Holding your breath
tos20060914
Cell 126, 969-980 (2006). Cell Press 8 September 2006 | Article Abs |
Holding your breath
Take a deep breath and hold it longer; use one hand to pinch your nose shut…you will have to choose a way to hold yourself underwater or escape from a heavy smoke. Surprisingly, a famous model plant of Arabidopsis also can do like people. Evidence found by researchers from Michigan State University shows that this plant can close its stomas for safe when the stomatal guard cells sense pathogenic bacteria…
Wildtype Arabidopsis thaliana plant and the SEM image of the flower
Scanning electron microscopy image, artificially coloured. Arabidopsis is approximately 5 mm in size.
SEM image © Jürgen Berger, Electron Microscopy Unit, Max Planck Institut
Source: http://ec.europa.eu/research/quality-of-life/arabidopsis.html
Reproduced by Scidea Sketch 2006 www.ScideaNews.com
tos20060914
Science 311. 1471-1474 (2006). Science 10 March 2006 | Article Abs |
Crazy folding
A protein is a long polymer of amino acids whose sequence is determined by the genetic code of DNA. If under unfavorable conditions, proteins misfolding (or unfolding) and aggregating will cause numerous human diseases. Recently, by introducing a few of misfolded polyglutamine proteins, researchers from RIBR of Northwestern University unexpectedly killed their lab's Caenorhabditis elegans worms. Should this fatal misfolding be an alternative pathway for understanding the pathogenesis of chronic neurological diseases?
maniac protein 2006
Credit: Scidea Art 2006 Source: www.ScideaNews.com
* Lin Pu is in the Physics Department of Nanjing University, Nanjing 210093, CHINA.
References
1 | Melotto, M., Underwood, W., Koczan, J., Nomura, K., and He S. Y. Plant Stomata Function in Innate Immunity against Bacterial Invasion. Cell 126, 969-980 (2006). Cell Press 8 September 2006 | Article Abs | |
| 2 | Gidalevitz, T., Ben-Zvi, A., Ho, K. H., Brignull, H. R., Morimoto,R. I. Progressive Disruption of Cellular Protein Folding in Models of Polyglutamine Diseases. Science 311. 1471-1474 (2006) Science 10 March 2006 | Article Abs | |
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