苗端的原分生组织由原套、原体和叶原基组成。
The promeristem in the shoot apex consists of tunica, corpus and leaf primordium.
至第八对叶原基产生后,茎端分生组织才稍微隆起,细胞数目增多。
At the appearance of the eighth leaf primordia, SAM formed a bulge and had more cells.
其衍生细胞分化为原表皮、基本分生组织和原形成层。
The differentiation of the cells derived from the primordial meristem formed protoderm, ground meristem and procambium strand.
研究结果表明:根状茎顶端的原分生组织由4 ~7个鳞片包被。
The result showed that the primordial meristem at the tip of rhizome was surrounded by 4 ~ 7 bud scale.
原形成层在顶端分生组织之下叶原基起源的地方发生。
The procambium continuously develop to the apex after it arises from the place where the leaf primordia originates from below the apical meristem.
次生加厚分生组织起源于正常的散生维管束中柱外侧的薄壁组织细胞。
The secondary thickening meristem originated from the parenchyma cells, which were located the outside of the atactostele.
原形成层和基本分生组织的细胞比原表皮层细胞更加液泡化。
Cells of the procambium and ground meristem are more vacuolated than those of the protoderm.
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。
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.
顶端分生组织上的侧生突起发育成叶的原基,与原形成层有关。
Leaf buttress a leaf primordium, appearing as a protuberance on the side of the stem apex, produced by periclinal division of the tunica and corpus, and associated with a procambium.
花球是白色光滑的半球状结构,内部是短缩的分枝,表面是大量增生的分生组织。
Cauliflower curd is a white smooth semi-spherical structure, with shortened branches inside and a mass of proliferated meristems outside as surface.
维管形成层向两侧延伸直至形成一个茎内的分生组织环,各个维管束被束间形成层联系在一起。
The vascular cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium.
箭舌豌豆根瘤为杆形,主要由皮层细胞和一个体积很大,含有分生组织、侵染组织,有时还有衰老组织的中心区域所组成。
Vicia sativa root nodule is usually rod-shaped, it is mainly composed of many cortex cells and a very large central zone which contains meristem, infected tissue and senescent tissue.
芽的顶端分生组织与随后产生的根的分生组织共同构成胚状结构,与单子叶植物种子胚相似。
Embryo like structure was found being formed from shoot meristem and root meristem and it was similar with radicle and plumule of the embryo.
采用茎尖分生组织培养技术,获得了川麦冬的脱病毒试管苗。
Virus-free materials of Ophiopogon japonicus were obtained from meristem culture in vitro.
采用茎尖分生组织培养脱毒,繁殖、使用脱毒种薯是目前世界上解决种薯退化、提高单产的有效和主要途径。
The major and efficient way to promote potato yield and control the degradation of potato seed tubers in the world is to use the virus-free seed tubers propagated via shoot meristem culture.
以豫薯4号和豫薯12号为试材,研究了生长素类物质(IBA和NAA)、温度和光照时间对转移后甘薯茎尖分生组织培养成苗的影响。
Yushu 4 and Yushu 12 were used to study the effects of auxins(IBA and NAA), temperature and illumination time on plantlets regeneration from subcultured tip meristem in sweet potato.
原生分生组织是甘蔗地上部分一切组织形态发生中心,因此,研究原生分生组织的结构和生长分化对于阐明甘蔗的增粗机理具有重要意义。
It is very meaningful to study the thickening mechanism by studying on the structure of protomerism, growth and differentiation, which formed at the time histomorpho I ogy.
细胞学观察表明,培养后叶肉细胞明显增大,细胞分裂形成分生组织,由之形成芽原基。
Cytological observations showed that mesophyll cells were greatly enlarged, undergoing repeated cell divisions, then forming meristematic mass, from which buds were initiated.
采用茎尖分生组织培养技术,获得分蘖洋葱无毒试管苗。
Virue free in vitro shoots of Tillered onion were obtained from meristem tip apex tissue culture.
各种开花诱导途径能激活花分生组织特性基因,使茎端分生组织转变为花分生组织。
Distinct inductive pathways can activate the expression of flower meristem identity genes, thus cause the transition from shoot apical meristem to flower meristem.
中层区是由增殖能力旺盛的分生组织细胞所构成;
The middle region was composed of meristematic tissue whose cells had high proliferative activity (Plate Ib).
维管形成层属于侧生分生组织,包括能够产生次生木质部与次生韧皮部的纺锤状形成层原始细胞和产生髓射线的射线原始细胞。
It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth.
根尖的初生分生组织可扩大到伸长区下方一段距离。
The primary meristem of the root tip may be extended a section of distance below the elongation region.
该名词也用于指随后进一步发育的顶端分生组织。
The term is used particularly in relation to a part of the apical meristem that later differentiates further.
与棉花体细胞胚胎再生途径相比,棉花茎尖分生组织培养植株成苗的时间短,培养方法简单,也不受基因型的限制,适合作为基因转化的受体系统。
In comparison with embryogenesis, it is easy to get plantlets from shoot apical meristems, and it is suitable and convenience to be used as transformation system.
雄球花序中的不育胚珠和雄球花以及雌球花序中的胚珠均起源于环状总苞基部的分生组织。
The abortive ovules and male flowers in male cone inflorescence and the ovules in female cone inflorescence are originated from an annular meristem which differentiates from the base of each collar.
以东方百合品鳞片为外植体,采用MS培养基和不同外源激素配比,进行组织培养,研究其茎尖分生组织分化。
Meristem culture of Oriental Hybrid Lily through its scales was studied in MS medium with different external hormone treatments.
花由茎顶分生组织的少数细胞分化而来。
Flowers are differentiated from a few cells on the stem apical meristem of a plant.
积热也是测定落叶树和果树芽分生组织活动的有效手段。
Heat sum is. a useful measure of the onset of meris. ematic activity buds in deciduous and fruit trees.
原分生组织具有典型分生组织的细胞特征;
Promeristem possessed the typical cell characteristics of meristem.
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