rachis
英
美
n. 脊柱；分脊；花序轴，叶轴；羽轴
英英释义
noun
- the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
- the fall broke his back
- axis of a compound leaf or compound inflorescence
双语例句
- Via the study for the regeneration of the folioles and rachis of the compound leaf, rachis is selected for the genetic transformation.
通过对刺槐复叶中小叶和叶轴两部分的再生试验，确定刺槐的叶轴作为本试验进行遗传转化的受体材料。 - Total amount of choline and betaine in the anther was significantly higher than that in the glume and rachis.
花药中的胆碱类物质含量显著高于颖壳和穗轴中的含量。 - Spadix rachis flat, margin with bract-like appendages; flowers small, monoecious, in 2 series on rachis, apetalous.
肉穗花序轴扁平，边缘有苞片状附属物；花小，单性，雌雄同株，呈2列排列于花序轴上，无花被。 - The explants of perianth and ovary require higher amount of auxins than that of rachis, pedicel and peduncle.
但花被、子房较花序轴切片及花柄需要较高的激素用量。 - Spinal cord is to be located in the organization of a kind of nerve among rachis.
脊髓是位于脊柱中间的一种神经组织。 - Its anthotaxy is spica, and amphimixis flowers is serried inserted on the thick rachis.
穗状花序，两性花密集着生于粗大的花轴上。 - It showed that the vascular bundle system of rachis in wheat changed apparently under water deficit.
表明水分亏缺显著改变了小麦穗轴维管束系统的显微解剖结构。 - Two QTL controlling primary rachis branches were identified and they were co located with 2 of the 3 QTL for vascular bundles respectively.
2个控制一次枝梗数的QTL效应较小，但分别与控制穗颈维管束数的2个QTL同位。 - Comparative Anatomic Studies on Rachis of Eight Species of Cycads
八种苏铁植物叶轴的比较解剖研究 - The study discovered that there are assimilating tissue which like the shape of palisade tissue in adaxial surface of rachis in all species of Cycas.
研究还发现苏铁科种类的叶轴的近轴面均像叶片那样具有栅栏组织状同化组织存在。