methods of down-regulating or decreasing carbon dioxide (co2) and / or water exchange in a guard cell of a plant, plant cell, plant leaf, plant organ or plant part by closing a stomatal pore in a guard cell in the epidermis of a plant, plant cell, plant leaf, plant organ or plant part or to produce a guard cell, plant, plant cell, plant leaf, plant organ or plant part with improved or drought-resistant water use efficiency, and nucleic acid molecule

摘要

The invention provides compositions and methods for manipulating the exchange of water and/or carbon dioxide (CO 2 ) through plant stomata by controlling CO 2 sensor genes. The invention provides compositions and methods for enhancing or optimizing biomass accumulation in a plant. The invention provides compositions and methods for opening or closing a stomatal pore on a guard cell in the epidermis of a plant. The invention provides compositions and methods for increasing or decreasing oxygenation efficiency and/or carbon fixation in a guard cell in the epidermis of a plant by manipulating expression of a ribulose-1,5-bisphosphate carboxylase/oxygenase. The invention provides promoters for regulating expression of a nucleic acid in a plant guard cell.