查询词典 uninucleate

More calcium precipitates were located in the epidermis, endothecium and tapetum of the sterile anther than in those of the fertile anther. Longitudinal inner cell wall of the sterile anther became thicker than that of the fertile anther at the dyad stage and uninucleate pollen stage.

到四分体与单细胞花粉时期，不育花药的木质部细胞的次生加厚壁上有较多的Ca2+沉淀，连接组织中的Ca2+沉淀也大大增加，所有不育花粉外壁较厚而发育都不正常。

After the early uninucleate stage, nearly all of Peiai 64S microspores possessed malfunctional exine that was deviod of electron transparent region between sexine and nexine, and no intine was established.

早期小孢子形成之后，几乎所有小孢子外壁均发育异常，表层与里层之间界限不清，缺少中间透明带，同时内壁没有形成。

The results showed that pepper's microspore develped at three stages: tetrad, uninucleate, and binucleate, and each stage demonstrated distinctive characteristics.

结果表明，辣椒小孢子发育经四分体时期、单核期和双核期，各时期特征明显。

Some large vacuoles appeared in the tapetal cells of the sterile anthers at the early uninucleate pollen stage.

在单核细胞早期，不育花粉的四分体细胞中有较明显的大液泡出现。

FUNGI Fungi are almost entirely multicellular, heterotrophic (deriving their energy from another organism, whether alive or dead), and usually having some cells with two nuclei multinucleate, as opposed to the more common one, or uninucleate per cell.

FUNGI Fungi是几乎完全地多细胞性，异养(获得他们的能量从另一个有机体，是否活或死)和通常有与二个中坚力量的有些细胞多核，与更加共同一个相对或者单核每个细胞。

During the early uninucleate stage, the POD activity on area A、area B and area C with CHAs of treatment 2、3 was obviousely lower than the control. But in these areas POD activity with CHAs of treatment 4、5 was obviousely higher than the control.

在单核早期，处理2和3的A、B和C区POD 同工酶活性均明显低于对照；处理4和5上述各区POD同工酶活性却明显高于对照。

The results were as follows: 1.Inoculated on the induction medium at the late uninucleate stage,the microspores could initiate embryogenesis by first divisions in both symmetric and asymmetric patterns,but the former was predominant.

通过观察玉米小孢子胚胎发生的细胞形态学特征，发现：离体培养条件下单核后期的花粉可以通过均等分裂和不均等分裂两条途径形成胚状体，与前人的研究结果一致。

Osg6B, a promoter from rice, can direct gene expressing in anther tapetal during the early developmental stage of microspore from tetrad to uninucleate pollen, with high temporal and spatial specificity.

osg6B是来源于水稻花药绒毡层的特异性的启动子，它在小孢子发育的四分体时期至单核花粉期在花药绒毡层中特异启动基因的表达，它具有较为严紧的时空特异性。

Cytological observation Result showed that 54%-70% little spore stated in uninucleate stage when bud was long 2.0-3.0mm, Petal to anther was 1/2-4/5, this time was the best period for anther culture.

结果表明，当花蕾长为2.0~3.0 mm，花瓣与花药长度之比为1/2~4/5时，54%~70%的小孢子发育处于单核靠边期，最适合进行花药培养。

Microspore abortion of H9A occurred in the early uninucleate stage. The tapetum cells were in extreme hypertrophy so that tetrads were extruded to crack and break down and could not form normal uninucleate pollen grains; the abortion type was sporophyte.

结果表明，雄性不育材料H9A的小孢子败育发生在单核前期，由于绒毡层细胞极度膨胀，四分体受挤压后破裂并降解，无法形成正常的单核花粉粒，属于孢子体败育。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。