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tag bacterial toxin culture evolution

Different colored cartoon viruses entering holes in a cartoon of a human brain.
A Journey Into the Brain
Danielle Gerhard, PhD | Mar 22, 2024 | 10+ min read
With the help of directed evolution, scientists inch closer to developing viral vectors that can cross the human blood-brain barrier to deliver gene therapy.
bacteria inside a biofilm
How Bacterial Communities Divvy up Duties
Holly Barker, PhD | Jun 1, 2023 | 10+ min read
Biofilms are home to millions of microbes, but disrupting their interactions could produce more effective antibiotics.
The Scientist Staff | Mar 28, 2024
A scanning electron micrograph of a coculture of E. coli and Acinetobacter baylyi. Nanotubes can be seen extending from the E. coli.
What’s the Deal with Bacterial Nanotubes?
Sruthi S. Balakrishnan | Jun 1, 2021 | 10+ min read
Several labs have reported the formation of bacterial nanotubes under different, often contrasting conditions. What are these structures and why are they so hard to reproduce?
Monitoring Mutations with Microfluidics
Ruth Williams | Mar 15, 2018 | 3 min read
A device dubbed the “mother machine” enables real-time observation of mutagenesis in single bacterial cells.  
Pseudomonas Aeruginosa
Cooperation and Cheating
Mariella Bodemeier Loayza Careaga, PhD | Jun 1, 2023 | 6 min read
Bacteria cooperate to benefit the collective, but cheaters can rig the system. How is the balance maintained?
Evolution, Resisted
Elie Dolgin | Oct 1, 2009 | 10+ min read
Scientists are trying to design the last malaria control agent the world will ever need.
Mining Bacterial Small Molecules
L. Caetano M. Antunes, Julian E. Davies and B. Brett Finlay | Jan 1, 2011 | 10 min read
By L. Caetano M. Antunes, Julian E. Davies and B. Brett Finlay Mining Bacterial Small Molecules As much as rainforests or deep-sea vents, the human gut holds rich stores of microbial chemicals that should be mined for their pharmacological potential. animate4.com ltd. / Photo Researchers, Inc. Companies spend huge resources going to the far reaches of the Earth to search for the next blockbuster. But we need look no further than our own intestines, which are p
Landscape illustration
Horizontal Gene Transfer Happens More Often Than Anyone Thought
Christie Wilcox, PhD | Jul 5, 2022 | 10+ min read
DNA passed to and from all kinds of organisms, even across kingdoms, has helped shape the tree of life, to a large and undisputed degree in microbes and also unexpectedly in multicellular fungi, plants, and animals.
Spite: Evolution Finally Gets Nasty
Stuart Blackman(sblackman@the-scientist.com) | Dec 19, 2004 | 6 min read
The body of a caterpillar is the site of both a great feast and a gruesome familial struggle.

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