Methods for improving the ability of a population of biological agents to compete and survive in a field setting are provided. By improving the population of biological agents, the modified population of agents is able to grow, compete with other microbial strains and fungi, and provide protection for plants from pathogens. In particular, modified biological agents and modified populations of such agents that are herbicide tolerant or resistant are selected or engineered. In this manner, the protection from disease-causing agents is enhanced. Such modified populations of biological agents can be added to soils to prevent fungal pathogens and the diseases they cause promoting plant growth. Therefore, the present invention is useful for enhancing the competitiveness of modified biological agents particularly over other microbial agents which are not herbicide resistant. Compositions of the invention include selected or engineered herbicide resistant biological agents and modified populations of biocontrol agents. These modified biological agents can be used as an inoculant or as a seed coating for plants and seeds.

Novel strains of Pseudomonas fluorescens are disclosed. Several novel mutated strains of Pseudomonads are engineered by repetitive culturing of a parent strain under stressed conditions. Various enriched populations are screened and ranked based on relative performance indices including viable cell yield during growth, efficacy in suppression of dry rot disease, cell growth recovery after dry storage and resistance to switchgrass hydrolysate.

The present invention provides compositions comprising new strains of Pseudomonas fluorescens and Burkholderia cenocepacia. Secreted fraction compositions produced by these bacterial strains, and the methods for producing these compositions are also provided. Herein, the inventors demonstrate that these bacterial strains and compositions may be used to inhibit the growth of a broad spectrum of plant pathogens.

The present disclosure relates to a genetically modified microbial cell that includes a genetic modification resulting in the expression of a vanillate demethylase, where the microbial cell is capable of metabolizing at least one S-lignin decomposition molecule including at least one of syringate and/or 3-O-methyl gallate, and the genetically modified microbial cell is capable of producing gallate. In some embodiments of the present disclosure, the vanillate demethylase may include VanAB.

Methods for improving the ability of a population of biological agents to compete and survive in a field setting are provided. By improving the population of biological agents, the modified population of agents is able to grow, compete with other microbial strains and fungi, and provide protection for plants from pathogens. In particular, modified biological agents and modified populations of such agents that are herbicide tolerant or resistant are selected or engineered. In this manner, the protection from disease-causing agents is enhanced. Such modified populations of biological agents can be added to soils to prevent fungal pathogens and the diseases they cause promoting plant growth. Therefore, the present invention is useful for enhancing the competitiveness of modified biological agents particularly over other microbial agents which are not herbicide resistant. Compositions of the invention include selected or engineered herbicide resistant biological agents and modified populations of biocontrol agents. These modified biological agents can be used as an inoculant or as a seed coating for plants and seeds.

Methods for improving the ability of a population of biological agents to compete and survive in a field setting are provided. The modified population of agents is able to grow, compete with other microbial strains and fungi, and provide protection for plants from pathogens. Modified biological agents and modified populations of such agents that are herbicide tolerant or resistant are selected or engineered. In this manner, the protection from disease-causing agents is enhanced. Such modified populations can be added to soils to prevent fungal pathogens and associated diseases, promoting plant growth. The present invention is useful for enhancing the competitiveness of modified biological agents particularly over other microbial agents which are not herbicide resistant. Compositions include selected or engineered herbicide resistant biological agents and modified populations of biocontrol agents. These modified biological agents can be used as an inoculant or as a seed coating for plants and seeds.

Methods for improving the ability of a population of biological agents to compete and survive in a field setting are provided. By improving the population of biological agents, the modified population of agents is able to grow, compete with other microbial strains and fungi, and provide protection for plants from pathogens. In particular, modified biological agents and modified populations of such agents that are herbicide tolerant or resistant are selected or engineered. In this manner, the protection from disease-causing agents is enhanced. Such modified populations of biological agents can be added to soils to prevent fungal pathogens and the diseases they cause promoting plant growth. Therefore, the present invention is useful for enhancing the competitiveness of modified biological agents particularly over other microbial agents which are not herbicide resistant. Compositions of the invention include selected or engineered herbicide resistant biological agents and modified populations of biocontrol agents. These modified biological agents can be used as an inoculant or as a seed coating for plants and seeds.

A fermentation method for mupirocin, the method comprising performing shake flask seed culture, seed tank culture, fermentation culture, feed culture. The fermentation method is not only suitable for industrial mass production, but also improves the fermentation potency of mupirocin, which can be stably maintained to be 8000 ug/ml or above.

The present invention provides compositions comprising new strains of Pseudomonas fluorescens and Burkholderia cenocepacia. Secreted fraction compositions produced by these bacterial strains, and the methods for producing these compositions are also provided. Herein, the inventors demonstrate that these bacterial strains and compositions may be used to inhibit the growth of a broad spectrum of plant pathogens.

The invention relates to cells which make rhamnolipids and are genetically modified such that they have a decreased activity, compared to the wild type thereof, of an ABC glucose transporter and, compared to the wild type thereof, an increased activity of at least one non-ABC glucose transporter and to a method for producing rhamnolipids using the cells according to the invention.