Abstract: The present disclosure provides composition and methods for improving leaf quality of low-alkaloid tobacco plants. Also provided are the identification and genetic engineering of target genes (Leaf Quality Genes) for producing tobacco plants with altered total alkaloid and nicotine levels and commercially acceptable leaf grade, their development via breeding or transgenic approaches, and production of tobacco products from these tobacco plants.

Abstract: A stabilizing process for tobacco and tobacco products includes sterilizing the tobacco by applying an electron beam treatment to the tobacco. The process may also include treating the tobacco. The treating the tobacco includes pre-conditioning the tobacco, pasteurizing the tobacco, curing the tobacco, fermenting the tobacco, or combinations thereof. The method may also include forming a smokeless tobacco product containing the tobacco.

Abstract: This disclosure provides a number of sequences involved in axillary bud growth in tobacco, methods of using such sequences, tobacco plants carrying modifications to such sequences or transgenes of such sequences, and tobacco products made from tobacco leaf harvested from such plants.

Abstract: A LED lighting device, comprising: a base which has a bottom plate and a side wall, a cavity being formed between the bottom plate and the side wall; an optical component which covers one side of the base in a light-emitting direction of the LED lighting device; and a light source which is provided in the cavity of the base and comprises a circuit board and several LED arrays, the LED arrays comprising LED lamp beads fixed on the circuit board. The optical component comprises an optical unit, and the optical unit comprises a plurality of first optical components and a plurality of second optical components which correspond to the first optical components.

Abstract: This disclosure provides a number of sequences involved in the transport of alkaloids from the root to the leaf in tobacco, methods of using such sequences, tobacco plants carrying modifications to such sequences, and tobacco products made from such plants.

Abstract: The present disclosure provides tobacco having genetic modification(s) in a group of ERF genes. Also provided are tobacco plants with altered total alkaloid and nicotine levels and commercially acceptable leaf grade, their development via breeding or transgenic approaches, and production of tobacco products from these tobacco plants. Further provided are compositions and methods for producing tobacco plants having novel mutations or alleles to reduce nicotine levels. Further provided are sequence polymorphisms and molecular markers for breeding tobacco with reduced nicotine or alkaloids while maintaining tobacco leaf grade and tobacco product quality.

Abstract: This disclosure provides a number of sequences involved in nitrogen utilization, methods of using such sequences, tobacco plants carrying modifications to such sequences, tobacco plants transgenic for such sequences, and tobacco products made from such plants.

Abstract: The present disclosure provides the identification of genes involved in sucker growth in tobacco. Also provided are promoters that are preferentially active in tobacco axillary buds. Also provided are modified tobacco plants comprising reduced or no sucker growth. Also provided are methods and compositions for producing modified tobacco plants comprising reduced or no sucker growth.

Abstract: This disclosure provides a number of sequences involved in axillary bud growth in tobacco, methods of using such sequences, tobacco plants carrying modifications to such sequences or transgenes of such sequences, and tobacco products made from tobacco leaf harvested from such plants.

Abstract: A stabilizing process for tobacco and tobacco products includes sterilizing the tobacco by applying an electron beam treatment to the tobacco. The process may also include treating the tobacco. The treating the tobacco includes pre-conditioning the tobacco, pasteurizing the tobacco, curing the tobacco, fermenting the tobacco, or combinations thereof. The method may also include forming a smokeless tobacco product containing the tobacco.

Abstract: The present disclosure provides approaches for reducing tobacco-specific nitrosamines (TSNAs) in tobacco. Some of these approaches include genetically engineering tobacco plants to increase one or more antioxidants, increase oxygen radicle absorbance capacity (ORAC), or reduce nitrite. Also provided are methods and compositions for producing modified tobacco plants and tobacco products therefrom comprising reduced TSNAs.

Abstract: This disclosure provides a number of sequences involved in nitrogen utilization, methods of using such sequences, tobacco plants carrying modifications to such sequences, tobacco plants transgenic for such sequences, and tobacco products made from such plants.

Abstract: The present disclosure provides approaches for reducing nicotine. Also provided are tobacco plants with decreased tobacco-specific nitrosamines (TSNAs). The present disclosure further provides modified tobacco plants with low nicotine and increased antioxidant capacity. Further provided are tobacco plants or material with low nicotine and low TSNAs. Also provided is cured tobacco material of the tobacco plants provided herein and tobacco products comprising this cured tobacco material.

Abstract: The present disclosure provides tobacco Nic1b locus and associated genes. Also provided are tobacco plants with altered total alkaloid and nicotine levels and commercially acceptable leaf grade, their development via breeding or transgenic approaches, and production of tobacco products from these tobacco plants. Further provided are compositions and methods for producing tobacco plants having novel mutations or alleles to reduce nicotine levels. Further provided are sequence polymorphisms and molecular markers for breeding tobacco with reduced nicotine or alkaloids while maintaining tobacco leaf grade and tobacco product quality.

Abstract: The present disclosure provides approaches for reducing tobacco-specific nitrosamines (TSNAs) in tobacco. Some of these approaches include genetically engineering tobacco plants to increase one or more antioxidants, increase oxygen radicle absorbance capacity (ORAC), increase phenylalanine, or reduce nitrite. Also provided are methods and compositions for producing modified tobacco plants and tobacco products therefrom comprising reduced TSNAs.

Abstract: The present disclosure provides approaches for reducing tobacco-specific nitrosamines (TSNAs) in tobacco. Some of these approaches include genetically engineering tobacco plants to increase one or more antioxidants, increase oxygen radicle absorbance capacity (ORAC), or reduce nitrite. Also provided are methods and compositions for producing modified tobacco plants and tobacco products therefrom comprising reduced TSNAs.

Abstract: The present disclosure provides tobacco Nic1b locus and associated genes (e.g., a group of ERF genes). Also provided are tobacco plants with altered total alkaloid and nicotine levels and commercially acceptable leaf grade, their development via breeding or transgenic approaches, and production of tobacco products from these tobacco plants. Further provided are compositions and methods for producing tobacco plants having novel mutations or alleles to reduce nicotine levels. Further provided are sequence polymorphisms and molecular markers for breeding tobacco with reduced nicotine or alkaloids while maintaining tobacco leaf grade and tobacco product quality.

Abstract: The present disclosure provides tobacco Nic1b locus and associated genes. Also provided are tobacco plants with altered total alkaloid and nicotine levels and commercially acceptable leaf grade, their development via breeding or transgenic approaches, and production of tobacco products from these tobacco plants. Further provided are compositions and methods for producing tobacco plants having novel mutations or alleles to reduce nicotine levels. Further provided are sequence polymorphisms and molecular markers for breeding tobacco with reduced nicotine or alkaloids while maintaining tobacco leaf grade and tobacco product quality.

Abstract: The present disclosure provides approaches for reducing nicotine. Also provided are tobacco plants with decreased tobacco-specific nitrosamines (TSNAs). The present disclosure further provides modified tobacco plants with low nicotine and increased antioxidant capacity. Further provided are tobacco plants or material with low nicotine and low TSNAs. Also provided is cured tobacco material of the tobacco plants provided herein and tobacco products comprising this cured tobacco material.

Abstract: The present disclosure provides composition and methods for manipulating alkaloid or nicotine levels in tobacco plants. Also provided are the identification and genetic engineering of target genes (e.g., arginine decarboxylase (ADC), aspartate oxidase (AO), or ornithine decarboxylase (ODC)) for producing tobacco plants with altered total alkaloid and nicotine levels and commercially acceptable leaf grade, their development via breeding or transgenic approaches, and production of tobacco products from these tobacco plants.