胚性發育 的英文怎麼說
中文拼音 [pēixìngfāyù]
胚性發育
英文
embryonal development-
The results show that the blastomere nuclei of ? xenopus laevis induces the parthenogenesis of unfertilized egg in ? bufo raddei
根據實驗分析認為,非洲爪蟾的胚胎細胞核進入花背蟾蜍成熟卵后,引起的是花背蟾蜍的單性發育。The protein nucleic acid complexes were identified by autoradiography for 48 h. the psg5heo and igfbp - 6 promoter pcat vectors were transfected into cos - 7 cells with iipofectamin2000 ; these cos - 7 cells where treated with 1 jxm e2, with lonm tcdd and with both lonm tcdd and 1 jxm e2, individually ; the cat protein was examined by cat - els a. results : the congenital skeletal defects in fetal rats were induced with 10 - 15ug / kg tcdd or with 100 - 140 mg / kg ra with dosage - dependence effect. the igfbp - 6 mrna in rat calvaria tissue and mc - 3t3 - el cells were increased with tcdd and ( or ) ra, whereas the cell proliferation and igf - 2 mrna in mc - 3t3 - el cells was decreased in the status of e2
結果: tcdd在大鼠胚胎發育時期具有骨骼致畸作用,骨骼發育畸形包括:內翻足、脊柱裂、顱面骨發育缺陷、無尾畸形等;隨著tcdd濃度的升高( 10一15林擴kg ) ,致畸率明顯上升( 14 . 7 %一24 . 6 % ) ; tcdd和ra聯合用藥可以增強對大鼠骨骼發育的致畸效應; e :對成骨細胞內igf一2基因有正性調節作用,對igfbp一6基因有負性調節作用, tcdd可以抑制e :對細胞內xgf一2和igfbp一6的調節作用。These congenital lesions arise from abnormal separation of the endoderm and neuroectoderm during embryogenesis
這些先天性的異常是因為再胚胎發育時,內胚層與神經外胚層不正常的分離所造成的。During male gametogenesis, the spermatogonia became primary spermatozoa through mitosis, and then became fourth equivalent cytoplasm, round sperm through meiosis. after maturation, they participated in embryo development with the mature oocyte through fertilization. but in female gametogenesis, the primary oocyte formed a matured egg and 1 ~ 3 polar bodies ( pb )
雄性動物精子發生過程中精原細胞最後一次有絲分裂形成二倍體精母細胞后,經過兩次減數分裂形成了四個含等量細胞質、圓形的精子細胞,最終發育成四個具有正常生理功能的精子,與成熟卵母細胞受精后參與胚胎發育。Abstract : the early embryo developmental block is a common phenomenon in mammal when embryos are cultured in vitro. many studies of phosphorus, glucose, hypoxanthine and cytoplasmic factors on early embryo developmental block carried out by different methods such as morphology, biochemistry, molecular biology and micromanipulation have been reviewed. the merit and shortcoming were analyzed and the necessity of using simple or components limited media overcoming early embryo developmental block were also reviewed. media that have been shown effective in overcoming early embryo developmental block in mouse, rat, hamster, rabbit, pig, sheep, cattle and monkey were listed
摘要哺乳動物胚胎在體外培養中普遍存在早期發育阻滯的現象.對此,人們用形態學、生物化學、分子生物學、顯微操作等手段開展了磷酸、葡萄糖、次黃嘌呤和細胞質因素對早期胚胎發育阻滯的影響的研究.本文綜合分析了共培養系統的優缺點.說明了採用完全成分已知的培養液對進行有關研究的必要性.列出了有效運用於克服小鼠、大鼠、倉鼠、兔、豬、羊、牛、猴等動物早期胚胎阻滯的成分已知的培養液的名稱。Four species of ceratiodes were studied about organic morphology and embryonal development and biological characteristics. the results were showed as follows : c. arborescens and c. ewersmanniana were more dominant than c. latens and c. lanata in spire and vegetative period. in flowering phase of male flower, c. arborescens and c. latens arrive the maximum peak of flowering during 8 : 00 - 11 : 00. c. lanata arrive the maximum peak of flowering during 11 : 00 - 1 : 00, but in flowering phase of female flower, three species arrive the maximum peak of flowering in 14 : 00 ; temperature of female flower was righter than one of male flower
本文對駝絨藜屬4種植物進行了器官形態學及解剖學、胚胎發育及生物學特性的研究,結果表明: 4種材料幼苗期和營養生長期的生長狀況均是華北駝絨藜、心葉駝絨藜比駝絨藜、北美駝絨藜占優勢;開花規律,華北駝絨藜和駝絨藜雄花均在8 : 00 - 10 : 00達開放高峰,北美駝絨藜在11 : 00 - 1 : 00達開放高峰,而三者雌花均在14 : 00左右達開放高峰。We studied water permeability of seed coat, development of embroy, absence or presence of germination inhibitors and some other aspects in order to confirm the dormany causes of mulberry seeds from north of heilongjiang province
摘要從種皮透性、胚的發育、是否存在萌發抑制物等方面,對產于黑龍江省的實生桑種子休眠原因進行了研究,初步認為,胚的生理性休眠是實生桑種子休眠的主要原因。The technique of microinjection is significant to embryo ' s development. for example, the different volume of microinjection will have direct effect on the in vitro survival rate of the embryos and even the successful rate of the transgenic animals
顯微注射技術對胚胎發育有著關鍵性的影響,如注射劑量的不同將直接影響到胚胎體外發育的存活率乃至影響整個轉基因動物的成功率。Nearly all forms of substance abuse can affect sperm production, egg release and embryo development. these substances include recreational drugs, alcohol and cigarettes
幾乎形式的物質濫用都能影響精子產生、卵子釋放以及胚胎發育。這些濫用的物質包括軟性毒品、酒和煙。In this paper, we discussed the similarity between machine design process and biology growth process, especially the similarity between machine structure design process and biology embryo growth process, and point out that we should use the rule of biology embryo growth process ( morphogenesis ) to implement assembly structure design automation, and put forth a feasible plan to implement the assembly structure design automation
摘要論述了機械設計過程與生物發育過程之間的相似之處,特別是機械結構設計過程與生物胚胎發育過程之間的相似性,指出借鑒生物胚胎發育的規律(形態發生學)實現裝配結構設計自動化的可能性,並從計算機實現的角度提出了可行的步驟和方案,利用此方案可實現裝配結構的自頂向下設計。The objective of this study was whether the reconstituted embryo with the second polar body ( pb2 ) can develop. firstly, female mouse was superovulated with pmsg + hcg and keep in the same cage with male mouse, the pronuclear embryo was obtained at the different time after hcg injection with different motheds to investigate the existing time of pronuclear embryo. then pronuclear embryo was cultured with three different mediums to select the best to culture in vitro
母鼠在注射hcg后與公鼠同籠交配,並在注射hcg后不同時間(從18h到26h ) 、不同方法(體內法和體外法)獲取胚胎,研究獲取原核胚的最佳時間;在此基礎上獲得具有第二極體原核胚,然後對原核胚進行顯微操作,去除雌原核並注入第二極體,探討第二極體內遺傳物質支持胚胎發育的潛力;同時利用dna特異性染料h33342對原核胚進行染色,顯示並比較原核和第二極體內的dna遺傳物質。Congenital microphthalmos is a rare ocular anomaly due to arrest of ocular growth and development in early fetal life
摘要先天性小眼癥是在胚胎發育早期眼球生長停滯所造成的先天異常。The mutation allows for the production of igf - ii, a growth factor that ordinarily comes only from the male genome and is crucial for embryonic development
這項突變讓卵子製造出一般只有雄性基因組才能製造、對胚胎發育非常重要的類胰島素生長因子2 ( igf - ) 。As the result of differential expression of embryogenesis - rela ted genes, the essence of this process has been one of remarkable issues in the plant developmental biology
植物體細胞在一定條件下可分化為胚性細胞,並通過體細胞胚的發育形成一個完整的植株,這一過程是基因差別表達的結果。The results demonstrated that the expression of grp78 and grp94 was in a time specific pattern. high levels of grp78 were present in early embryo stage, and were decreased during the fetal period, increased gradually during postnatal development, and reached adult mouse after one week. but the expression of grp94 was initially observed in low levels, and raised gradually along with the development process until the later stage
結果1 .小鼠腦發育過程中分子伴侶g刊階8 、 g刊四4的表達呈現出時間順序性,而且二者的表達模式不同: gr即8胚胎早期表達較高,胚胎發育末期逐漸下降,出生后逐漸升高,至生后一周時達到成年鼠的水平,而『 gr即4在發育的早期表達水平較低,發育中期逐漸升高,出生時達到高峰,出生后一直維持在較高的水平。The proteinase activity during early embryonic development of rana nigromaculata
黑斑蛙早期胚胎發育過程中蛋白酶活性The results showed that, at 12 48 hrs post infection, the bursal epithelial cells bore swollen and necrotic shape. the lymphoid cells in the medulla and cortex of lymphoid follicles had various degrees of degeneration and necrosis. the lymphoid follicles showed glandular structures or cystic vacuoles owing to the prolifetation of bursal epithelium and lymphocyte depletion. lymphoid follicles from bursa at 72 144 hrs post inoculation became atropy. marked proliferation of interfollicular and interstitial connective tissue was present
結果表明,病毒感染后12 48小時,雛雞法氏囊粘膜上皮細胞腫脹、壞死脫落,淋巴濾泡髓質部及皮質部淋巴細胞不同程度變性、壞死、排空,形成腺管樣結構或囊狀空泡,接毒后72 144小時,法氏囊淋巴濾泡淋巴細胞壞死排空,淋巴濾泡萎縮,網狀結締組織大量增生,而胚胎發育時期,法氏囊粘膜上皮腫脹變性,法氏囊淋巴濾泡形成延遲或不完整,淋巴濾泡內淋巴細胞缺乏或空虛。Metanephric adenoma is a unique renal tumor with benign biologic behaior in spite of their large size
后腎腺瘤盡管體積較大,但卻為胚胎發育過程中后腎來源的良性腫瘤,較少見。Effect of reactive oxygen species on the development of mammalian early embryos
活性氧對哺乳動物早期胚胎發育的影響The results not only provide evidences for the study of early embryonic development mechanism in silkworm, but also give clues for the study of insects diversity
這一結果不但可以為家蠶胚胎發育調控機制的分子水平研究提供重要參考,也可為昆蟲分化多樣性的分了機制研究提供線索。分享友人