How can I prevent gene expression before collecting microorganisms by centrifugation?

Hy everybody, I am looking for a way to stop gene expression during harvesting of microalgae to ensure reliable RNAseq in response to temperature. I am affraid working on ice and performing...

25 November 2020 7,282 3 View

How to increase the efficiency of overexpression using lentiviral TET-ON system in primary kidney cancer cells?

I am using a lentiviral TET-ON system for conditional overexpression of my gene of interest in primary kidney cancer cells. I use viral load from transfection of HEK293T cells after 48 and 72...

16 November 2020 2,496 1 View

Very minimal researches published on online businesses even though online businesses is gaining moment world wide due to ease access of the internet?

Very minimal researches published on online businesses even though online businesses are gaining momentum world wide due to ease access of the internet?

22 May 2018 4,022 3 View

How to examine the surface morphology of membrane using SEM in cross section?

What kind of substrate is used to fix the membrane to examine the c/s image?

01 December 2017 4,988 5 View

What is the maximum solubility of RNA ?

I am looking for publications (or patents) stating the solubility of RNA (either total RNA, tRNA, whatever the species) in water or in saline solutions. Thanks for helping me !

19 September 2017 9,880 5 View

Can someone provide a protocol for building yeast strains using Tet-Off expression system?

I am trying to express my gene of interest using a Tetracycline inducible vector. Although I need my gene of interest of be off and only be turned on for a short period of time when needed, I only...

07 July 2017 3,994 19 View

How to troubleshoot qPCR primer optimizations?

I am having some issues with primer optimization for qPCR. Typically, I first test various concentrations of primers to figure out which concentrations gives the best melting curves and the lowest...

17 January 2017 9,923 2 View

Xylan from beechwood discontinued by Sigma-Aldrich

28 August 2016 3,993 7 View

Hi! can anyone help me identify this plant from a lake in the Philippines which is constantly being affected by fish kill?

07 January 2016 2,793 3 View

Do plasmids need to be CIP treated for plasmid religation assay?

I am trying an experiment in which I measure the NHEJ efficiency of a mutant yeast strain and compare to wild-type to analyze whether the mutation affects the NHEJ process. I take a low copy...

16 December 2015 2,586 3 View

How does the gut microbiome affect the fibrotic process within the liver?

and Can the gut microbe be used for the treatment or diagnosis of liver fibrosis?

02 March 2021 557 2 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

How to remove the residual PDMS on the silicon mold?

Incompletely cross-linked pdms are difficult to remove.

01 March 2021 798 3 View

The reason that the culture of white fungi Contamination with green mold(Trichoderma), the culture autoclave at121 for 15 min. What is it?

Is the period to autoclave not enough? The inoculation in a hood and flame and UV and alcohol.

27 February 2021 9,356 3 View

What is the most suitable medium of ascomycetes fungi ??

What is the most suitable medium of ascomycetes fungi ??

26 February 2021 4,413 1 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

How to indicate the degree of litter decomposed by microbes?

Any technique could detect the degree of litter decomposed by microbes? Or any indexes could do this job? I want to split the contribution of microbes during decomposition, so any suggestions...

23 February 2021 1,362 5 View

Can I get information about research laboratories that are currently having in culture, internationally/locally standardised microorganisms?

Microorganisms of interest include; E.coli; Salmonella typhimurium; Pseudomonas aeroginosa; Streptoccocus pneumoniae; Staphyloccocus aureus and Candida albicans. Locations closer to Port...

18 February 2021 6,500 3 View

Can 5-FOA Diffuse Through Agar?

I am preparing to do a gene knockout in the filamentous fungi Coccidioides posadasii targeting pyrG/URA3 so that 5-FOA can be used for selection pressure instead of traditional antibiotic...

16 February 2021 169 4 View

Any specific reason, how sclerotium rolfsii can grow out of Petridish?

Is it related to nutrition or any other reason? Any other fungus have similar kind of growth pattern?

09 February 2021 4,357 4 View