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tag race culture microbiology ecology cell molecular biology

Microscopic image of a live amoeba.
Illuminating Specimens Through Live Cell Imaging
Charlene Lancaster, PhD | Mar 14, 2024 | 8 min read
Live cell imaging is a powerful microscopy technique employed by scientists to monitor molecular processes and cellular behavior in real time.
bacteria and DNA molecules on a purple background.
Engineering the Microbiome: CRISPR Leads the Way
Mariella Bodemeier Loayza Careaga, PhD | Mar 15, 2024 | 10+ min read
Scientists have genetically modified isolated microbes for decades. Now, using CRISPR, they intend to target entire microbiomes.
Artist’s rendition of red SARS-CoV-2 coronaviruses floating near blue strands of DNA.
COVID-19 Infections May Reshape Genetic Landscape
Holly Barker, PhD | Mar 30, 2023 | 3 min read
SARS-CoV-2 infection triggers structural changes in the host cell’s DNA, which provide a molecular explanation for long COVID, a new study suggests. 
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?
Of Cells and Limits
Anna Azvolinsky | Mar 1, 2015 | 9 min read
Leonard Hayflick has been unafraid to speak his mind, whether it is to upend a well-entrenched dogma or to challenge the federal government. At 86, he’s nowhere near retirement.
Opinion: Constrain Speculation to Protect the Integrity of Science
Mike Klymkowsky | Jun 18, 2018 | 4 min read
What we can know about biology before the last universal common ancestor is limited—and we should be circumspect in filling in the gaps.
Rapid antigen tests for SARS-CoV-2
Are Rapid Tests Worse at Detecting Omicron—and Does It Matter?
Catherine Offord | Jan 14, 2022 | 10 min read
Anecdotal reports and results from small studies on the diagnostics’ accuracy have prompted questions about the devices’ usage with the new variant, but researchers say more data are needed and emphasize the continued importance of SARS-CoV-2 testing.
Biological Terrorism
Jennifer Fisher Wilson | Nov 11, 2001 | 8 min read
One warning came in black-and-white in 1993: A U.S. Congressional Office of Technology Assessment report projected that releasing 100 kilograms of aerosolized anthrax spores upwind of the U.S. capital could kill between 130,000 and 3 million people-a lethality at least matching that of a hydrogen bomb. Last year, a U.S. Justice Department exercise revealed that discharging pneumonic plague in Denver could create 3,700 or more cases, with an estimated 950 or more deaths within a week.1 Then, acco
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.  
Forthcoming Books
The Scientist Staff | Aug 9, 1987 | 3 min read
BIOLOGICAL SCIENCE Modern Biotechnology S B Penrose. Blackwell Scientific: September, 200 pp, $24.95. Provides detailed information on recombinant DNA technology, industrial microbiology, monoclonal antibodies, and plant and animal cell culture; includes a discussion of the legal, social and ethical issues surrounding biotechnology. EARTH SCIENCE Deformation of Sediments and Sedimentary Rocks (No. 28). M.E. Jones and R.M.F. Preston, eds. Blackwell Scientific: September, 360 pp, $90. Reports

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