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Strategies & Market Trends : Booms, Busts, and Recoveries

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To: tradermike_1999 who started this subject	7/14/2001 12:43:23 AM
From: TobagoJack	of 74559

Starting on the fun stuff ... with implications for global food supply: QUOTE Mangrove-tree gene allows life in hostile environments University team isolates gene enabling plants to survive salt, heat nni.nikkei.co.jp Issued: July 9, 2001Mangrove-tree gene allows life in hostile environmentsUniversity team isolates gene enabling plants to survive salt, heat Tobacco with a mangrove gene, right, thrives in salt water, unlike an ordinary leaf. Researchers at the Tokyo University of Agriculture and Technology have isolated a gene found in mangrove trees that enables the hardy plant to grow in salt water and thrive in high temperatures.When the gene was inserted into yeast cells placed in an 8% saline medium, the cells grew at twice the rate of yeast without the gene. Individual tobacco cells carrying the gene demonstrated the same high growth rate. Whole plants were able to thrive in water with a saline concentration of about 1%, one-third that of sea water but too salty for ordinary tobacco plants.In another experiment, E. coli bacteria carrying the gene survived in water at temperatures up to 42 C (107F).Introducing the gene into plants such as rice could enable productive farming in regions where it has been impossible in the past.Spinach and wheat are known for their salt resistance but not for thriving under high temperatures like organisms equipped with the mangrove gene. The research team will continue experiments in hopes of identifying the exact part of the gene that is directly related to salt resistance.Desertification and soil erosion in many countries have been exacerbated by global warming, which has begun to raise sea levels. That has prompted researchers to turn to genetic engineering in a bid to create plants capable of growing in harsh environments. UNQUOTE

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