NEWS FROM
PHYSIOLOGIA PLANTARUM
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Published monthly on behalf of SPPS by Blackwell Publishing.
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Cellular copper transport
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Transport of copper, manganese and other essential metals within plants involves the secretory system, but only little is known about the exact mechanisms. Now, a team of researchers from University of Copenhagen has been looking into the role of the so called transmembrane nine (TM9) proteins. They are critical for cell adhesion and phagocytosis, and it has been shown in other organisms that mutants are disturbed in vesicle trafficking. The Danish researchers, headed by Jan K. Schjørring, used elemental profiling by inductively coupled plasma mass spectrometry (ICP-MS) to evaluate copper homeostasis. Yeast devoid of any TM9 homologues was 75% reduced in cellular copper content (while manganese was 50% increased), whereas yeast overexpressing one of the homologues almost doubled its copper content. A heterologous TM9 from Arabidopsis thaliana was also able to boost cellular copper by about 40%. In none of the cases, vacuolar morphology was affected, so the authors propose that copper is transported by TM9 proteins through the secretory pathway by other means than vacuolar fusion and biogenesis.
Read full article free: Josefine Hegelund et al (December 2010) Physiologia Plantarum 140: 355-367
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NEWS IN BRIEF
FROM OTHER JOURNALS
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Genetically crippled pathogens
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Source: Laura Baxter et al (10 December 2010) Science 330: 1549
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Genetics of leaf form
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Source: Piazza et al (2 December 2010) Current Biology doi: 10.1016/j.cub.2010.11.037
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Preliminary program for the SPPS Congress in Stavanger 2011
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The preliminary program in very condensed form showing only the scientific lectures. You can downloaded the complete program here. Courtesy Simon Geir Møller.
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A preliminary program for next years SPPS Congress in Stavanger has been completed and can be downloaded here. To the right is a small-print and very condensed program covering only the scientific lectures - for information on speakers, registration, breaks, excursions etc in a more readable format, please click the link above.
Simon Geir Møller, who is heading the organizing committee, is proud to present 7 high profile plenary speakers (marked with green in the figure) as well as 5 invited talks (orange). The rest of the scientific program is divided into 14 sessions (blue) covering all aspects of plant physiology. The sessions will be carried out two-and-two in parallel. The vast majority of speakers have already been confirmed and a final program will be available when the rest are confirmed.
Looking forward to seeing you in Stavanger next summer!
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