Methods for increasing starch content in plant cobs

一种淀粉含量、穗轴的技术，应用在植物分子生物学领域，能够解决效率低等问题
CN102405291AInactive Publication Date: 2012-04-04SYNGENTA PARTICIPATIONS AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SYNGENTA PARTICIPATIONS AG
Publication Date
2012-04-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

Methods and compositions for increasing the starch content in green tissues of a plant are provided. The method comprises down-regulating the activity of starch degradation enzymes in a plant. The resulting transgenic plants of the invention have increased starch content in green tissues and exhibit a starch excess phenotype. In one embodiment the method involves manipulating a monocot plant to down-regulate the activity of a starch degradation enzyme. The plants are useful for improving the yield of free sugars from plant biomass and increase dried green tissue storage stability.
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Description

field of invention

[0001] The present invention relates to plant molecular biology, and in particular to methods and compositions for increasing starch accumulation in plant cobs and the use of these plant tissues in commercial applications. Background of the invention

[0002] Plant biomass is composed of sugars and represents the largest source of renewable hydrocarbons on Earth. Unlike other renewable energy sources, biomass can be converted directly into liquid fuels. The two most common types of biofuels are ethanol (ethyl alcohol) and biodiesel. Ethanol is an alcohol that can be produced by fermenting any biomass high in carbohydrates (starch, sugar, or cellulose). Once fermentable sugars are obtained from the biomass material, these sugars can be fermented to produce ethanol via a process similar to brewing beer. However, this vast resource is underutilized due to the fact that sugars are locked in complex polymers, often collectively referred to as lignocellulose....

Claims

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