The molecular building blocks that make up DNA absorb ultraviolet light so strongly that sunlight should deactivate them – yet it does not. Now scientists have made detailed observations of a "relaxation response" that ...
General Physics
Jun 23, 2014
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Each cell in an organism has a sensor that measures the health of its "internal" environment. This "alarm" is found in the endoplasmic reticulum (ER), which is able to sense cellular stress and trigger either rescue responses ...
Cell & Microbiology
Sep 17, 2013
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Drought resistance is the key to large-scale production of Jatropha, a potential biofuel plant—and an international group of scientists has identified the first step toward engineering a hardier variety.
Biotechnology
Jul 15, 2013
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Plants can't swat a bug or run away from one, but that doesn't mean that plants can't fight back. Plants have evolved unique and sophisticated immune systems to defend themselves against insects and pathogens. Plant hormones ...
Biotechnology
May 23, 2013
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Simply getting anything into space is tough, but doing so against a strict deadline can be really stressful. Researchers in an ESA laboratory nervously checked the clock as they extracted immune cells – beginning a full ...
Space Exploration
Apr 25, 2013
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Scientists have confirmed that the pathogen that causes Lyme Disease—unlike any other known organism—can exist without iron, a metal that all other life needs to make proteins and enzymes. Instead of iron, the bacteria ...
Biochemistry
Mar 21, 2013
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Researchers at Johns Hopkins have established a high-efficiency cell-cell fusion system, providing a new model to study how fusion works. The scientists showed that fusion between two cells is not equal and mutual as some ...
Cell & Microbiology
Mar 7, 2013
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Researchers at the University of California, San Diego School of Medicine have identified a molecular mechanism regulating autophagy, a fundamental stress response used by cells to help ensure their survival in adverse conditions.
Cell & Microbiology
Jan 17, 2013
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For much of her professional life, Dr. Susan Rosenberg has studied the puzzling response of bacteria to stress and the mutations that result. In the current issue of the journal Science, she puts together the pieces of that ...
Cell & Microbiology
Dec 6, 2012
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Salk scientists have identified a unique molecular signature in induced pluripotent stem cells (iPSCs), "reprogrammed" cells that show great promise in regenerative medicine thanks to their ability to generate a range of ...
Cell & Microbiology
Sep 19, 2012
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