Questions tagged [bacteriology]
A subdivision of microbiology dedicated to the study of bacteria.
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Why are serial dilutions required for Most Probable Number method?
I'm a freshman in microbiology and molecular genetics so I am still starting on the basics.
I've completed an experiment to estimate the population size of lactose fermenting microorganisms in river ...
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Do non-pathogenic bacteria inject proteins into human cells?
Many pathogenic bacteria can inject proteins into human cells to manipulate their activities. For example, The type III secretion system (T3SS) is widely expressed in gram-negative bacteria and can ...
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I also have been wondering what type of insect this was. I live in Louisiana
Just wondering if they bite? Also I have had a some kind of insect that tends to dive bomb me while I'm in the bathroom, could it be this one?
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Why do some bacteria and parasites retain the endosomal membrane during infection?
Some intracellular bacteria and parasites (such as malaria parasites) can enter our cells via endocytosis. But they never shed the endosomal membrane and multiply inside. As a result, they have to ...
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What concentration of alcohol (and/or) exposure time would be required to make contaminated water safe to drink or would inhibit bacterial growth?
QUESTIONS
What concentration of alcohol (and/or) exposure time would be required to make contaminated water (e.g. with cholera) safe to drink?
What concentration of alcohol would be required to ...
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How to explain this difference in the type of cytokine produced by helper T cells due to the way of infection?
Several rats were divided into two groups $A$ and $B$. The rats in group $A$ had staphylococcus aureus daubed on their ears, while the rats in group $B$ had staphylococcus aureus injected into their ...
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How fast do germs typically travel across food?
There are lots of easily searchable resources on how fast germs get transmitted to food via direct contact (essentially instantly). But I've never seen any discussion of how fast germs travel across ...
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Techniques to image Obelisks inside bacteria? [closed]
BGR's Feb. 1, 2025 Researchers just discovered an entirely new class of life living inside humans links to Jan. 21, 2025 Zheludev et al. BioRvix Viroid-like colonists of human microbiomes which is now ...
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Unknown bacterial culture
I had taken a sample of bacteria from my toilet bowl and allowed it to grow on an agar plate. After 3 days, it now has a number of colonies and smells really bad. This was originally for my school ...
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How can metagenomic analysis be used to determine the native habitat of a bacterial species?
Background
A native habitat refers to the natural environment in which a particular species or organism has evolved and to which it is best adapted.
In the context of bacteria or other microorganisms, ...
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How are sewage, sludge and wastewater natural environments?
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Acinetobacter species can be isolated from such natural environments
as surface water, wastewater and sewage, healthy human skin, plant,
animal and food material as well as domestic appliances.
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I accidentally plated DH5a E. coli and left them in the 4℃ for 12 hours, if I put them into the 37℃ incubator will they start growing?
I started ligation of my constructs late last night and was super tired, since I used all of my ligation mixture I would rather not have to re-ligate.
I did my transformation procedure as follows:
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Is the presence of a specific gene in one bacterial species enough to conclude it has the same function in another species within the same genus?
I was wondering if the answer should be more or less conclusive given the following givens and some of their implications that I feel by gut feeling could play a role in the answer:
The species ...
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Is bacterial "colonization" restricted to human body surfaces not the deep tissues?
This seems to be the point where the perspective of human beings from a medical viewpoint intersects with that from an ecological perspective.
Colonization is the presence of bacteria on a body ...
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Post-Translational Modification in insulin production
When searching "How is insulin produced commercially" on Google, most results simply say something along the lines of "The insulin gene is inserted into a bacteria, which then express ...
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