子囊

At the reproductive stage, RA68 was expressed in the inflorescence meristem, the tip of rachis branch, spikelet primordia, macrospore sac and pollen grains.

原位杂交分析结果表明：在幼苗期RA68主要在幼芽胚芽鞘的内外层细胞和幼叶原基的表层细胞中表达；转入生殖生长期后，在花序分生组织、枝梗原基顶端、花器官原基、大孢子囊和花粉粒中表达。

An immature seed; the megasporangium and surrounding integuments of a seed plant.

胚珠 Ovule 未成熟的种子；种子植物的大孢子囊及其周围的被层。

Pollination The transfer of pollen from the anther to the stigma in angiosperms, and from the sporangiophores to the micropyle in gymnosperms.

授粉：指在被子植物中花粉从花粉囊转移到柱头上，在裸子植物中从小孢子囊转移到珠孔。

Mucor produced by formation of a domeshaped septum cutting off the sporangium from the sporangiohore.

在孢子囊的中央形成一个中空的腔，其外一层薄壁就叫做囊轴。

Type genus of the Psilophytaceae: genus of small wiry herbaceous Paleozoic plants with underground rhizomes and ''.

裸蕨科的模式属；古生代植物，为小而坚韧的草木，具地下根状茎和顶生的孢子囊群。

Whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs.

蕨类植物；由松叶蕨科或裸蕨纲组成；无根脉管植物，叶仅部分分化或缺乏，孢子囊发育较差。

Each perithecium has a round base of diameter 130-200 microns with a neck up to 800 microns long.

每个子囊壳的圆形基部直径130-200微米，颈长达800微米。

It is a real straw bacteria strain of the Cordyceps sinensis plants perithecium Block and its parasitic bat moth larvae, such as the combination of the body.

它实际是麦草菌科植物冬虫夏草菌的子囊座及其寄生蝙蝠蛾等的幼虫尸体的结合体。

Stomia The site at which a sporangium or pollen sac ruptures to release the spores or pollen.

裂口：孢子囊或花粉囊的开裂位置，小孢子或花粉粒从中散出。

It resembles the psilophyte Rhynia from the Rhynie chert of the Devonian period.

库克逊蕨属有无叶的纤细二叉分支状的茎，成熟孢子囊和孢子充分角质化，该植物与在泥盆纪 Rhynie 燧石中找到的裸蕨中的羊角蕨属很相像。

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。