配体

In the Filicinophyta, Sphenophyta, and Lyophyta the embryo sporophyte produces a footlike structure that remains embedded in the tissues of the parent gametophyte plant, absorbing nutrients like the suspensor of higher plants.

在真蕨门 filicinophyta ，楔叶门 sphenophyta，和石松门 lycophyta 中，胚胎孢子体产生足状结构，仍然包裹于双亲配子体植物内。胚胎吸收营养的方式同高等植物从胚柄那样吸收营养一样。

DNA C-values might be one of important indices in the evaluation of angiospermous invasiveness. To test this viewpoint, we compared DNA 1C-values and basic genome sizes in 3,676 angiosperms. The results suggest that:(1) the two nuclear values vary greatly among different groups, e.g., significantly higher in herbs than in trees, in monocots than in dicots, in perennials than in non-perennials;(2) the two nuclear values both have significant effects on plant invasiveness, especially in herbs, dicots, monocots, perennials, non-perennials, diploids, polyploids, Compositae, and Poaceae, while not significant in trees and Fabaceae.

DNA C值与被子植物入侵性密切相关，为考察应用DNA C值评估被子植物入侵性的可靠性和局限性，我们统计分析了全世界范围内3676种被子植物的DNA 1C值（配子未发生DNA复制时的染色体DNA含量）及基因组大小（单个染色体组的DNA 含量），结果表明：1）DNA 1C值和基因组大小在被子植物不同类群中差异极大，例如在草本植物中显著高于木本植物，单子叶植物显著高于双子叶植物，多年生植物显著高于非多年生植物；2）两项指标都与被子植物入侵性显著负相关，尤其是在草本植物、双子叶植物、单子叶植物、多年生植物、非多年生植物、二倍体、多倍体、菊科和禾本科中，然而在木本植物、豆科植物中其与植物入侵性无显著关系。

Chondrite-normalized REE patterns are right-inclined, and the REE distribution patterns for skarn and ores are similar to those of the Tongguanshan quartz monzodiorite, which indicates that the hydrothermal fluids of the skarn deposit in the study area were mainly derived from dioritic melt.

稀土元素球粒陨石标准化组成模式为右倾型，夕卡岩，矿石的稀土配分曲线类似于铜官山岩体石英二长闪长岩，故认为形成本区的夕卡岩型矿床的热液流体主要来源于闪长质熔体。

Polysaccharides from wild tetraspotophytic and female gametic thalli of Gracilaria lemaneiformis (denoted as TP and FGP respectively) were extracted with hot water and a comparative study was made on their chemical characteristics and structures.

对青岛野生龙须菜四分孢子体和雌配子体中多糖的化学特性和结构进行了比较研究。

On the basis of results of our test,we suggest that low temperature pretreatment changes content of endogenous IAA and iPA of anther,thus interrupts previous developmental direction of pollen and induces microspores develop from a gametophytic way to a sporophytic way.

根据实验结果，推测低温预处理改变了花药内源IAA和iPA含量，阻断了花粉原来的发育方向，使其由配子体的发育途径转向孢子体的发育途径。

The arm repeat-containing 1 (ARC1) and the skp1-cul1-F-box proteins, belonging to the family of E3 Ub ligases, function in both the sporophytic and gametophytic self-incompatible responses, respectively.

自交不亲和反应也正是通过此途径实现的，ARC1(arm repeat containing 1)和SCFs (skp1-cul1-F-box-proteins)作为E3s分别在孢子体自交不亲和和配子体自交不亲和反应中起作用。

It is for the first time found that the liquid hypoeutectic Al-Fe alloy has a critical temperature of 920℃ in the curve of the cluster size to temperature. Below 920℃ the structural change is predominantly in the medium-range order, while in the short-range order above 920℃.

首次发现，亚共晶Al-Fe合金熔体的原子团簇尺寸等在920℃左右存在明显的变化。920℃以下熔体结构的变化以原子团簇尺寸即中程尺度参数的变化为主，而920℃以上则以配位数等短程序参数的变化为主。

Sulfide precursors were synthesized by conventional inorganic metal salts and a sulfurizing agent. Sulfide catalysts were prepared by isochoric impregnation using an impregnation solution containing sulfide precursors and a dispersion additive.

以常规金属无机盐及硫化剂为原料合成硫化物前驱体，在硫化物前驱体溶液中加入添加剂配成浸渍液，浸渍载体制成硫化型加氢催化剂。

According to cpx-melt equilibrium pressure, the xenoliths types and simulating calculating of host rock REE partition pattern, source of sodic basalts is garnet lherzolite mantle, and the source of potassic basalt is metasomatic fluid altered phlogopite-containing garnet lherzolite mantle. For the alkaline basalts to sub-alkaline basalts, the melting degrees of the source rocks are 4%～15%.

根据单斜辉石—熔体平衡压力计算、所携带的包体类型及玄武岩稀土元素配分曲线的非实比部分熔融定量模拟表明，钠质玄武岩的来源为石榴石二辉橄榄岩源区，五大连池钾质玄武岩的源区是被交代的含金云母石榴石二辉橄榄岩源区，研究区碱性玄武岩到亚碱性玄武岩是石榴石二辉橄榄岩源区经4％～15％部分熔融程度的产物。

In order to trace the male cytoplasm transmission during double fertilization process, the mature gametophyte, zygote, proembryo and primary endosperm in Pelargonium hortorum Bailey and Rhododendron mucronulatum Turcz were investigated using transmission electron microscope and DNA staining technique.

本研究应用透射电镜及DNA荧光技术对天竺葵和杜鹃的成熟配子体以及在受精以后雄性细胞器的存在和分布进行了系统的细胞学研究，阐明了这两种植物中雌性生殖单位的超微结构特点及雄性和雌性细胞中质体和线粒体在受精作用中的传递。

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。