中文翻譯：   核仁絲狀區; 核仁細絲, 核仁線; 核仁線

nucleometer

It was showed under the laser scanning confocal microscopy that : for dna level fish , 81 % of the dnas were in the nucleoli and at the periphery of the nucleoli and 19 % in the nucleoplasm ; for rna level fish , 22 % of the rnas were in the nucleoli , 78 % in the nucleoplasm and at the boundary between it and the nucleoli ; for dna - rna level fish , 25 % , 46 % and 29 % of the dnas or rnas were in the nucleoli , at the periphery of the nucleoli and in the nucleoplasm , respectively 結果如下： dna水平熒光原位雜交結果顯示， 81的dna位于核仁內部及其核仁周邊區域， 19的位于核質中； rna水平熒光原位雜交結果表明， 22的rna位于核仁內， 78的位于核質及與核仁交界處； dna - rna水平熒光原位雜交結果是， 25的dna或rna位于核仁內， 46處于核仁周邊， 29位于核質中。由此推測出， rna聚合酶的轉錄主要發生在核仁及其周邊區域。

Nucleoli do not emerge in this process . the number of the organelles increase until secondary spermatocyte stage . mitochondria accumulate together , merging together with lysosomes and golgi bodies at the early spermatid stage , and finally the lamellar structure is formed , which forms the acrosome at last 在精子發生過程中，線粒體、內質網和核糖體逐漸增多，其中線粒體數目在次級精母細胞階段達到頂峰，并形成線粒體區，精細胞早期核內出現膜性泡結構，同時次級溶酶體與高爾基體大量存在，這些細胞器共同形成片層復合體，并參與頂體的形成。

At low concentration of zn , the changes in ultrastructure were nuclei deformation , chloroplast swelling and disorder of thylakoid arrangement ; serious damages in ultrastructure caused by greater zn stress were indicated by scattered nucleoli , condensed chromatin , almost empty nuclei with nuclear membrane disrupted and nucleoplasm flowing into cytoplasm , swollen and partly dissolved cristae of mitochondria , disrupted and collapsed chloroplast envelopes , and some dissolved thylakoids that flew into cytoplasm 超微結構的變化也呈現加重趨勢，低濃度處理的變化為細胞核變形、葉綠體膨脹、類囊體排列紊亂；嚴重的超微結構的損傷是核仁散開、染色質凝集，細胞核幾乎成為空核和核膜破裂，核質散出；線粒體脊突膨脹和部分溶解；葉綠體膜斷裂、消失和部分類囊體溶解和散到細胞質中。

The ultrastructure of the merozoites of eimeria tenellawas observed and discribed . the pellicle consist of two layer membranes , the outer membrane was a continous covering enclosing the whole merozoites , while the inner pellicular complex is interrupted at the anterior and the micropore , and thicken to form the polar ring and micropore . there are 24 microtubules under the pellicle of the merozoite which originated from the polar ring , all of them are connected with the polar ring , and extend alongside the inner pellicular complex to the middle of the merozoite . the head of the merozoite consists of a conoid , an apical vesicule and polar ring . the conoid is a hollow truncated cone . the conoid and spical vesicule can stretch and contract . there are three or more rhoptry and a lot of micronemes . the nucleus has nucleolus . and two layer membranes 利用透射電鏡對柔嫩艾美耳球蟲裂殖子的超微結構進行了觀察描述.柔嫩艾美耳球蟲裂殖子的表膜由外膜和內膜復合體兩層組成，外膜連續，內膜復合體在頭部斷開形成極環，在其它部位斷開形成微孔；裂殖子的膜下微管24根，起始于極環，向后延伸至細胞核處；裂殖子的頭部由頂泡、錐體和極環組成，錐體和頂泡可以伸縮；柔嫩艾美耳球蟲裂殖子棒狀體3個以上，微線數量很多，二者都由電子致密的結構組成；細胞核位于裂殖子的中后部，外被雙層膜，有電子致密的核仁和染色質

5 . the position of buffalo oocyte nucleolus related to its pb1 during the final stage of ivm , and the feasibility of increasing enucleation rate using spindle - view system were studied . the space between pbi and spindle ( sp ) of ivm buffalo oocytes increased as the ivm duration prolonged 9 ， 64刀） ，但當成熟時間增加到24h時，這一比例下降到57石（ 726 vs57石， p 0刀5 ） ，如采用spindle view系統去核貝可消除這種位置變化對去核率的影響。

These cells were polygon and displayed morphologic characteristics of liver parenchymal cells at 24 hr of culture , such as a large round nucleus with a few nucleoli and many cytoplasmic granules , sometimes binucleate , hepatocyte was in direct contact with adjacent cells 而肝細胞培養液組在低倍鏡下觀察，培養瓶的背景干猙，死細胞較少，貼壁細胞伸出多個偽足，呈多邊形。相鄰細胞連接成小片狀。

Based on the concepts of nucleolus and shapley value , the start - up costs in an operating single period are allotted to each load . the advantages and shortcomings of the two methods are examined . the allocation of unit no - load costs is also studied 文中首次提出根據各負荷引發的機組啟動費用責任大小來分攤機組啟動費用的原則，分別利用核仁法和shapley值對機組啟動費用進行分攤。

After analysis on characteristic of merchandise surplus function , inapplicability of aumann - shapley allocation method and limitation of nucleolus allocation method are indicated . a shapley value - based allocation method is proposed 在對網損結算盈余函數特性進行分析的基礎上，指出了應用aumann一shapley分攤法的不適性和核仁法的局限性。

In recent years , more and more scientists presumed that rna polymerase transcription might not occur in the nucleoplasm but in the nucleoli . nevertheless , the possibility has not been proved directly 近幾年，有許多學者相繼提出了rna聚合酶有可能在核仁區域內發生轉錄的觀點，但是這一觀點至今還沒有得到直接的實驗證據的支持。

Within 2h isolation from the follicle 100 % of oocytes underwent germinal vesicle breakdown and both the nucleolus and the nuclear envelope disappeared . after culturing for 6 h , prometaphase occurred in 90 % oocytes 本研究旨在探索一種嶄新的、化學試劑誘導去核卵母細胞為核受體的、無透明帶的、手工體細胞核移植方法。

If the intercellular rhizobia were farther from meristematic nuclei , the changes of the nuclei were not very obvious , only their chromatin had started to change from lump - ship to strip - ship , but there were nucleoli in the muclei 當胞間根瘤菌靠近分生細胞核時，細胞核變小，染色質密度增加并形成網狀，而且無核仁出現。

During the early treatment time , nuclear outer membrane was swelling , nucleolus was located near the nuclear membrane , mitochondrions were fused into a mitochondrial ball , myofibril was expanded partly 結果表明：在汞處理初期，心肌細胞核膜突出，核仁分布于近核膜區，線粒體聚集成線粒體球，肌原纖維有部分腫脹。

Clusters of atrophic prostatic acini with proliferatie changes . at low magnification , it may be mistaken for adenocarcinoma ; howeer , they lack cytologic features of cancer such as prominent nucleoli 簇狀萎縮的前列腺腺泡伴發增生性改變。低倍鏡下容易誤當作腺癌，盡管如此，仍缺乏典型的癌細胞特征，如核仁顯著等。

It was showed under the laser scanning confocal microscopy that the transfected plasmid dna transcripted by rna polymerase and its transcripts were both localized in the interior and periphery of nucleoli 由此我們認為rna聚合酶的轉錄就是發生在這一區域里，而并非是人們傳統認識中的核質中。

In rare instances , basal cell hyperplasia shows prominent nucleoli . this is referred to as atypical basal cell hyperplasia . in most cases , this is in response to inflammation nearby 少數情況下在基底細胞增生中可見到明顯的核仁，這即為非典型性基底細胞增生，最常見于附近有炎癥的情況下。

The glandular clusters hae punched out lumens . the cytoplasm is clear or pale eosinophilic . the nuclei are uniform and lack nucleoli . basal cells can be clearly seen 簇狀分布的腺體已經突入腺腔。胞漿透明或蒼白，呈嗜酸性染色。胞核大小均勻，核仁不明顯。基底細胞清晰可見。

The nuclei are monomorphic with inconspicuous nucleoli . the nuclear chromatin has somewhat granular appearance . mitotic actiity is not increased . ( same case as preious 2 illustrations ) 瘤細胞核形態單一，核仁不明顯。核內染色質呈顆粒狀表現。有絲分裂活性未見增強。

The results of these early research work showed that rna polymerase transcription was localized in the nucleoli and rna polymerase and in the nucleoplasm 當時的研究結果顯示： rna聚合酶的轉錄發生在核仁內， rna聚合酶和rna聚合酶的位于核質中。

Cells take diverse shapes . these are epithelial cords of block - like cells . as always , nucleoli and nuclear heterochromatin stain darkly with hematoxylin 不同形態的細胞。這些是立方細胞排列成的上皮索狀結構。總之，核仁與細胞核中的異染色質被蘇木精染成深色。