源底 meaning in Chinese
the very beginning source or basis
Examples
- Green fluorescent protein has several good characters . under excitation of long uv light or blue light , it emits green fluorescence without requiring any exogenous substrates and cofactors . gfp gene expression can be used to monitor gene expression and protein localization in living cells and organisms . this is a development of revolutionary significance . the dna sequence of this gene can be re - engineered by mutagenesis and the gfp will get improved fluorescent properties . the applications of gfp will be wider and wider
绿色荧光蛋白具有优良的特性，在蓝光或长紫外光的激发下，不需要任何外源底物或内源辅助因子的参入就能发出绿色荧光.绿色荧光蛋白基因的表达可用来监控活细胞或生物体中基因表达和蛋白质的定位.这是一个革命性的进展.而且，对基因dna序列的改造有可能使绿色荧光蛋白的发光特性更加优良，从而其应用范围会更加广泛 - At the same time , the result of the functional diversity of soil microbial community indicated that soil microbial metabolism quotient ( awcd ) , microbial community richness and shannon index all decreased significantly in red soils polluted by cadmium and lead compared with non - polluted soils . these results suggested the structure of microbial community have changed , decreased the functional diversity of microbial community , and reduced the microbial number utilizing different carbon resources
Biologgn测试结果显示，镉、铅污染红壤微生物群落代谢剖面( awcd )及群落丰富度、多样性指数均显著低于非污染土壤，表明重金属污染引起了土壤微生物群落功能多样性下降，减少了能利用有关碳源底物的微生物数量、降低了微生中义摘要物对单一碳源底物的利用能力，最终导致土壤微生物群落功能多样性发生变化。