查询词典 apical meristem

In the course of the differentiation and development, some new characters of morphogenesis were found, and the mechanism of early development of rudimentary panicle were understood further, with which recent progress made in angiosperm shoot apical meristem structure and function were discussed.

同时，在研究过程中还发现了一些与前人所不同的形态发生特征，并初步探讨了水稻幼穗早期的起源及分化发育的机理。

Maintenance of stem cell number in shoot apical meristem is essential for the generation of later organs.

植物顶端分生组织中干细胞数量的维持对于侧生器官的发生至关重要。

Histogen theory A theory, proposed by Hanstein, in which the apical meristem is considered to consist of three main zones, the dermatogen, periblem, and plerome, which differentiate into the epidermis, cortex, and stele respectively.

组织原学说：是由 Hanstein 提出的理论，认为顶端分生组织是由三个主要区域组成，表皮原、皮层原和中柱原，随后它们各自分化为表皮，皮层和中柱。

Intercalary meristem A region of actively growing primary tissue clearly separate from the apical meristem.

居间分生组织：是被顶端分生组织隔离开的有旺盛生长能力的区域。

In cotyledon, on one hand, very weak GUS staining was observed in PARF8:GUS, but very strong was found in phyA-209 PARF8:GUS. In the shoot apical meristem, hypocotyle and root tip, on the other hand, phyA-209 PARF8:GUS exhibited weaker GUS activity than PARF8:GUS. Interestedly the same expression patterns of ARF8 resulting from disruption of PhyA have been observed in dark, white-light and far-red-light conditions.

结果表明，无论在黑暗、白光和远红光条件下，PhyA突变均明显提高幼苗子叶和叶片中ARF8的表达水平，但明显降低幼苗下胚轴、茎尖和根尖中的表达水平。

The term is used particularly in relation to a part of the apical meristem that later differentiates further.

该名词也用于指随后进一步发育的顶端分生组织。

Protoderm The outermost layer of the apical meristem: the tissue that develops from the tunica initials of the apical meristem and gives rise to the epidermis and, in some plants, the root cap.

原表皮：指顶端分生组织的最外层：在植物中由起源于顶端分生组织的原套发育而来，并形成表皮。在根中，则形成根冠。

Mutants related to shoot branching are isolated in pea? Arabidopsis? petunia? rice? tomato and maize, such as revoluta? pinhead? monoculm1(moc1)? lateral suppressor? blind/torosa related to axillary meristem initiation; more axillary growth? ramosus? decreased apical dominance associated with axillary meristem outgrowth; supershoot/bushy? Teosinte branched1 (Tb1) contacted with axillary meristem initiation and outgrowth.

在豌豆、拟南芥、矮牵牛、水稻、番茄和玉米中获得到很多与分枝发育相关的突变体，如与腋生分生组织的形成有关的revoluta、pinhead、monoculm1(moc1)、lateral suppressor、blind/torosa等突变体；与腋生分生组织的生长有关的more axillary growth、ramosus、decreased apical dominance等突变体；与腋生分生组织的形成和生长都有关的、supershoot/bushy、teosinte branched1(tb1)等突变体。

Three major embryonic tissue systems,shoot apical meristem,root apical meristem,and the differentiation of procambial strands,were visible in torpedo-stage somatic embryo.

三种主要的胚性组织系统包括芽顶端分生组织，根顶端分生组织和原形成层束在鱼雷形胚阶段清晰可见。

The embryo consists of a hypocotyls-root axis, with a rootcap and apical meristem at one end and an apical meristem and several cotyledons, or seed leaves, at the other.

胚胎有胚桥-根轴，藉由 rootcap 和顶上的分裂组织在一端和一个顶上的分裂组织和一些子叶或种子树叶，在另一个。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。