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tag gametes microbiology developmental biology

Collage of images including sperm, bacteria, coral, and an illustration of a researcher
Our Favorite Cell and Molecular Biology Stories of 2021
Jef Akst | Dec 2, 2021 | 3 min read
Beyond The Scientist’s coverage of COVID-19’s molecular underpinnings were many other stories highlighting the advances made in scientists’ understanding of the biology of cells.
Artist’s rendition of the molecular structure of a ribosome (blue and purple) as it produces a polypeptide chain (red) from an mRNA template (orange and gray), with tRNA molecules (dark purple) shuttling amino acids.
Specialized Sperm Ribosomes Are Key to Male Fertility in Mice
Dan Robitzski | Dec 15, 2022 | 4 min read
A previously unknown kind of ribosome is responsible for folding sperm proteins, which decay before fertilization if prepared by other ribosomes.
Genomic Methylation Collector
Beth Marie Mole | Oct 21, 2012 | 2 min read
A parasitic worm accumulates epigenetic DNA tags over its lifetime.  
The Role of Mom’s Microbes During Pregnancy
Carolyn A. Thomson and Kathy D. McCoy | Aug 1, 2021 | 10+ min read
Bacteria in the gut influence the production of antibodies and themselves secrete metabolites. In a pregnant woman, these compounds may influence immune development of her fetus.
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
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?
The AIDS Research Evaluators
Lynn Gambale | Jul 9, 1995 | 6 min read
Chairman: Arnold Levine, chairman, department of molecular biology, Princeton University Barry Bloom, Weinstock Professor and Howard Hughes Medical Institute (HHMI) investigator, department of microbiology and immunology, Albert Einstein College of Medicine, New York Rebecca Buckley, professor of pediatrics and immunology, Duke University Medical Center Charles Carpenter, chairman, Office of AIDS Research Advisory Committee; professor of medicine,Brown University School of Medicine Don
Top Ten Innovations 2011
The Scientist | Jan 1, 2012 | 10+ min read
Our list of the best and brightest products that 2011 had to offer the life scientist
Frontlines
David Bradley | Nov 24, 2002 | 6 min read
Frontlines Image: Erica P. Johnson Artificial cell signaling Cells rely on chemical signals triggered by external change to keep them informed. Christopher Hunter, Nick Williams, and colleagues at Sheffield University, England, tested the cells' abilities against a chemical system that transmits information signals into an artificial cell without a single molecule passing through the membrane (P. Barton et al., "Transmembrane signaling," Angewandte Chemie International Edition, 41:3878-81,
Human Pluripotent Cells Pass Safety Test
Douglas Steinberg | Sep 1, 2002 | 7 min read
Image: ©2001 MacMillan Publishers Ltd.  PLURIPOTENT-CELL PIPELINE: To obtain embryonic germ cells, researchers culture primordial germ cells (PGCs) dissected from the genital ridge. If left in situ, a PGC develops into spermatozoa or ova after its imprints have been erased and reestablished. Embryonic stem cells come from the blastocyst's inner cell mass. (Reprinted with permission, Nature 414:122-8, 2001) Because the science is hard and the politics mean, progress in understanding

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