http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Plants are anything but as defenceless as they might seem. Various plant hormones work together to specifically fend off attacks. Dutch researcher Antonio Leon-Reyes has now shown how these hormones cooperate. By 'consulting' with each other plant hormones determine which defence mechanism they shall set in motion. http://www.physorg.com/news171137116.html Biology Thu, 03 Sep 2009 09:10:01 EST news171137116 Scientists have discovered a naturally occurring compound that triggers a plant's immune system, thereby protecting the plant from a secondary bacterial infection. http://www.physorg.com/news157900895.html Biology Thu, 02 Apr 2009 14:22:01 EST news157900895 (PhysOrg.com) -- Castoreum, the dried scent glands of the Canadian beaver, was once one of the most valuable scent components derived from animals. Castoreum contains a complex mixture of substances, including a number of compounds known as nupharamine alkaloids. Many of these have been structurally characterized. Researchers working with Horst Kunz at the University of Mainz (Germany) have now, as they report in the journal Angewandte Chemie, determined the stereochemistry (precise spatial structure) of another castoreum component by using a total synthesis. A total synthesis is the complete chemical synthesis of a complex organic natural substance from simple, easily attainable starting materials. http://www.physorg.com/news154009419.html Chemistry Mon, 16 Feb 2009 12:24:13 EST news154009419 Scientists in the United Kingdom are reporting new evidence that humans can make their own salicylic acid (SA) - the material formed when aspirin breaks down in the body. SA, which is responsible for aspirin's renowned effects in relieving pain and inflammation, may be the first in a new class of bioregulators, according to a study in the December 24, 2008 issue of ACS' biweekly Journal of Agricultural and Food Chemistry. http://www.physorg.com/news151004405.html Chemistry Mon, 12 Jan 2009 17:40:05 EST news151004405