发育激素

Plants modulate their shoot architecture by regulating activities of the shoot apical meristem and axillary meristems.

高等植物通过调节顶端分生组织和侧生分生组织的活性建立地上株型系统，分生组织的活性受环境信号、发育阶段和遗传因素的综合调控，植物激素参与这些信号的整合。

In the first 20 weeks of gestation,neural development of the fetus is mostly dependent on thyroxin from the mother.

母体甲状腺激素主要影响妊娠前20周胎儿的神经发育。

It is well documented that administration of GH byinjection,immersion or feeding can promote the growth and improve food conversionefficiency in teleosts.

生长激素是鱼体正常生长、发育必不可少的内分泌激素，外源生长激素的补偿可以加速鱼体生长，生长激素通过注射、浸泡、投喂作用于鱼体，显著促进了鱼体的生长，提高了饵料的转化效率。

In male, three kinds of sex steroid receptors were distributed in the spermatogonia, spermatocytes and spermatids, and the positive reaction was localized in the cytoplasm and nucleus of these spermatogenic cells.

在雄性，3种类固醇激素受体分布在不同发育时期的精原细胞、精母细胞和精子细胞中，受体阳性物定位在胞质和核。

GA promotes plant growth via 26S proteasome-dependent proteolysis of DELLA proteins repressors, one of the key component in GA signaling, and also depends on GA-mediated interaction between GA receptor and DELLA proteins. Finally, this paper discussed the cross-talking between GA and other hormones, and modulation of adaptation to environments.

本文综述了赤霉素生物合成的生物学途径及其调控研究； GA信号转导通道的研究进展，特别是DELLA蛋白阻遏植物生长发育的分子机理和GA解除阻遏作用的分子模型； GA受体研究的新进展；探讨GA与其它激素之间的相互作用，以及植物在应答环境过程中的作用。

Berleth Lab, Department of Botany is primarily dedicated to teaching and research in botany including plant physiology, plant biochemistry, plant anatomy and development, plant pathology, molecular genetics of plant hormone signal transduction, vascular plant systematics, plant evolutionary biology, microbial ecology, plant evolutionary ecology and physiology.

植物学系主要致力于植物生理学，植物生物化学，植物解剖学和发育，植物病理学，植物激素信号转导的分子遗传学，维管植物分类学，植物进化生物学，微生物生态学，植物进化生态学和生理学等。

Hormones are the main materials which regulate the plant growth and the secondary metabolites formation of plant.

激素是调节植物细胞生长发育和代谢产物形成的主要物质。

In the present study, we collected cumulus cells oocyte complex from ovaries of two different strain mice. The cumulusenclosed oocytes were cultured for 6 h in MEM supplemented with growth factor and FSH. The meiotic maturation of these oocytes has progressed to pro-metaphse Ⅰ stage and the condensed chromosomes are visible under DIC microscope, metaphase Ⅰ spindle even can be detected under Polscope. The metaphase Ⅰ spindles of oocytes were exchanged under such microscopes. After electric stimuli, 91. 6% and 91. 6% karyoplasts-cytoplasm pairs were fused respectively. The resulting oocytes were cultured further in MEM and over 80% of oocytes released the first polar body. 79% and 77% of oocytes formed two pronuclei after in vitro fertilization and the embryos were cultured in KSOM supplemented with amino acids. Over 60% of embryos developed to blastocyst stage.

在本研究中我们在取得两种不同品系小鼠的卵丘卵母细胞复合体后，先将卵丘卵母细胞复合体置于含有多种生长因子和激素的MEM培养液中培养6小时，此时卵母细胞已进入第一次减数分裂的前中期，并且在DIC倒置显微镜下可以看到浓缩的染色体，用Polscope可以发现明显的纺锤体，借助这种显微镜通过显微操作将两种不同品系小鼠来源的卵母细胞的MI纺锤体进行互换，经过三次直流电脉冲作用后，分别有91.6％的胞质—MI核质体对融合，经过进一步的培养后，超过80％的重组卵母细胞排出第一极体，体外受精后分别有79％和77％的重组卵形成双原核，受精后的胚胎在KSOM胚胎培养液中体外培养4天后，超过60％的胚胎发育至囊胚。

Endogenous hormone ABA and GA3 played an important role in seed dormancy and germination. ABA was the key factor for seeds germination, the reduction of ABA was the initiatory factor for embryo development, while the increased GA3 benefited physiological after-ri pening.

内源激素ABA和GA3在滇重楼种子休眠与萌发过程中起着重要作用，ABA是引起休眠的关键因素，ABA含量的降低是滇重楼种胚发育的始动因子，GA3有助于种子的生理后熟。

Four main factors which possibly affected sex were described such as arginine concentration in female animal vagina, glucose in the uterus, maturational status of the oocyte at the time they encounter sperm as well as the hormone levels of both parents at the time of conception.

这些环境因素包括母体生殖道中精氨酸含量、胚胎发育过程中子宫内葡萄糖浓度、输精时卵母细胞成熟程度以及哺乳动物受孕时生殖激素的水平等方面，为进一步开展性别控制研究积累一定的资料。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。