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Cell Biology News
Wed, 17 Oct 2018 14:09:33 EDT
Pupil's brain recognizes the perfect teacher
Human and avian youngsters learn behaviors by imitating adults. But learners are selective in who they copy, and scientists don't understand how they choose the right teacher. Young male zebra finches must learn to copy the song of an adult male to mate, but juveniles won't imitate songs played through a loudspeaker or sung by other species of birds. New findings show how the juvenile birds identify the right teacher.
Wed, 17 Oct 2018 08:07:57 EDT
Penetrating the soil's surface with radar
Ground penetrating radar measures the amount of moisture in soil quickly and easily. Researchers' calculations from the data informs agricultural water use and climate models.
Tue, 16 Oct 2018 15:42:41 EDT
Sex or food? Decision-making in single-cell organisms
Unicellular diatoms are able to adapt their behavior to different external stimuli based on an evaluation of their own needs. In experiments, Seminavis robusta diatoms directed their orientation either towards nutrient sources or mating partners, depending on the degree of starvation and the need to mate.
Tue, 16 Oct 2018 13:20:12 EDT
Public opinion on GMOs might impact similar technologies in stores
Researchers have found that an individual's perception of genetically modified organisms might impact their judgments about whether or not nanotechnology-enabled products should be labeled in stores.
Tue, 16 Oct 2018 09:44:22 EDT
3D imaging opens door to better understanding of fascinating leaf complexity
Leading biologists launch global rallying cry to overhaul theoretical models of carbon-water exchange and photosynthesis using 3D imaging.
Mon, 15 Oct 2018 15:06:46 EDT
How beetle larvae thrive on carrion
The burying beetle Nicrophorus vespilloides buries the cadavers of small animals to use them as a food source for its offspring. However, the carcass is susceptible to microbial decomposition. Researchers show that the beetles replace harmful microorganisms with their own beneficial gut symbionts, thus turning a carcass into a nursery with a microbial community that even promotes larval growth.
Mon, 15 Oct 2018 11:35:35 EDT
Biomaterials with 'Frankenstein proteins' help heal tissue
Biomedical engineers have demonstrated that, by injecting an elastic biomaterial made from ordered and disordered proteins, a scaffold can form that responds to temperature and easily integrates into tissue.
Mon, 15 Oct 2018 11:35:24 EDT
Unravelling the genetics of fungal fratricide
Selfish genes are genes that are passed on to the next generation but confer no advantage on the individual as a whole, and may sometimes be harmful. Researchers have, for the first time, sequenced (or charted) two selfish genes in the fungus Neurospora intermedia that cause fungal spores to kill their siblings. Unexpectedly, the genes were not related to each other, perhaps indicating that selfish genes are more common than previously thought.
Mon, 15 Oct 2018 10:45:45 EDT
Cellular 'tuning mechanism' builds elegant eyes
Scientists discover a molecular 'brake' that helps control eye lens development in zebrafish.
Mon, 15 Oct 2018 10:45:42 EDT
The tightest non-aminoglycoside ligand for the bacterial ribosomal RNA A-site
A research group has made a significant discovery with positive implications for the development of bacteria-fighting drugs. The aminoacyl-tRNA site (A-site) of the 16S RNA decoding region in the bacterial ribosome looks promising for a new era of antibiotic drug development.
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