NEWS FROM
PHYSIOLOGIA PLANTARUM
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Published monthly on behalf of SPPS by Wiley-Blackwell.
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Changes in atmospheric CO2 affect respiration efficiency
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The increasing atmospheric have resulted in a general increase in photosynthesis and biomass, but less is known about how plants adapt to this environmental change in terms of respiration. Now, scientists at University of Illinois at Chicago have taken up this issue by growing Arabidopsis thaliana plants adapted to Pleistocene sub-CO2 levels of 200 µl/l at current 360 µl/l CO2. The results show that these plants exhibited reduced respiration as compared to plants adapted to ambient CO2. The lower respiration rate was, however, not associated with a corresponding reduction in nitrogen content of the tissues. The results suggest, that plants adapt to changes in atmospheric CO2 by adjusting mitochondrial energy coupling and activity of the so called alternative pathway, where photosynthate is consumed in a less energy efficient way leading to lower ATP production.
Read full article free: Gonzalez-Meler et al (December 2009) Physiologia Plantarum 137: 473-484
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NEWS IN BRIEF
FROM OTHER JOURNALS
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Impoverished flora is susceptible to climate change
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Source: Winter et al (22 December 2009) PNAS 106: 21721-21725
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Cutting Down Deforestation in the Brazilian Amazon
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Source: Nepstad et al (4 December 2009) Science 326: 1350-1351
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Share your open positions and meetings!
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Don't forget to share your open positions and meetings on the SPPS homepage. From www.spps.fi
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Recently, SPPS introduced a new service to its members, so they can easily share open positions and meetings with the plant science community. Unfortunately, we have so far only received a few postings from you. We hope, however, that you will embrace the new service once you get used to it, and therefore we urge you to dig into it and try it out for your self. It is very easy to use, and you can post your positions or meetings on the web in just a few clicks. Check out this tutorial or read the short summary below and you will be ready to post!
On the SPPS homepage, click the 'Open Positions' tab to enter the new section. All open positions are listed in the column to the left, whereas you will find a form to enter a new position to the right. Fill in the form - making sure to type a correct email and internet address in the corresponding fields and to use no more than 1000 characters in the description. Then click "Post position". The system proof-reads the form and prompts you to fill in any empty fields. Even if everything is OK, you will still have the option to correct the information or even cancel your posting. When everything is filled in correctly, you will see your open position exactly as it will appear on the SPPS homepage - then just press Submit final position.
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It is also simple to share your meetings on the SPPS homepage. From www.spps.fi
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Basically the same procedure applies to posting a new meeting. You can find this section at the SPPS homepage under Meetings and Links. To give you an easy overview of relevant plant meetings and congresses, we have kept the information at this section to a minimum. Meetings are simply displayed by their name, location, start and end dates, and a link to obtain further information.
When you have submitted a new position or meeting it will be evaluated by the SPPS secretary in order to verify that it is genuine, i.e. not machine-generated in a spam-like fashion or not just made for fun. Approval will only take a short time, and after that it will appear on the SPPS homepage.
We hope that the members og SPPS, the readers of the SPPS Newsletter and all other with an interest in plant biology will embrace these two new features and make it a new dynamic meeting point for plant scientists.
Check out the new Open Positions and Meetings & Links sections here.
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