植物的节

Epiphytic cactus of Brazilian ancestry widely cultivated as a houseplant having jointed flat segments and usually rose-purple flowers that bloom in winter.

源于巴西的附生仙人掌，作为室内盆栽植物而广泛栽培，有有节的茎干和冬天开的紫红色的花。

Their pollen grains are subspheroidal to spheroidal, and germination aperture is 3-colpate; pollen exine has punctuate to foveolate sculpture; it is easy to distinguish exine and intine except S.

各种植物花粉外壁超微结构的特征在旌节花属两个组中较一致，但其差异可作为探讨属下种的分类和系统学关系的依据。

Coralloid roots A type of root regularly produced by cycads, which contains symbiotic nitrogen-fixing cyanobacteria in root nodules, giving the roots a knobbly coral-like appearance.

珊瑚状的根：由苏铁类植物产生的一种类型的根，根瘤中含有共生的固氮蓝细菌，使根形成珊瑚状的有节的形状。

At present, regeneration system of cotyledons, hypocotyls, and stems, protoplasts and cotyledons codes have been established among Cucurbitaceae. There are several methods of transformation, such as agrobacteria -medidated genetic, particle gun, pollen tube passage, DNA soaking, ovary embryonary sac injection. Transgenic is tending to antivirotic and delayed maturity. Selection marker used often is NPT II.

目前，在葫芦科植物中已建立了子叶、茎尖、胚轴、茎段、原生质体和子叶节等的再生体系；用于遗传转化的方法有农杆菌介导法、基因枪法、花粉管通道法、DNA浸泡法等；用于转化的目的基因多为抗病毒病基因和延迟成熟的基因；NPTII基因为最常用的筛选标记基因。

Result The results revealed that different concentration of C6-HSL could obviously inhibit the growth rate of root and the number of roots, but have no effects on plant height, number of nodes and leaf size. The POD and SOD activities and the concentration of H2O2 showed a significantly increased when the potato implants were pretreated with C6-HSL, however, no effect of C6-HSL pretreatment on PAL and PPO activities were found. The ability of resistance aginst Erwinia carotovora subp. carotovora was signifinantly improved after treated by C6-HSL. Incidence was obviously lower than the control group.

结果］不同浓度的C6-HSL能明显抑制马铃薯的出根率和生根数，而对株高、茎节数及叶片大小没有影响；植物标志性防御酶类中POD和SOD的活性以及H2O2的产生量经C6-HSL诱导后显著提高，而PAL和PPO的活性则没有明显变化；抗病试验中，经C6-HSL诱导的马铃薯植株能有效抑制胡萝卜软腐欧文氏菌的侵染，发病率明显低于对照组。

Objective: To observe the changes of ultrastructure in the superior cervical ganglionic cell of diabetic rats and the effect of the administration of Silymarin.

目的 通过对糖尿病模型大鼠颈上交感神经节细胞超微结构的改变及应用水飞蓟素后对其影响的观察，探讨了水飞蓟素防治糖尿病植物神经病变的临床意义。

Sugarcane is an important sugar crop, and a high effective photosynthesis C4 species. The accumulation of phenomenal concentrations of sucrose by sugarcane Saccharum officinarum L.

甘蔗是一种重要的糖料作物，同时也是一种高光效的C4植物，其成熟茎节中积累高浓度蔗糖的机制已经成为了研究的热点。

Today it overflows with rapeseed, a tall, gnarled weedlike plant bursting with coarse yellow flowers that has become a new manna for European farmers: rapeseed can be turned into biofuel.

今天，这里却长满了油菜花，一种高高的、多节的类似杂草的、盛开野黄花的植物。它已经成为上帝赐给欧洲农民的一种新的作物：因为油菜籽能被转变为生物燃料。

Data were collected related to plant growth (stem length and number of internodes) and yield.

收集相关的植物生长（茎杆的长度和节间的数量）及产量的数据。

In order to reduce the cost of the mowing lawn grass,the experiment on the chemical control technology application to the lawn grass was conducted in 2005.uniconazole at 25,50 and 75 mg/L,chlormequat at 200,300 and 400 mg/L,mepiquqt at 200,300 and 400 mg/L,B9 at 200,300 and 400 mg/L were sprayed on ryegrass grown in pats and their effects on growth rate and quality of ryegrass were investgated.

为了减少草坪修剪费用，将化控技术应用于草坪，通过对盆栽黑麦草分别施用25，50，75 mg/L的烯效唑，200，300，400 mg/L的矮壮素，200，300，400 mg/L的缩节胺和1 000，1 500，2 000 mg/L的比久，研究了植物生长延缓剂对草坪草生长速率和品质的影响。

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。