胚小,长方形。
由此产生的杂交后代长成了一个名为胚泡的小胚胎,被植入代孕母亲的子宫,然后变成了多莉。
The resulting hybrid grew into a tiny embryo known as a blastocyst, implanted into the womb of a surrogate mother, and went on to become Dolly.
两种蟹肝胰腺均由肝小管的单层柱状上皮构成,在光镜下可以区分出分泌细胞、吸收细胞、胚性细胞。
The hepatopancreas of the two crabs were built with simple columnar epithelia. Secreting, absorbing and embryonic cells could be distinguished.
胚已经具有了表皮、皮层、中柱的分化,细胞小,染色质浓厚。
Embryo cells are small, chromatin is dense, have already differentiation on epidermis, cortex and central cylinder.
胚胎干细胞在叫做胚泡、满流体的球中凝结成一团小而明显的斑点。
Embryonic stem cells clump together as a tiny and distinct blob inside fluid-filled balls called blastocysts.
不锈钢是由小胚制成长条状的,它们可以是圆形的、方形的、六角形、八角形或平面,热磨光或冷磨光。
Stainless steel formed into long shapes from billets. they can be rounds, squares, hexagons, octagons or flats, either hot or cold finished.
较干燥的培养基更利于小孢子胚成苗,最适的琼脂含量是1.2%。
Dry culture medium was favor of regenerating plantlet, optimum AGAR content was 1.2%.
观察所见,5周胚肾已有肾小体发生,肾内的间充质首先分化成造血干细胞,在造血干细胞的诱导下形成毛细血管及肾小囊。
The result showed that the renal corpuscle had generated at the age of 5th week. First mesenchymal proper order the capillary of the glomerulus and the renal capsule were induced by the stem cells.
单核晚期小孢子经培养后,具胚状体发生能力的细胞中央液泡消失,积累淀粉,含丰富细胞器。
The central vacuole began to disappear, and cytoplasm with abundant organelle accumulated starch in some of microspores having embryogenic ability on transfer to culture.
讨论了李群胚在流形上的作用及其无穷小作用。
In this paper we discuss actions of Lie groupoids and their infinitesimal actions on manifolds.
采用鹅胚接种、动物感染、电镜观察及病原核酸与结构蛋白分析等方法对贵州省某养殖场疑似小鹅瘟病例进行了病原的分离与鉴定。
The pathogen of goose plague in Guizhou province is studied by inoculation of goose embryo, artificial duplicating case, observation of electron microscope and genome and structural protein analysis.
取死于具有小鹅瘟典型症状的7日龄吉林白鹅脾脏,制成乳剂,接种于未免疫小鹅瘟疫苗的健康母鹅所产种蛋的12日龄鹅胚尿囊腔。
With 12 days goose embryo produced by healthy geese, a strain of virus was isolated from the spleen of 7 days old gosling died from gosling plaque.
利用石蜡切片技术观察了埃及白睡莲的大、小孢子的发生,雌、雄配子体的发育,受精作用以及胚和胚乳的发育。
The megasporogenesis, microsporogenesis, female and male gametophyte development, development of embryo and endosperm were observed by using paraffin wax.
本文还就巨胚稻及小胚稻的遗传改良及育种应用作了讨论。
Genetic improvement and application on breeding of giant embryo rice and little embryo rice were also discussed in this paper.
本文给出了一个条件,证明了在此条件下任意小同胚连接区域是道路连通[的]。
This paper provides a condition and proves the domain in which any two points are joined by finite numbers of arbitrarily small homeomorphisms is path-connected under the condition.
花药培养的花粉胚植株再生率要明显高于游离小孢子培养。
The efficiency of regeneration of pollen plants with the pollen embryo inducement in pollen culture is higher greatly than that of isolated microspore culture.
原胚初期胚体出现背腹极性,腹面的细胞小,细胞质稠密,液泡较少;
During early proembryo stage, the dorsiventrality appears in the proper of the embryo. On the ventral side, the cells are small with dense cytoplasm and few vacuoles.
供试材料经低温预处理,小孢子胚产量均有明显提高。
All the materials microspore embryoid yield had significant improvement under low temperature pretreatment.
去核时卵母细胞质剩得过少可导致移核胚过早(6-细胞期)发生致密化或形成内细胞团细胞数目较少的小囊胚;
Too much reduction of the cytoplasmic mass at enucleationled to premature compaction of the nuclear transplant embryos at 6-cell stage or the formation of small blastocysts with few ICM cells;
结果表明:供体植株基因型是影响小孢子发生胚状体的关键因素,不同材料之间的诱导频率差异显著;
The results showed that genotype plays a decisive role on informing embryoid in microspore culture, the induction frequency of embryoids significantly difference among different genotypes As no.
微胚乳超高油玉米的胚、非胚和籽粒的含水量随籽粒的发育都呈下降趋势,且下降速率较高油玉米115小。
Moisture contents of embryo, OSK and kernel of micro-endosperm super high oil corn showed a downward trend with the development of kernel, and decrease rates were less than that of high oil corn 115.
低温预处理对小孢子胚产量有显著影响,不同基因型所需预处理时间不同。
Low temperature pretreatment had a significant effect for embryoid yield, different genotype had different pretreatment time.
结果表明:基因型影响着小孢子胚状体的再生苗形成;
The results are as follows: The genotype affect plantlet regeneration of microspore embryoids;
讨论了李群胚在流形上的作用及其无穷小作用。
In this paper, Lie group, Symplectic manifolds, Groupoids are treated as fundamental research subjects.
各品种间小孢子胚产量差别较大,每100枚花药产胚数(诱导率)在0.11%-17.62%之间。
The yield of microspore-derived embryoids (No. of embryoids per 100 anthers)varied from 0.11% to 17.62% among varieties.
羽衣甘蓝成熟小孢子胚转到固体培养基上可直接萌发成苗。
Study on Multiple Shoot Induction and Plantlet Regeneration of Kale;
羽衣甘蓝成熟小孢子胚转到固体培养基上可直接萌发成苗。
Study on Multiple Shoot Induction and Plantlet Regeneration of Kale;
应用推荐