胚孔 的英文怎麼說

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

Only the dorsal lip of the blastopore could induce altered development in the host.

只有胚孔的背唇能夠誘導宿主發育的改變。

Some brown chromatophores appeared in about 18h. the blastopore closed in 22h20min

18小時左右，出現褐色點狀色素胞， 22小時20分胚孔關閉。

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。

These include phototropism, light - driven chloroplast movements and stomatal movements. the phot i gene of arabidopsis encodes an autophosphosphorylating protein kinase that functions as a photoreceptor for phototropism in response to low - intensity bl. up to now

在高等植物中，藍光調控多個重要生理反應過程，其中包括下胚軸的向光反應、葉綠體在光下的重新分佈和氣孔的開放等。

Barring a few exceptions, it is difficult to obtain large amounts of material of the free nuclear endosperm of plants for routine biochemical analysis.

除了個別例外，要獲得大量的植物游離胚孔材料，並用於日常的生化分析是困難的。

So for some special patients, zona drilling or local zona thinning with increased z ptv may help embryo hatching. at the same time, different types of assisted hatching have been developed, such as mechanical tearing, chemical digesting and laser burning

因此，對一些特殊病人進行透明帶打孔或局部減薄提高zptv或許有助於胚胎孵出及種植；與此同時，多種輔助孵出方法也在被人們嘗試使用，如機械切割法、酸化學溶解法和新近使用的激光燒灼法。

A low implantation potential of human embryos replaced in the uterus after in vitro fertilization ( ivf ) is a great barrier in assisted reproduction. recently, failure of the embryonic zona pellucida to rupture following blastocyst expansion has been supposed as a possible contributing factor in implantation failure. and then an idea of creating a hole artificially in the zona pellucida, i. e., assisted hatching ( ah ) has been put forward in order to help blastocyst hatching

體外受精胚胎移植（ invitrofertilization - embryotransfer ， ivf - et ）中胚胎種植潛力較低一直是困擾人們的一個問題，近年來的一些研究認為囊胚擴張后透明帶不破裂可能是種植失敗的一個原因，於是提出人為地在透明帶上打孔幫助胚胎孵出，即輔助孵出（ assistedhatching ， ah ）的思想。