INCREASING CARBON FLOW FOR POLYHYDROXYBUTYRATE PRODUCTION IN BIOMASS CROPS
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United States of America Patent
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Issued Date -
Mar 15, 2012
app pub date -
Sep 15, 2011
filing date -
Sep 15, 2010
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Abandoned
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Abstract
Transgenic plants, transgenic plant material, and transgenic plant cells for the improved synthesis of polyhydroxyalkanoates, preferably poly(3-hydroxybutyrate) (also referred to as PHB), have been developed. In one embodiment, carbon flow is modulated to increase production of PHB. Preferred plants that can be genetically engineered to produce PHB include plants that produce a large amount of lignocellulosic biomass that can be converted into biofuels, such as switchgrass, Miscanthus, Sorghum, sugarcane, millets, Napier grass and other forage and turf grasses. An exemplary plant that can be genetically engineered to produce PHB and produces lignocellulosic biomass is switchgrass, Panicum virgatum L. A preferred cultivar of switchgrass is Alamo. Other suitable cultivars of switchgrass include, but are not limited to, Blackwell, Kanlow, Nebraska 28, Pathfinder, Cave-in-Rock, Shelter and Trailblazer.
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