COMPOSITIONS, METHODS, AND PLANT GENES FOR THE IMPROVED PRODUCTION OF FERMENTABLE SUGARS FOR BIOFUEL PRODUCTION

• Main Authors: VIDAURRE, DANIELLE, BONETTA, DARIO TORQUATO, MCCOURT, PETER JOHN, STAMATIOU, GEORGE
• Format: Patent
• Language: English; French
• Published: 03.10.2013
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BEER; BIOCHEMISTRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; NEW PLANTS OR PROCESSES FOR OBTAINING THEM; ORGANIC CHEMISTRY; PEPTIDES; PEST REPELLANTS OR ATTRACTANTS; PHYSICS; PLANT GROWTH REGULATORS; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; TESTING; TRAPPING; VINEGAR; WINE

Described herein are compositions comprising at least one auxin transport inhibitor for pre-treating a plant or seed to increase saccharification, or saccharide release by hydrolysis, the at least one auxin transport inhibitor being in an amount effective to increase sugar release from a plant tissue by hydrolysis. Also described are plant mutations, and methods to screen for such plant mutations, having an improved sugar release phenotype. The described compositions, methods and plant mutations are particularly useful for producing biofuel crops, such as maize, to improve sugar extractability from lignocellulosic biomass and hence, the efficiency of bioethanol production overall. L'invention concerne des compositions comprenant au moins un inhibiteur de transport d'auxine pour traiter préalablement une plante ou une semence afin d'augmenter la saccharification, ou la libération de saccharide par hydrolyse, l'au moins un inhibiteur de transport d'auxine étant présent en quantité efficace pour augmenter la libération de sucre à partir d'un tissu végétal par hydrolyse. L'invention concerne également des mutations de plantes et des procédés de criblage de telles mutations de plantes, à phénotype de libération du sucre améliorée. Les compositions, procédés et mutations de plantes décrits sont particulièrement utiles pour produire des cultures pour biocarburant, telles que le maïs, afin d'améliorer l'extractibilité de sucre à partir de biomasse lignocellulosique et par conséquent, l'efficacité de la production globale de bioéthanol.