查询词典 meristem

Vacuolation in the ground meristem of torpedo-stage embryo began the process of histodifferentiation.

鱼雷形胚基本分生组织中液泡的出现开始了组织分化的过程。

There were some important discovery in structure character as the follows: in sarcotesta that materials making experiment, all possessed the structure of bandshape and like primary thickening meristem; sarcotesta possessed amphivasal vascular bundle and the vascular bundle that xylem distribute in two sied of phloem on inside and outside were discovered; new structure patterns of root that possessed more plentiful secondary cortex etc.

其中，发现外种皮中均具明显的似初生增厚分生组织的带状结构；且发现在外种皮的组织中具有双木维管束及周木维管束，发现了苏铁科植物根具较丰富的次生皮层等新的结构形式；在对比材料鳞秕泽米铁的羽片中发现了导管，这些在苏铁植物方面过去均未见有报道。

WOX3 specifies the cell fate at the margins of cotyledonary primordia and regulates the rate of cell division in the margins of meristem in Arabidopsis.

阿拉伯芥的PRS/WOX3基因参与子叶原基边缘细胞专一性的决定，及调控分生组织边缘细胞分裂的速度。

Calyptogen A layer of meristematic cells covering the root apical meristem in some plants(e.g. grasses) that gives rise to and maintains the root cap.

根冠原：在一些植物中覆盖根顶端分生组织的一层具有分生能力的细胞，根冠原可以产生和维持根冠。

The results showed that OsMADS8/7 transcripts are first detected in branching primordia, then in spikelet meristem primordia.

我们以OsMADS8基因为切入点，利用组织原位杂交，RNAi技术对水稻中的E类基因进行了深入的研究。

In the plant vegetative growth, leaf primordia arise from groups of initial cells within the peripheral zone of the shoot apical meristem.

叶是植物进行光合作用的器官。为了适应自然环境，植物叶在漫长的进化过程中发展成今天这样的千姿百态。

In osmads34, however, the main-axis meristem produced about 17 branch primordia, and the spikelet number in one panicle was reduced to 133, suggesting OsMADS34 is critical for controlling the inflorescence development in rice.

但在osmads34突变体中，主轴分生组织产生17个分支原基。同时，突变体的小穗数目却从野生型水稻的194朵减少到133朵。

The results show that the secretory ducts are schizogenous cavity which are only distributed in the stem and the leaf.The initial of the secretory duct drives from the ground meristem.

结果表明，分泌道为裂生腔隙，只分布于茎和叶中；分泌道原始细胞起源于基本分生组织；分泌道原始细胞团裂隙的扩大靠鞘细胞的插入和上皮细胞自身的切向伸长；成熟的分泌道呈圆形或椭圆形，由一层上皮细胞和其外的1 ～2 层鞘细胞包被。

LFY-like genes play important role in plant development, when they were first isolated from mutants of Antirrhinum and Arabidopsis, they were thought to be "SAM-specific-determinating-genes", regulating the transition from inflorescence to flower meristem. However, further research revealed that LFY-like

LFY类基因在植物形态建成过程中具有重要作用，根据其突变体的特征，曾一度被认为是在花分生组织和花序分生组织中特异表达的&分生组织特征决定基因&，控制花序分生组织向花分生组织的转变。

Observations from the paraffin dissection showed that, the anatomical structures of treated upland rice root tip cells changed obviously, such as the arrangement confusion of cells from apical root meristem, quiescent center and root cap, increased middle lamella, the increased width and reduced elongation of cortex parenchyma cells, and the large numbers of slough off epidermis cells.

石蜡切片的结果表明，和对照相比，化感物质处理后的旱稻幼苗根尖的解剖结构发生了明显的变化，主要表现在顶端分生组织、静止中心和根冠的细胞排列混乱，细胞间隙加大，皮层薄壁组织细胞变得短而粗，以及表皮层细胞大量脱落等。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐