March 12, 2010
Technique adapted to each conditionMs Epelde investigated, above all, pseudometalophyte plants - which grow in mining environments -, and the reaction they have to metals. To begin with, she linked Lanestosa of the thlaspi caerulescens species with zinc and cadmium. Lanestosa is a traditional mining town in the Encartaciones region near Bilbao and its namesake plant has optimum conditions for continuous phytoextraction (a process for differentiating metal from the rest of the elements). According to the research, it is capable of withstanding great concentrations of metal and also of accumulating considerable quantities of zinc and cadmium in its tissues that are in contact with the air. As with hyperaccumulator species such as this, large-sized plants are also effective. For example, sorghum has great potential for phytoextracting zinc and cadmium. On the other hand, to phytoextract soils contaminated by lead, Ms Epelde opted for combining plants and chemistry, on the one hand using thistle (a plant of large dimensions) and, on the other, a chelating agent. She tested them with two chelating substances: EDTA and EDDS and concluded that, while EDTA is more effective for phytoextraction and less toxic for thistle plants, EDDS is less toxic for the soil microbian community and biodegrades rapidly.In highly contaminated soils (zinc, cadmium and lead), Ms Epelde, instead of extraction, opted for stabilisation with grass crops, to this end using lolium perenne (ryegrass) and fertiliser. Particularly effective is cattle purine as it enhances the properties of the mining soils and reduces the toxicity of metals. Finally, Ms Epelde combined three species of plants with different strategies for tolerance to metals, in order to see how they worked together. The three were thlaspi caerulescens (Alpine pennycress), rumex acetosa (sorrel) and festuca rubra (red fescue). It was shown that this technique has a great future. In fact, the thlaspi caerulescens causes the growth of the other two species and the rumex acetosa extracts more zinc when operating in conjunction with the thlaspi caerulescens. Microbiological properties as indicator
Global NGO Provides Vitally Needed Surgery and Medical Care in Port-au-Prince Millwood, VA (PRWEB) August 18, 2011 Project HOPE volunteers will arrive in Haiti on Friday to provide medical care for underserved communities, in collaboration with the U.S. Navy on the hospital ship, the USNS Comfort, which ...
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NASA Dryden Flight Research Center awards $10M 5 year safety, health, and environmental on-site support services contract to Integrated Science Solutions, Inc. Walnut Creek, California (PRWEB) August 19, 2011 NASA-Dryden Flight Research Center, California has awarded a $10M, 5-year on-site support services contract to Integrated Science Solutions, ...
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Bruce Trask and Angel Roman of MDE Systems Inc. will be delivering a Model Driven Engineering tutorial at the 15th International Software Product Line Conference 2011 (SPLC 2011) in Munich Germany on the 22nd of August 2011 Bronx, New York (PRWEB) August 19, 2011 Bruce Trask and ...
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Syngene, a world-leading manufacturer of image analysis solutions today introduced its new GENi2 gel documentation system, the next generation version of its affordable motorized GENi range. This point and press system is ideal for scientists wanting to produce accurate images of fluorescent DNA gels, as well as ...
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San Francisco natropathic doctor Paul Lynn reveals the results of his years of research on combating the effects of aging. His simple solution is already sitting in most households: baking soda. (PRWEB) August 19, 2011 Anti-aging doctor Paul Lynn recently announced his findings that the secret to ...
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Highly Reliable Systems has a new high performance, 9TB backup cartridge called a RAIDPac for their RAIDFrame product line. Reno, Nevada (PRWEB) August 19, 2011 Highly Reliable Systems has announced a high performance, high capacity backup system based on a RAID5 removable cartridge. Each removable “RAIDPac” ...
When a male rat senses the presence of a fetching female rat, a certain region of his brain lights up with neural activity, in anticipation of romance. Now Stanford University researchers have discovered that in male rats infected with the parasite Toxoplasma, the same region responds just as strongly to ...
