Agar Desiccation inside incubator

Do some Staphylococcus aureus strains have in vitro antimycobacterial activity ?

Some Staphylococcus aureus strains Inhibit the growth of Mycobacteria in Mueller Hinton Agar medium containing 10% OADC. Do some Staphylococcus aureus strains have in vitro antimycobacterial activity?

29 July 2024 10,023 2 View

Pink bacterial colonies?

I am cloning an overexpression plasmid with my protein of interest tagged with mScarlet. After transforming my ligated product into DH5α bacteria and plating on LB agar, I noticed colonies with a...

22 July 2024 5,953 6 View

Should all lactic acid bacteria be catalase negative? should all probiotic bacteria be catalase negative?

I am working on probiotic bacteria for fish, and I am trying to isolate probiotic bacteria like lactic acid bacteria or other probiotics from the gastrointestinal tract of fish using different...

12 July 2024 3,756 4 View

Acid Rain and Spruce Bark Beetles now Climate Change, Monocultures, and desicated soil, what changed?

So were we wrong about acid rain in the 1980s? Can we be sure that the new story: Climate Change, Desiccated Soil, and Monocultures, is correct? Another alternative from the 1980s is the massive...

10 July 2024 4,667 7 View

Can we change blood agar in the mCIM and eCIM protocols?

In the modified carbapenem inactivation method (mCIM) and EDTA-carbapenem inactivation method (eCIM) protocols, can we replace blood agar with another culture medium?

10 July 2024 6,352 0 View

Collecting/storing plant stable isotope samples?

Hello! I am planning to collect plant leaf samples for stable isotope analysis. I will be collecting them from the field and storing fresh tissue on ice. I have heard that bringing along a food...

01 July 2024 9,125 1 View

Arabidopsis contamination in Hydroponic Culture ?

Hi I have a real problem growing Arabidopsis in hydroponic culture .I am using the bvoxes from Araponics and a Binder growth chamber with short day conditions and everything accurate .the seeds...

25 June 2024 9,151 6 View

Why I am not getting colony after transformation in Dh5alpha?

I am trying to do gibson assembly cloning. I have two fragments for gibson assembly cloning (plasmid backbone and insert). After gibson assembly reaction I have transformed this in E. coli....

19 June 2024 6,404 4 View

Pseudomonas aeruginosa colonies are too transparent: any tips on counting?

Hi everyone. I need to do a lot of colony counting tomorrow and when I was doing it today I’ve noticed that most of the colonies are too transparent - I have to shine bright light on them all the...

12 June 2024 711 3 View

Media Preparation protocol for Bifidobacteria Agar and Broth?

Hello everyone! I have been trying to develop a protocol for my thesis research which includes culturing and storing Bifidobacteria. I have come across many articles and studies related to the...

10 June 2024 4,152 1 View