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Article Abstract
cells can mount a number of responses to nutritional deprivation but ultimately either form dormant spores or enter a metabolically quiescent state. In a recent article (mBio 10:e01414-19, https://doi.org/10.1128/mBio.01414-19, 2019), R. Hashuel and S. Ben-Yehuda report on a novel means by which nutrient-starved cells escape from aging (days-old) colonies by accumulating mutations enabling them to continue growth under nutrient-limited conditions. They postulate that such a strategy may be a major factor determining the dynamics of bacterial populations in natural environments.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6819663 | PMC |
| http://dx.doi.org/10.1128/mBio.02461-19 | DOI Listing |
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Article Synopsis
- In nature, walking can be hard for animals because of bumpy ground that can make them trip or stumble.
- Researchers studied how a robot leg can be made to better handle obstacles by changing its stiffness, much like how insects and birds move.
- They discovered that using special techniques called virtual compliance allowed the robot to walk over obstacles more successfully, improving its performance by over 70% compared to other methods.