Systemic acquired resistance (SAR) offers a distinct ability to plants to protect themselves against invading pathogens through a series of signal transduction mechanisms which are activated upon expression of genes linked to SAR. Scientists are now using the potential of such…
This disease has affected all varieties of the plant across the African peninsula and it causes withering of the leaves, premature ripening of the fruit and finally rotting of the whole plant. There are no commercially available chemical or bio-control agents to prevent the spread of the disease. However, in the present study scientists have infused the plant ferredoxin-like amphipathic protein or the hypersensitive response-assisting protein genes from green pepper in to the banana plant to produce a transgenic banana which showed a strong resistance to the BXW disease under laboratory conditions. It is believed that these genes are expressed when cells come in to contact with the bacteria and the resulting hypersensitive reactions kills the cells thereby preventing the further spread of the disease. In addition the response generated also activates the defense mechanism of adjacent and distant uninfected crops against the disease thus resulting in a systemic acquired resistance against the bacterium. Thus these novel proteins provide enhanced resistance to plants and help them to effectively prevent the spread of infections by pathogens. The article deals with the concept of systemic acquired resistance and the potential application of genes that confer such resistance in preventing diseases in plants. The acquisition of systemic resistance to pathogens by plants has great economic value as millions of farmers across the globe would be benefitted through it.
International Institute of Tropical Agriculture. “Genes from Sweet Pepper Arm Banana Against Deadly Wilt Disease.” Science Daily, 4 August 2010. Web. 17 November 2010. http://www.sciencedaily.com/releases/2010/08/100804080624.htm
Nanotechnology which was constricted to the field of electronics and engineering until recently has now found immense utility in the field of biomedical sciences. Rapid research is underway to tap the potential utility of these particles in the field of medical and ...
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This article juxtaposes the anticipated growth in Australia’s export business with the European debt crisis. The article implies that whereas the European debt crisis is expected to have a negative impact on international business, it will apparently not prevent Australia’s export business from growing in 2011-12 period.
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Two different types of media include tabloids and broadsheet newspapers. "A tabloid is a newspaper format particularly popular in the United Kingdom. A tabloid format newspaper is roughly 23 by 14 inches (597mm 375mm) per spread. This is the smaller of two standard newspaper sizes; the larger newspapers, associated with higher-quality journalism, are called broadsheets (although some British 'quality' papers have recently adopted the tabloid format)," states Wikipedia (2006).
The aim is to examine the extent to which pregnant smokers are aware of the health risks, how they rationalize their smoking and the prompts they suggest encourage them to smoke. A final purpose is to determine the implications for a health promotion program.
Having carried the coding of the rules for almost forty nine countries, the LLSV report vividly indicated that some states offer more protection to external investors than others (Shleifer, 2008).
uction as far as performance is concerned, since the only recipients of a performance are the direct spectator audiences that are present at theater or any other artistic stage when the act itself is being staged (Bial, 147). Performance occurs in real-time, at a time when it
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