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Latest Photosynthesis Stories

Australian Soil Carbon Loss From Dust Storms And Erosion
2013-08-07 05:31:49

April Flowers for redOrbit.com - Your Universe Online A new study from The Commonwealth Scientific and Industrial Research Organization (CSIRO) of Australia shows that although topsoil is rich in nutrients and carbon, it is increasingly being blown away by events such as the "Red Dawn" in Sydney in 2009. The amount and location of soil carbon is changed when wind lifts carbon dust into the atmosphere. Some of the carbon falls back to the ground, some leaves Australia and some ends up in...

Purple Bacteria Survive Extreme Alien Light
2013-07-24 09:36:16

April Flowers for redOrbit.com - Your Universe Online Purple bacteria, which have been around longer than most other organisms on the planet, contain pigments that allow them to use sunlight as their energy source. Neil Johnson, a University of Miami (UM) physicist who studies these magenta microbes, recently discovered they can also survive in the presence of extreme alien light. The findings, published online in Nature's Scientific Reports, show the way in which light is received by...

Variations In Earth’s Carbon Dioxide Levels Regulated By Tropical Ecosystems
2013-07-23 13:25:45

CSIRO Rising temperatures, influenced by natural events such as El Nino, have a corresponding increase in the release of carbon dioxide from tropical forest ecosystems, according to a new study out today. The study, published in the journal Proceedings of the National Academy of Sciences, found that a temperature anomaly of just 1 degree C (in near surface air temperatures in the tropics) leads to a 3.5-Petagram (billion tonnes of carbon) anomaly in the annual CO2 growth rate, on...

New Variability In Iron Supply To The Oceans With Climate Implications Discovered By Scientists
2013-07-19 09:44:51

National Oceanography Centre, Southampton (UK) The supply of dissolved iron to oceans around continental shelves has been found to be more variable by region than previously believed -- with implications for future climate prediction. Iron is key to the removal of carbon dioxide from the Earth's atmosphere as it promotes the growth of microscopic marine plants (phytoplankton), which mop up the greenhouse gas and lock it away in the ocean. A new study, led by researchers based at the...

Trees Use Water More Efficiently Due To CO2 Rise
2013-07-11 08:01:38

redOrbit Staff & Wire Reports - Your Universe Online Trees are becoming more efficient at using water in response to higher atmospheric carbon dioxide levels, according to new research published Wednesday in the journal Nature. In the study, researchers including Dave Hollinger from the US Forest Service's Northern Research Station (NRS) and Trevor Keenan of Harvard University analyzed direct, long-term measurements of whole-ecosystem carbon and water exchange. According to...

2013-07-10 19:48:13

Researchers find that a changing atmosphere affects how much water trees require Spurred by increasing levels of atmospheric carbon dioxide, forests over the last two decades have become dramatically more efficient in how they use water, a Harvard study has found. Studies have long predicted that plants would begin to use water more efficiently as atmospheric carbon dioxide levels rose. A research team led by Research Associate Trevor Keenan and Assistant Professor of Organismic and...

2013-07-10 15:19:39

Photosynthesis takes place in specialized membrane systems, made up of stacked disks linked together by unstacked planar leaflets. An LMU team has now identified a protein that tucks the membrane in at the edge of each stack. By making use of sunlight to generate molecular oxygen and other energy-rich chemical compounds that other organisms can utilize as nutrients, photosynthesis provides the basis for almost all life on Earth. Radiant energy from the Sun is captured by pigment-protein...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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