次級絲 的英文怎麼說
中文拼音 [cìjísī]
次級絲
英文
secondary filament-
Cells only the chromatin or chromosomes are heavily stained, the other components are bleached. after the chromosomes are stained by nama - ur, we have observed that the highest order structure of chromosomes is helical ; while the secondary structure is radically folding. the dna fibres with a diameter of 2530 nm have radically folded into chromatid fibres in a diameter of approximately 250 nm
染色體經dna特異染色后，觀察到其最高層次結構是螺旋的，而次級結構存在著放射環結構，即由直徑為2530 nm的dna纖絲放射狀折疊排列成約250 nm左右的染色單體絲染色單體絲進一步螺旋形成中期染色體結構。Polysaccharide of mycelia from phellinus igniarius cultured by shaking were studied. lg9 ( 34 ) orthogonal experiment were carried out to find the optimum method of extracting polysaccharide from mycelia. the magnitude of range indicated that the factors which effected extracting ratio were times, time, temperature and proportion
本文對液體培養桑黃菌絲體的主要活性成分多糖進行了研究，首次利用lg9 （ 3 ~ 4 ）正交試驗法對桑黃菌絲體多糖的提取工藝進行研究，從級差的大小可以看出影響桑黃菌絲體粗多糖提取率的因素主要是浸提次數，其次分別是浸提時間、吉林農業大學碩士學位論文桑黃主要生物學特性及多糖的研究浸提溫度、浸提比。
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