In this paper the floral ontogeny and the ovary development of rivina humilis l. were observed. the results showed that ( 1 ) the tepal primordia initiated in 2 / 5 spirals. the abaxial one initiated first, then the adaxial one, finally the lateral two initiated nearly simultaneously. the third one initiated on the position near the first tepal, and there is a gap between itself and the second tepal. ( 2 ) the 4 stamineal primordia initiated in one whorl at the same time. ( 3 ) the carpellary primordium initiated from the abaxial side of flower primordium ; the carpellary primordium grew upwards and towards axis after it was formed, therefore an elliptic orifice was formed at the adaxial position of ovary, which was the remainder of the mouth of ovary before the ovary was fused completely. with the ovary maturing, the orifice was narrowed because of the ovary growth, at last fused completely. the gynoecium is composed of a single carpel. ( 4 ) in the series developmental sections of ovary, the ovular primordium was initiated on the adaxial meristem when the mouth of ovary was formed
對數珠珊瑚的花器官發生和子房的發育過程進行了觀察.結果表明: ( 1 )數珠珊瑚花被呈2 / 5螺旋狀發生,遠軸側的1枚先發生,其次為近軸側的1枚發生,最後側方的2枚花被幾乎同時發生,第3枚花被在靠近第1枚的位置發生,第2枚和第3枚之間有1個空隙; ( 2 ) 4枚雄蕊是同時發生的; ( 3 )
心皮發生於分生組織的遠軸側,
心皮原基形成后,向上向軸生長,在子房成熟前在近軸側非正中位形成1個孔,該孔為
心皮最終愈合前的殘跡,到子房成熟時,因子房的生長孔被擠壓縮小,在進一步的生長過程中愈合.子房由1枚
心皮構成; ( 4 )從子房發育過程的切片看,該植物的
胚珠是在子房發生后不久發生的,子房上的圓孔形成時,從近軸側的分生組織發生
胚珠原基,由
胚珠原基分化出珠被與珠
心
Thus, beginning with the fifteenth century, where our story finds us, paris had already outgrown the three concentric circles of walls which, from the time of julian the apostate, existed, so to speak, in germ in the grand - chatelet and the petit - chatelet
因此,我們暫且就以十五世紀來說吧,那時巴黎就已經沖破那三道同
心圓的城垣了,遠在叛教者朱利安時代,大堡和小堡就可以說是這三道城垣的
胚胎了。
Muscarinic acetylcholine receptor machr genes and demonstrated that the embryonic bradycardia is regulated by the m
並證明斑馬魚
胚胎
心跳速率受第二型蕈毒乙醯膽鹼受體調控。
Chalaza ( pl. chalaxae or chalazas ) the region of an angiosperm ovule where the nucellus and integuments merge
合點:被子植物
胚珠上的一個區域,在合點處珠
心和珠被愈合。
I thought that she could open her hand and show me the germ, the true cipher of life.
我認為她會攤開手
心,給我看生命的
胚胎,真正的人生奧秘。
A switchover to endosperm dependency occurs around the heart-shaped stage.
對
胚乳依賴的改變發生於近
心形期。
Enclosure of the nucellus by the integuments is incomplete, the embryo sac or, in gymnosperms, to the archegonium
珠被並不是將珠
心完全封閉,而是留有珠孔以便受精時花粉管進入
胚囊,或裸子植物的藏卵器。
In case 6, the heart looks " inverted " compared to normal ( figure 8 ). this phenomenon is called dextrocardia, and it results from a looping anomaly during embryologic development
病例6中的
心臟與正常相比看上去就像「反轉」了一樣(圖8 ) ,這稱作右位
心,是由於
胚胎發育過程中的
心臟成環異常導致。
Histology and embryology is composed of 2 related sciences
組織學與
胚胎學是醫學生必修的核
心基礎課之一。
Figure 4 - 34. embryology of the atrioentricular junction. the primitie atrioentricular canal is partitioned by the growth of the endocardial cushions ( ec ), interatrial septum ( ias ), and interentricular septum ( is )
房室交界處的
胚胎發育。原始房室管生長分化為
心內膜墊( ec ) ,房間隔( ias )和室間隔( is ) 。
The nucellus is usually degraded and absorbed as the endosperm develops.
珠
心通常在
胚乳發育時被分解和吸收。
The early embryo were made into a series of continuous section slides by tissue cutting. the sections were stained by hematoxylin and eosin ( h & e ) staining and then the development of internal organs such as heart in early embryos was observed by microscope. we found that there is certain relationship between external and internal malformation
同時我們收集人類藥物流產的早期
胚胎,觀察發現
胚胎畸形佔17 . 86 % ,早期致死佔32 . 54 % ;採用組織切片技術將
胚胎製成一系列石蠟連續切片,染色后顯微觀察畸形和正常的早期
胚胎內部
心臟等器官的發育情況,發現
胚胎外部畸形與體內畸形存在一定關聯,對此我們將做進一步的研究。
As a member of this superfamily, human acidic fibroblast growth factor ( afgf or fgf1 ), expressed by a variety of cells from all three germ layers, shows great potential for clinical applications for therapy of a variety of diseases, such as parkinson ' s disease, spinal cord contusion injury, neural regeneration in reimplantation of broken - off finger, brain ischemia, renal ischemia, myocardial infarction, occlusive vascularitis, retinal ischemia, gastric ulcer and nonhealing wound and so on
人類酸性成纖維細胞生長因子( afgf , fgf - 1 )是成纖維細胞生長因子超家族成員。來自於三個
胚層的多種細胞都可以表達afgf 。 afgf在治療帕金森綜合癥、急性脊柱扭曲性損傷、斷指中神經功能重建、腦缺血、腎缺血、
心肌梗塞、閉塞性脈管炎、視網膜缺血、胃潰瘍及難愈合性傷口等多種臨床應用方面具有巨大潛力。
It involves stimulation of ovaries by daily injection of gonadotrophin, egg collection through the transvaginal route under the guidance of ultrasound, fertilization in the laboratory and replacement of good quality embryos into the uterine cavity
整個療程包括每天到醫院打針刺激卵巢抽取卵子處理精子受精及
胚胎移植等,各步驟均需夫婦主動及積極參與,難免面對生理及
心理負擔。
The results of biological tests have demonstrated that allantoic fluid of the first passage virus did n ' t produce macroscopic pathogenic role to chicken embryos and after passaged for four times, gross lesions were observed in chicken embryo. the virus showed typical coronavirus under electron - microscope and it could n ' t form plaque in cef cells and could hemagglutinates chicken red blood cells after treatment with 1 % trypsin. to surprise, the virus replicated in cef cells also showed hemagglutination activity to chicken red blood cells. in addition, the spf chickens which inoculated with the virus isolated from the chicken damaged tissue showed clinical sign and grow lesion, but it ' s gross lesion did n ' t resemble to those of field outbreaks
生物學特性:雞
胚尿囊液經離
心、磷鎢酸負染后,電鏡觀察該病毒為典型的冠狀病毒;該毒株的第一代尿囊液對雞
胚無肉眼可見的致病作用,當繼代到第5代后,
胚體嚴重病變;病毒在雞
胚中隨著接種時間的延長,其效價增高, 96h可達到48h的2倍;該毒株可在cef上生長,但不能形成明顯的蝕斑;經1胰酶處理后可凝集雞紅細胞;雞
胚的第四代尿囊液病毒回歸動物體,病死雞腎臟呈典型的花斑腎,腺胃則未見肉眼可見的病變。
The cells of the integument and nucellus of some plants form perfectly normal embryos.
某些植物的珠被和珠
心細胞形成完全正常的
胚。
" methought the germ of it was dead in me ! o hester, thou art my better angel
「我還以為喜悅的
胚胎已經在我
心中死掉了呢1嗅,海絲特,你可真是我的好天使呢!
In endospermic seeds the endosperm replaces the nucellus and is often a rich source of growth - regulating substances
在有
胚乳種子中,
胚乳取代珠
心,成為生長調節物質(應為營養物質譯者注)的豐富來源。
The mean number of ovules per follicle was 10. 59, n = 320
每
心皮的
胚珠數目為10 . 59 (根據320個
心皮中
胚珠的平均數) 。
Food materials may be stored in a special tissue derived from the nucellus, called the perisperm.
營養物質可以貯藏於由珠心產生的一種特殊組織,叫外胚乳。