Systems Microbiolo12

Systems Microbiolo12 - Cells from a huge variety of species...

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Systems Microbiology ° Agrobacteria causes plant diseases, with galls (tumors) that look a lot like the nodules created by Rhizobia . • However, this is parasitism, not mutual symbiosis • The agrobacteria causes a kind of genetic engineering, inserting its own DNA and changing the plant development • This inserted DNA includes oncogenes • The DNA also includes genes for opine synthesis, which the bacteria get the plant to produce and feed to them • The bacteria can thus naturally transform the plant cells to turn them into an opine factory for themselves ° People use this same method (Ti plasmids, plus some intermediate factors) for genetic engineering in plants • Transgene delivery system based on the Ti plasmid • Segregation of the transgene – Mendelian • Then you do standard genetic crossings
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Unformatted text preview: Cells from a huge variety of species can be modified in this way plant, fungal, even human A lot of people have problems with this kind of genetic modification, but there are also a lot of benefits Most of the corn grown in the US is genetically modified However, once you get these genetically-modified plants out into the field, its hard to keep them contained the pollen spreads from farm to farm The effects of this on plant diversity and gene transfer could be worrisome There are intellectual property issues involved what happens when a company produces a genetically-modified plant and then it turns up on other farms via pollen Also other controversies of ethics, labeling, society...
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This note was uploaded on 01/24/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.

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