无根、茎、叶分化的植物体。
Thallus a plant body undifferentiated into stem, root, or leaf.
每个半球又进一步分化为四个区域或叶。
It is further divided into four regions, or lobes, in each hemisphere.
那么这些细胞是如何分化并形成像根、茎、叶和果实那样不同的结构的呢？
How then can these cells differentiate and form structures as different as roots, stems, leaves, and fruits?
间叶干细胞能够分化成为骨、软骨或脂肪细胞。
Mesenchymal stem cells can differentiate into bone, cartilage or fat cells.
研究结果证实脊索瘤中既有上皮组织分化的特点又有间叶组织的表现，还存在着具有多潜能分化的恶性干细胞群体。
Some cells were multipotential neoplasms cells in which the stem cells were capable of differentiation along both epithelial and mesenchymal pathways.
不同品种的叶龄指数所对应的雄、雌穗分化各时期是基本一致的。
Leaf number index right should the spike differentiation all stages within different variety were very similar.
以12个玉米品种为材料，在春播与夏播条件下进行玉米叶龄指数与穗分化期回归关系的试验研究。
With 12 maize varieties used as materials, the regression relationship between the leaf number index and spike differentiation were studied under the spring and summer sowing.
结果表明：从新梢顶端到第9个展开叶之间的芽处于生理分化期，花芽生理分化期分为成花诱导期和花芽孕育期。
The results presents that buds from the shoot apex to the 9th unfolding leaves were in the period of physiological differentiation which can be divided into flower induction and flower initiation.
结论：单侧腺叶加峡部切除术加或不加颈淋巴结清扫应作为原发灶局限于一侧腺叶的分化型甲状腺癌的首次手术治疗方式。
CONCLUSIONS: Unilateral lobectomy plus isthmectomy with or without cervical lymph node dissection should be recommended as the first treatment for DTC with primary focus localized in unilateral lobe.
叶肉没有海绵组织和栅栏组织的分化，但叶尖部和叶中部中脉附近的叶肉细胞常伸长，类似栅栏组织细胞。
The mesophyll is not differentiated into spongy and palisade tissues, but mesophyll near midrib in tip and middle parts of leaf is often lengthened to appear as palisade-liked tissue.
结果肿瘤含有横纹肌样细胞、原始神经外胚层、上皮及间叶多向分化成分。
Results The tumor containing rhabdoid cells, variable components of primitive neuroectodermal, epithelial and mesenchymal components.
组织细胞样细胞可演变为泡沫细胞和多核、单核的瘤巨细胞，另见少量未分化间叶细胞。
The histiocyte-like ce- lls may be transformed into foamy cells, mononucleated or multinucleated tumor giant cells. Undifferentiated mesenchymal cells were rarely seen.
在干旱和弱光两种抑花处理条件下，对紫苏花芽生理分化期叶内核酸、内源激素含量变化进行了研究。
Britte were exposed to water deficit stress and low light intensity during flower bud differentiation and the levels of endogenous hormones and nucleic acids in their leaves were determined.
目的探讨宽叶缬草在脂质肾损害肾小管上皮细胞转分化中的作用。
Objective To evaluate the possible effects of valeriana officinalis var latifolia(VOL) on transdifferentiation of renal tubular epithelial cells in hypercholesterolemic rats.
瘤状体顶端由芽原基形成苗端，分化出生长点、原基、叶和腋芽原基。
The top of tumour-body formed shoot apex from bud primordium, and differentiated growing point, leaf primordium. young leaf and axillary bud primordium.
结果显示花原基分化和开花的起始节位是第一真叶节；
The results showed that the differentiation of floral primordium and flower firstly occurred at the axil of the first leaf.
主茎出叶与穗分化有良好对应关系。
There was a good corresponding relationship between the main stem leafing and the spike differentiation.
一般认为，专食性的跳甲亚科和萤叶甲亚科是由食性较广的叶甲亚科进化而来的，食性分化在其中可能起了重要作用。
It is generally believed that Alticinae and Galerucinae, the specialists, are of recent origin from Chrysomelinae accompanying feeding differentiation which is thought to be important in the process.
那些可进行光合作用和所维生的细胞呈线形结构，但原植体则无根、茎、叶的分化，无输导组织。
The photosynthetic and supportive cells tend to be organized linearly, but a thallus lacks such differentiated specialized structures as stem, leaves, and conducting tissue.
本研究也提示了诱导间叶干细胞分化成为骨细胞的一种可能方式，这对于治疗骨病的再生医学而言可能具有长远的影响意义。
"This study also suggests a possible way to induce mesenchymal stem cell differentiation into bone cells, which may have long-term implications for regenerative medicine for bone disease, " Hung said.
目的：观察七叶洋地黄双苷滴眼液对翼状胬肉成纤维细胞生长分化的影响。
OBJECTIVE: To observe the effect of Esculin and Digitalis Glycosides Eye Drops on the proliferation of the fibroblasts of pterygium.
但由于致病菌小种分化多，而且不断变异进化，寻找新的高抗广谱抗白叶枯病基因仍是热点研究领域。
But, for the reason of kinds of bacteria and variation, a new resistance gene with high resistance and broad-spectrum is still the hot spot researchers interested in.
而中等、弱冬性品种三种色素的峰值均出现在叶色转变后的花茎伸长期，最低值出现在花茎分化期。
Moreover, the content of three pigment in the strongest winter species was significantly higher than the other two winter species from the beginning of differentiate period of stem.
通过对2 0世纪后半叶的荔枝产量和气候资料的统计分析，确定了气候对荔枝花芽分化影响最大的关键期及气候指标。
Based on the statistic analysis of the lychee yield and climate data in the last 50 years of 20 century, the key stage and temperature index in the lychee bud differentiation is determined.
方法：采用HPLC、NMR、IR、MS等方法，对红豆杉叶醇浸膏中分离精制所得的部分化合物进行结构鉴定。
Methods The compounds were isolated by HPLC. Their structures were identified by IR, MS, NMR spectral respectively.
方法：采用HPLC、NMR、IR、MS等方法，对红豆杉叶醇浸膏中分离精制所得的部分化合物进行结构鉴定。
Methods The compounds were isolated by HPLC. Their structures were identified by IR, MS, NMR spectral respectively.
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