Abstract: Transgenic plants that express properly processed ruminant or ruminant-like lysozymes and that are resistant to bacterial pathogens, including both gram-negative and gram-positive bacteria, are provided. A preferred embodiment provides transgenic tobacco plants that express a sufficient concentration of properly processed bovine lysozyme c2 to render the plants less susceptible to bacterial plant pathogens.Methods and compositions for treatment of plants, seeds and other plant tissues prior to or after exposure or infection with bacterial plant pathogens are also provided. In particular, compositions and methods of contacting plants with such compositions that contain a concentration of bovine lysozyme c2 or other ruminant or ruminant-like lysozyme are provided.A signal sequence that is effective for properly processing heterologous proteins that are expressed in transgenic plants is also provided.

Abstract: Transgenic plants that are modified to produce fruits that have altered levels of soluble solids compared to non-transgenic species of the same species are provided. The transgenic plants are modified by introduction of DNA constructs that encode invertase operatively linked to DNA encoding regulatory regions that direct transcription of the DNA encoding invertase and to DNA encoding sequences that direct proper processing of the invertase through the secretory pathways of the plant and targeting of the invertase to the vacuole.In particular, DNA constructs encoding tomato plant vacuolar invertase in operative linkage with a developmentally regulated promoter region are provided. Preferred regulatory and structural DNA is obtained from genomic DNA clones and cDNA clones encoding tomato fruit vacuolar invertases from the commercial tomato plant, Lycopersicon esculentum, and wild tomato plant, Lycopersicon pimpinellifolium.

Abstract: Transgenic plants that are modified to produce fruits that have altered levels of soluble solids compared to non-transgenic plants of the same species are provided. The transgenic plants are prepared by introducing into plants DNA constructs that encode invertase operatively linked to DNA encoding regulatory regions that direct transcription of the DNA encoding invertase and operatively linked to DNA encoding amino acids that direct proper processing of the invertase through the secretory pathways of the plant and targeting of the invertase to the vacuole.In particular, DNA constructs encoding tomato plant vacuolar invertase in operative linkage with a developmentally regulated promoter region are provided. Preferred regulatory and structural DNA is obtained from genomic DNA clones and cDNA clones encoding tomato fruit vacuolar invertases from the commercial tomato plant, Lycopersicon esculentum, and wild tomato plant, Lycopersicon pimpinellifolium.

Abstract: Transgenic plants that express properly processed ruminant or ruminant-like lysozymes and that are resistant to bacterial pathogens, including both gram-negative and gram-positive bacteria, are provided. A preferred embodiment provides transgenic tobacco plants that express a sufficient concentration of properly processed bovine lysozyme c2 to render the plants less susceptible to bacterial plant pathogens.Methods and compositions for treatment of plants, seeds and other plant tissues prior to or after exposure or infection with bacterial plant pathogens are also provided. In particular, compositions and methods of contacting plants with such compositions that contain a concentration of bovine lysozyme c2 or other ruminant or ruminant-like lysozyme are provided.A signal sequence that is effective for properly processing heterologous proteins that are expressed in transgenic plants is also provided.