Abstract: The present invention features Nicotiana nucleic acid sequences such as sequences encoding constitutive, or ethylene or senescence induced polypeptides, in particular cytochrome p450 enzymes, in Nicotiana plants and methods for using these nucleic acid sequences and plants to alter desirable traits, for example by using breeding protocols.

Abstract: The present invention features Nicotiana nucleic acid sequences such as sequences encoding constitutive, or ethylene or senescence induced polypeptides, in particular cytochrome p450 enzymes, in Nicotiana plants and methods for using these nucleic acid sequences and plants to alter desirable traits, for example by using breeding protocols.

Abstract: Methods of selectively reducing constituents in tobacco as well as the tobacco obtained by such methods are disclosed. Subcritical fluids, e.g., liquid carbon dioxide, serve as the reduction media.

Abstract: Tobacco articles having tobacco disposed in a porous matrix. The tobacco articles can provide tobacco to an adult consumer in the form of particles, liquid, or vapor so as to furnish tobacco satisfaction to the consumer. The tobacco can be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.

Abstract: The invention features tobacco compositions and methods of their use and manufacture. Compositions of the invention may be based on a variety of technologies. Technologies include films, tabs, shaped parts, gels, consumable units, insoluble matrices, and hollow shapes. In addition to tobacco, compositions may also contain flavors, colors, and other additives as described herein. Compositions may also be orally disintegrable. Exemplary compositions and methods of their manufacture are described herein.

Abstract: The present invention generally relates to methods and materials involved in producing tobacco plants having reduced levels of conversion of nicotine to nornicotine. In certain embodiments, the invention is directed to mutations in a nicotine demethylase gene, tobacco plants comprising mutations in a nicotine demethylase gene, and tobacco compositions and products thereof. In other embodiments, the invention is directed toward nicotine demethylase RNA interference, tobacco plants comprising a nicotine demethylase RNA interference transgene, and tobacco compositions and products thereof.

Abstract: The present invention generally relates to methods and materials involved in producing tobacco plants having reduced levels of conversion of nicotine to nomicotine. In certain embodiments, the invention is directed to mutations in a nicotine demethylase gene, tobacco plants comprising mutations in a nicotine demethylase gene, and tobacco compositions and products thereof. In other embodiments, the invention is directed toward nicotine demethylase RNA interference, tobacco plants comprising a nicotine demethylase RNA interference transgene, and tobacco compositions and products thereof.

Abstract: Tobacco articles having tobacco disposed in a porous matrix. The tobacco articles can provide tobacco to an adult consumer in the form of particles, liquid, or vapor so as to furnish tobacco satisfaction to the consumer. The tobacco can be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.

Abstract: The present invention generally relates to methods and materials involved in producing tobacco plants having reduced levels of conversion of nicotine to nornicotine. In certain embodiments, the invention is directed to mutations in a nicotine demethylase gene, tobacco plants comprising mutations in a nicotine demethylase gene, and tobacco compositions and products thereof. In other embodiments, the invention is directed toward nicotine demethylase RNA interference, tobacco plants comprising a nicotine demethylase RNA interference transgene, and tobacco compositions and products thereof.

Abstract: The invention features tobacco compositions and methods of their use and manufacture. Compositions of the invention may be based on a variety of technologies. Technologies include films, tabs, shaped parts, gels, consumable units, insoluble matrices, and hollow shapes. In addition to tobacco, compositions may also contain flavors, colors, and other additives as described herein. Compositions may also be orally disintegrable. Exemplary compositions and methods of their manufacture are described herein.

Abstract: A smokeless tobacco product includes smokeless tobacco and structural fibers. The structural fibers forming a network in which the smokeless tobacco is entangled. The structural fibers have a composition different from the smokeless tobacco. The tobacco-entangled fabric can have an overall oven volatiles content of at least 10 weight percent. In some embodiments, the structural fibers form a nonwoven network. In some embodiments, fibrous structures of the smokeless tobacco are entangled with the structural fibers.

Abstract: A smokeless tobacco product includes smokeless tobacco and a polymeric material in intimate contact with the smokeless tobacco and stabilized in conformance to a surface topography of the tobacco's fibrous structures such that the stabilized polymeric material secures the smokeless tobacco together. The smokeless tobacco product has a moisture-permeable porous surface and an overall oven volatiles content of at least 10 weight percent.

Abstract: Some embodiments of a tobacco article may include tobacco disposed in a porous matrix. The tobacco article may provide tobacco, tobacco constituents, or both tobacco and tobacco constituents to the consumer's mouth in the form of particles, liquid, or vapor so as to provide tobacco satisfaction to the consumer. In some circumstances, the tobacco may be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.

Abstract: Some embodiments of a tobacco article may include tobacco disposed in a porous matrix. The tobacco article may provide tobacco, tobacco constituents, or both tobacco and tobacco constituents to the consumer's mouth in the form of particles, liquid, or vapor so as to provide tobacco satisfaction to the consumer. In some circumstances, the tobacco may be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.

Abstract: Some embodiments of a tobacco article may include tobacco disposed in a porous matrix. The tobacco article may provide tobacco, tobacco constituents, or both tobacco and tobacco constituents to the consumer's mouth in the form of particles, liquid, or vapor so as to provide tobacco satisfaction to the consumer. In some circumstances, the tobacco may be integrally molded with a plastic material so that at least a portion of the tobacco is disposed in pores of the matrix.