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Morphological variations of a manganese-oxidizing microorganism Metallogenium observed in the developmental process of cultures collected from Lake Biwa waters
Bacteria Fungus Manganese
2009/4/1
Blackish brown particles of manganese oxide usually derived from the microorganism Metallogenium were observed for the first time in November, 2002 at the center of the north basin of Lake Biwa off Im...
Red重组系统及在微生物基因敲除中的应用--The Red Recombination System and Its Application to Gene Knock-out in Microorganism
Red重组系统 基因敲除 抗药性基因 Red recombination system gene knock-out resistant gene
2007/12/5
在完成了对各种微生物基因组的测序以后，功能基因学的研究变得尤为重要。研究基因功能最直接的方法便是将待研究的基因失活。最初构建基因突变体是采用大肠杆菌的RecA系统，但是RecA重组系统操作复杂，重组效率低。最近建立了Red重组系统，该系统由3个蛋白组成：α蛋白(即λ核酸外切酶)，β蛋白，Gam蛋白。应用Red系统进行基因敲除，可以直接利用线性打靶DNA，两侧同源臂长度在35~60 bp即可发生同源...
Screening and Characterization of Lactate Dehydrogenase-producing Microorganism
Lactobacillus Lactate Dehydrogenase Direct-fed Microbials
2016/4/18
The objective of this work was to isolate a microorganism, able to produce high lactate dehydrogenase (LDH) activity, for use as a microbial feed additive. The LDH is an important enzyme for lactate c...
Treatment of Microencapsulated β- Galactosidase with Ozone : Effect on Enzyme and Microorganism
Ozone Treatment Microencapsulation Lactase Milk
2016/4/8
The present study was designed to examine the effect of ozone treatment in microencapsulated ß-galactosidase on inactivation of the enzyme and sterilization of microorganism. The efficiency was t...