体胚发生是植物细胞全能性的一种表达方式，是快速繁殖的新途径。
Somatic embryogenesis is a way of plant cell totipotency, and a new pathway of rapid propagation.
测定了龙眼胚性愈伤组织体胚发生过程中若干生物大分子的动态变化。
The dynamic changes of some biomacromolecules were measured in the process of somatic embryogenesis from embryogenic callus in longan(Dimocarpus longan Lour. ).
由于离体培养比较困难，使得荔枝体胚发生和种质离体保存研究进展缓慢。
As there are difficulties in litchi vitro culture, only few studies reported on somatic embryogenesis and germplasm Cryopreservation.
进步讨论了ABA对毛酸浆体细胞胚发生的影响以及体细胞胚发生与环境胁迫的可能关系。
The effect of ABA on embryogenesis of Physalis pubescens L. and the possible relationship between somatic embryogenesis and environment stress were also discussed.
开展栓皮栎体胚发生再生植株研究，对栓皮栎优良无性系快繁、遗传改良和基因资源保存具有重要意义。
It is very important to quickly propagation excellent clones, genetic improvement and gene resource preservation through somatic embryogenesis plant regeneration for this species.
植物体细胞胚发生的机理研究和多倍体诱导的技术优化一直是植物分子及细胞生物学中的两个热点问题。
In recent years, the study of development of plant somatic embryo and technique of polyploid induction have become two important subjects in cytobiology and molecular biology.
因时间有限，没有系统地研究杂交松体胚发生的完整过程，如何促进愈伤组织的分化及体细胞胚的诱导有待进一步的深入研究。
We were not able to induce somatic embryos because of limited time. How to make the callus differentiate and induce the somatic embryos was the basis of embryogenesis in future.
结论卵巢内胚窦瘤的发生率在中国各类型卵巢恶性生殖细胞瘤中位居首位。
Conclusions the endodermal sinus tumor of the ovary stands first in the incidence of malignant germ cell tumors of the ovary in China.
用免疫组织化学方法研究了鼠胚和新生大鼠含心房肽免疫反应颗粒的心房肌细胞的发生和分布。
The occurrence and distribution of the atrial muscle cells containing atriopeptinimmunoreactive granules were studied in rat embryos and newborn rats with immunohistochemistry.
采用组织培养和石蜡切片法，分析多种因素对防风畸形胚状体发生和发育过程的影响及控制。
The effect of various factors on the occurrence and growth of abnormal somatic embryos were studied.
APRT编码基因在体细胞胚发育过程中的活跃表达，意味着在高等植物胚胎发生或发育过程中存在核苷酸补救合成途径。
APRT coding gene was active during the development of somatic embryogenesis, this indicated a way of nucleotide remedial synthesis existed during embryogenesis or embryo development in higher plant.
然而，胚种说真要发生，微生物除了从第一颗行星喷发、进入第二颗行星的大气时必须幸存之外，还要能在整个行星际旅程中保住小命。
For panspermia to occur, however, microorganisms need to survive not only ejection from the first planet and atmospheric entry to the second but the interplanetary voyage itself.
研究结果表明，新型植物生长调节剂TDZ有利于棉花愈伤组织的诱导，但不利于棉花愈伤组织的增殖和保持，也不利于棉花体细胞胚的发生。
TDZ was advantageous to induction of cotton callus, but it was not advantageous to proliferation and maintain of callus, and was not advantageous to induction of somatic embryoids.
小麦黑胚病普遍发生，不同品种(品系)有差异。
Black point of wheat existed widely, but different varieties (strains) varied in its incidence.
结果发现，经煮和蒸两种方法处理的麦胚中，脂肪酸含量明显低，且各脂肪酸之间的比例也发生变化。
The results showed that the fatty acids content in wheat germ decreased, and the ratios of major fatty acids changed by processing with boiled water or hot steam.
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.
对棉花体细胞胚胎发生和植株再生基因型范围的拓宽进行了研究，有望得到丰产抗病棉花品种农大94 - 7的胚性愈伤组织。
To broad the number of regenerable cotton species, a new high yield and disease resistant variety, Nongda94-7 was studied, and Embryogenic callus of it could be induced for the future.
结合形态与结构分析，表明差异蛋白质可能与体细胞胚的发生和发育相关。
In combination with morphological and structural analysis, it indicated that these specific proteins may be relevant to embryo formation and development.
为研究低氧诱导因子- 1 (HIF - 1)在小鼠胚胎神经胚形成阶段的时空表达规律，探讨HIF - 1在胚胎神经系统发生和发育过程中的作用。
To investigate the spatiotemporal expression of hypoxia-inducible factor-1 (HIF-1) during murine neurulation and explore the role of HIF-1 in the embryonic development of the nervous system.
小麦成熟胚愈伤组织的诱导率、生长率及胚性愈伤组织发生率的基因型效应有显著差别。
The effect of genotype on the rate of induction, growth and embryogenic callus initiating were different significantly.
以杂交鹅掌楸幼胚为外植体，进行体细胞胚胎发生研究。
Somatic embryogenesis was successfully done in Liriodendron hybrids with the immature zygotic embryos as explants.
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.
激素配比及浓度是诱导胚状体发生的关键。
The hormone combination and concentration was the uppermost factor influencing somatic embryogenesis.
关于被子植物多胚苗的发生机理目前还没形成统一的定论。
However, affirmative conclusion about the mechanism of producing the PS material in angiosperms is not still formed and obtained.
总结了影响栎属植物体细胞胚胎发生的主要可控因素及体细胞胚的遗传变异，组织学研究现状。
This paper summarizes the research progress of the factors involved in controlling the process of oak somatic embryogenesis, as well as the genetic variation and histology at present.
胚乳介导营养物质从母体到胚的转运过程，是开花植物中发生印迹的重要部位。
The endosperm, a seed tissue that mediates the transfer of nutrients from the maternal parent to the embryo, is an important site of imprinting in flowering plants.
本实验结果将为进一步探讨植物的器宫发生机理及比较研究器官发生途径与胚状体发生途径之间的异同提供了一定的实验依据。
These results will provide some experimental evidences for the discussion of the plant organogenesis mechanism and the comparison of between organogenesis and somatic embryogenesis.
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.
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.
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