裂生胚 的英文怎麼說
中文拼音 [lièshēngpēi]
裂生胚
英文
cleavage embryo-
Embryogeny ( embryony ) 1. the development of an embryo from the moment the zygote divides
胚胎發生(胚狀體) : 1 .是從受精卵分裂開始的胚胎發展過程。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。( 3 ) the chromosomes obtained by air - drying and chromosomes from the silkworm genital gland are similar in shape. but the numbers and the length of the chromosomes are obviously different. the chromosomes obtained from the genital gland have little difference in length, while the chromosomes of bmn cell are different in length very much
但是,在染色體的數目上有顯著的差異。另外,染色體間的長短差別也非常明顯。由家蠶生殖腺得到的減數分裂中期染色體和胚胎得到有絲分裂的中期染色體,其染色體長短差異不明顯,而binn細胞的中期染色體長短非常不一致,差異非常顯著。Protein kinase a is camp - dependent kinase, one of the most important signal transduction pathways, plays a pivotal role in growth, differentiation, tumor occur, cell cycle control, etc. pka activators such as camp, 8 - br - camp or phosphodiesterase ( pde ) inhibitor isomethyl butyl xanthine ( imbx ) or purified pka catalytic subunit all can inhibit germinal vesicle breakdown ( gvbd ) and meiotic maturation in mouse oocytes, also in xenopus oocytes
蛋白激酶a ( proteinkinasea , pka )是依賴于camp的絲蘇氨酸蛋白激酶,是重要的信號傳導途徑之一,廣泛參與許多生命過程,包括生長、分化、腫瘤發生、細胞凋亡、細胞周期調控等。以小鼠卵母細胞為實驗對象,給予pka激動劑camp 、 8 - br - camp或磷酸二酯酶抑制劑imbx ( isomethylbutylxanthine )均可抑制小鼠卵母細胞的胚泡破裂及減數分裂成熟。Using the young seedlings of wild type ( wt ) and four mutants ( phya, phyb, phyaphyb and hy4 ) of arabidopsis thaliana as plant materials, the effects of light quality and kinetin ( kt ) on some photomorphogenesis responses such as cotyledon enlargement, hypocotyl growth inhibition, accumulation of chlorophyll and anthocyanin were investigated in the present study. photoreceptor functions and interaction of light and kt in the responses was examined and discussed
本文以擬南芥( arabidopsisthaliana )野生型( wt )和四種光突變體phya 、 phyb 、 phyaphyb和砂hy4為材料研究不同光質與細胞分裂素( kt )對幼苗子葉擴大、下胚軸伸長、葉綠素和花色素苷積累的影響,分析光受體參與的反應以及探討光與kt在調節各種反應中的相互關系。The mice showed also ageing - associated decline in oocyte quality, as indicated by increased frequency of premature chromatid separation, spindle disruption and / or chromosome misalignments in mii oocytes of aged mice. the gv oocytes from aged mice normally matured in vitro. the percentages of pronuclear - stage embryos, 2 - cell embryos and blastocyst derived from mii oocytes of aged mice by in vitro fertilization ( ivf ) were comparable with ones of young mice, but pronuclei formed 1 h later in aged mice than in young mice
老齡小鼠gv期卵母細胞能正常體外成熟;老齡小鼠m期卵母細胞經體外受精后形成原核期胚、 2 -細胞期胚和囊胚的比率與年輕小鼠比較無顯著差異,但原核形成時間延遲1小時;在老齡小鼠卵母細胞,注射牛精子抽提物或sr ~ ( 2 + )處理時所誘發的ca ~ ( 2 + )振蕩以及在減數分裂成熟及早期胚胎中的pkc分佈未發生改變。They do the same thing that is naturally done in the case of twins or quintuplets. there is only one egg and one embryo, and then it splits itself into two or three or five or four or six. so now, ask yourselves : how many souls are in there
他們就是模仿雙胞胎或多胞胎發生的情形,從一個受精卵或胚胎分裂成二三四五或六個,現在你們想想看會有多少個靈魂在那裡?The reasults are summed up as following : 1 the study on chromosomes and mitoses of bmn cells the cell line, bmn, is a silkworm cell line widely used in silkworm molecular genetics, cell engineering, gene engineering and baculovirus expression system but whose genetics and cytobiology studies are nearly untouched. the chromosomes and mitoses of the bmn cells are researched by the air - drying method and culturing cells on cover glasses
同時,還通過原代培養實驗對新的家蠶胚胎細胞系的建立進行了探索和嘗試,並對家蠶胚胎原代培養過程中出現的細胞和組織類型進行了觀察、探討與研究。 1bmn細胞有絲分裂及染色體研究bmn細胞是家蠶分子遺傳學,細胞工程、基因工程和桿狀病毒表達系統中廣泛應用的家蠶細胞,但其遺傳學和細胞生物學背景知之甚少。When a pollen grain germinates, a pollen tube pushes its way out through an aperture in the pollen grain wall, and the nuclei migrate into the tube
生殖細胞核分裂,形成兩個僅由細胞核和細胞質構成的精子,其中一個將與卵受精,另一個則與極核融合形成胚乳核。In the overlap part of the right side of two main faults, the left - lateral strike - slip movement of them in quaternary has formed the embryonic rhombochasm
在兩條主要左行走滑斷裂的右側疊覆區,兩條主斷裂第四紀的左行走滑運動產生一個胚胎期的菱形斷陷。The primary primordial germ cells is obtain from the human embryos after 4 - 8 weeks of pregnancy. after mechanical desection and enzymic digestion, the cells were cultured on mouse embryonic flbroblast or human embryonic flbroblast feeder layer inactivated by mitomycin. the medium contains several cytokines : lif ( leukemia inhibitory factor ), bfgf and foskolin
從4 ? 8周的流產胎兒的原始生殖嵴部位分離到原始生殖細胞,經過機械和化學方法的解離后培養於事先用絲裂黴素處理過的小鼠胚胎成纖維細胞或人胚胎成纖維細胞飼養層上,培養基中添加了lif , bfgef , foskolin等細胞因子,此後大約每7天左右傳代一次。Use the method that form couples the design. the experiment set is in accordance with the matched control press the age differ 2 years old or soly, the mii period oocyte differ 21y or soly, coh project the similar proceeding in cause of infertility forms couples. experiment method controlled ovarian hyperstimulation was undertaken using subcutaneous buserelin acetate in a long protocol combined with gonal - f
用配對設計的方法於2002年9月至2003年2月在沈陽市婦嬰醫院生殖中心就診的ivf - et患者中選擇30例年齡在25歲- 35歲,平均年齡( 29 . 5 3 . 1 )歲,取卵數在10枚以上,平均取卵數( 13 . 8 3 . 1 )枚,作為對照組,進行卵裂期胚胎移植。Suitable hormone and cytokin concentration as well as time for excising ovary were crucial for increasing the number of hybrid embryos and the pecentage of hybrid embryos
在培養中,適宜的生長素和細胞分裂素濃度以及恰當的子房離體前的發育時間能提高成胚數和成胚率。Bap performed more important function than kt in differentiation of tall fescue embryogenic calli, but better results could be achieved with combination of 2mg / l bap and 0. 5mg / l kt. at this cytokinin level, 0. 5mg / l naa was recommended to obtain the highest callus regeneration frequency. plant regeneration could be evidently boosted when embryogenic calli were pre - differentiated on high - osmoticum medium with 60g / l sucrose, and / or when the pre - differentiated compact calli were differentiated on differentiation medium solidified with l0g / l agar
高羊茅胚性愈傷組織分化時, bap的作用要比kt大,但2mg lbap與0 . 5mg lkt配合可獲得更佳的效果;在該細胞分裂素水平下,生長素naa用0 . 5mg l ,愈傷組織再生率最高;胚性愈傷組織先在含60g l蔗糖的分化培養基上高滲預分化,以及經高滲預分化后的緻密愈傷組織在瓊脂濃度為10g l的分化培養基上分化,能明顯促進愈傷組織的植株再生;在分化培養基中添加脯氨酸導致愈傷組織再生率下降,但同時有減少白化苗再生的趨勢。分享友人