20 Result(s)
within
Li zhu
Life Sciences
English
Microbial Genetics and Genomics
-
Article
Open AccessDisease-induced changes in bacterial and fungal communities from plant below- and aboveground compartments
The plant microbes are an integral part of the host and play fundamental roles in plant growth and health. There is evidence indicating that plants have the ability to attract beneficial microorganisms through...
-
Article
Open AccessImproving the production of carbamoyltobramycin by an industrial Streptoalloteichus tenebrarius through metabolic engineering
Tobramycin is an essential and extensively used broad-spectrum aminoglycoside antibiotic obtained through alkaline hydrolysis of carbamoyltobramycin, one of the fermentation products of Streptoalloteichus tenebra...
-
Article
Optimization of welan gum extraction and purification using lysozyme and alkaline protease
Welan gum, a natural polysaccharide produced by Sphingomonas sp. ATCC 31555, has attracted considerable attention in the scientific community due to its desirable properties. However, challenges, such as high vis...
-
Article
Open AccessBioinformatic analysis of structures and encoding genes of Escherichia coli surface polysaccharides sheds light on the heterologous biosynthesis of glycans
Surface polysaccharides (SPs), such as lipopolysaccharide (O antigen) and capsular polysaccharide (K antigen), play a key role in the pathogenicity of Escherichia coli (E. coli). Gene cluster for polysaccharide a...
-
Article
New two-stage pH combined with dissolved oxygen control strategy for cyclic β-1,2 glucans synthesis
On the basis of a novel two-stage pH combined with dissolved oxygen (DO) control strategy in fed-batch fermentation, this research addresses the influence of pH on cyclic β-1,2-glucans (CβGs) biosynthesis and ...
-
Article
Transcriptomic analysis reveal the responses of dendritic cells to VDBP
Vitamin D binding protein (VDBP) is an essential plasma carrier protein, which plays possible roles in reproductive health, disease and so on. However, the effects of VDBP on immunity have not been fully studied ...
-
Article
New high-density fermentation method for producing high molecular weight polysialic acid based on the combination fermentation strategy
Polysialic acid (PSA) is a long-chain linear amino polysaccharide with broad application prospects; however, its relatively low molecular weight limits its application range. This study aims to explore a new f...
-
Article
Open AccessA genome wide association study for the number of animals born dead in domestic pigs
The number of animals born dead, which includes the number of mummified (NM) and stillborn (NS) animals, is the most important trait to directly quantify the reproductive loss in domestic pigs. In this study, ...
-
Article
Analysis of culturable microbiota present in the stomach of children with gastric symptoms
Despite extensive studies on the gastric microbiota, including Helicobacter pylori and non-H. pylori, the bacterial composition in children remains unknown. In this study, we analyzed the culturable gastric bacte...
-
Article
Open AccessTranscriptome-wide N 6 -methyladenosine methylome profiling of porcine muscle and adipose tissues reveals a potential mechanism for transcriptional regulation and differential methylation pattern
N 6 -methyladenosine (m6A) is the most prevalent internal form of modification in messenger RNA in higher eukaryotes a...
-
Article
Open AccessGenome-wide DNA methylation changes in skeletal muscle between young and middle-aged pigs
Age-related physiological, biochemical and functional changes in mammalian skeletal muscle have been shown to begin at the mid-point of the lifespan. However, the underlying changes in DNA methylation that occ...
-
Article
Open AccessComplete genome sequence and comparative genomic analyses of the vancomycin-producing Amycolatopsis orientalis
Amycolatopsis orientalis is the type species of the genus and its industrial strain HCCB10007, derived from ATCC 43491, has been used for large-scale production of the vital antibiotic vancomycin. However, to dat...
-
Article
A novel third chromosomal locus controls susceptibility to Autographa californica multiple nucleopolyhedrovirus in the silkworm, Bombyx mori
Baculovirus demonstrates specific infection spectrums and thus one certain host exhibits particular response to single baculovirus isolate. Autographa californica multiple nucleopolyhedrovirus (AcMNPV) is conside...
-
Article
Establishment of a soaking RNA interference and Bombyx mori nucleopolyhedrovirus (BmNPV)-hypersensitive cell line using Bme21 cell
The double-stranded RNA (dsRNA) mediated RNA interference (RNAi) is widely employed in silkworm and its tissue-derived cell lines for gene function analysis. Baculovirus expression vector system (BEVS) has an ...
-
Article
A new effective process for production of curdlan oligosaccharides based on alkali-neutralization treatment and acid hydrolysis of curdlan particles in water suspension
Biologically active β-1,3-oligosaccharides with rapidly growing biomedical applications are produced from hydrolysis of curdlan polysaccharide. The water-insoluble curdlan impedes its hydrolysis efficiency whi...
-
Article
Soaking RNAi-mediated modification of Sf9 cells for baculovirus expression system by ectopic expression of Caenorhabditis elegans SID-1
RNA interference (RNAi) is a biological phenomenon that silences the expression of genes of interest. Passive double-stranded RNA (dsRNA) uptake has been uniquely observed in Caenorhabditis elegans due to the exp...
-
Article
Open AccessBreed, sex and anatomical location-specific gene expression profiling of the porcine skeletal muscles
Skeletal muscle is one of the most important economic traits in agricultural animals, especially in pigs. In the modern pig industry, lean type pigs have undergone strong artificial selection for muscle growth...
-
Article
A new polysialic acid production process based on dual-stage pH control and fed-batch fermentation for higher yield and resulting high molecular weight product
To determine the factors influencing the resulting molecular weight of polysialic acid (PSA), batch fermentations by using Escherichia coli were conducted. It was found that temperature and pH were significant fa...
-
Article
Removal of l-alanine from the production of l-2-aminobutyric acid by introduction of alanine racemase and d-amino acid oxidase
l-2-Aminobutyric acid can be synthesized in a transamination reaction from l-threonine and l-aspartic acid as substrates by the action of threonine deaminase and aromatic aminotransferase, but the by-product l-al...
-
Article
Open AccessIdentification and target prediction of miRNAs specifically expressed in rat neural tissue
MicroRNAs (miRNAs) are a large group of RNAs that play important roles in regulating gene expression and protein translation. Several studies have indicated that some miRNAs are specifically expressed in human...
