Described herein are biological devices and methods for using the same to produce a polyactive carbohydrate. The biological devices include microbial cells transformed with a DNA construct containing genes for producing a chitin synthase, a chitosanase, and a chitin deacetylase. In some instances, the biological devices also include a gene for lipase. Methods for using the polyactive carbohydrate are also provided herein, including, but not limited to, enhancing the physiological properties of plants; medical applications; applications in the construction, materials science, and home goods industries; personal care, grooming, cosmetics, and oral care compositions containing the polyactive carbohydrate; methods for water decontamination; and the production of polyurethanes.

The invention relates to a novel biomimetic affinity purification material and its application in the purification of chitosanase, which belongs to the field of industrial biotechnology. The affinity ligand for the biomimetic affinity material is chitodisaccharides, the connecting arm is cyanuric chloride, and the base medium is epoxy-activated Sepharose 6B. The desorption constant (K.sub.d) and the theoretical maximum adsorption capacity (Q.sub.max) of the biomimetic affinity material are 24.2 g/mL and 24.1 mg/g, respectively. Using the above biomimetic affinity material, a chitosanase biomimetic affinity purification method is established, which can produce high-purity chitosanase with high efficiency and low cost, and has good industrial application potential.

Described herein are biological devices and methods for using the same to produce a polyactive carbohydrate. The biological devices include microbial cells transformed with a DNA construct containing genes for producing a chitin synthase, a chitosanase, and a chitin deacetylase. In some instances, the biological devices also include a gene for lipase. Methods for using the polyactive carbohydrate are also provided herein, including, but not limited to, enhancing the physiological properties of plants; medical applications; applications in the construction, materials science, and home goods industries; personal care, grooming, cosmetics, and oral care compositions containing the polyactive carbohydrate; methods for water decontamination; and the production of polyurethanes.

The present invention relates to a composition comprising a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one plant growth stimulating protein or peptide and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) tioxazafen in a synergistically effective amount. Furthermore, the present invention relates to the use of this composition as well as a method for enhancing plant growth, promoting plant health, and/or reducing overall damage of plants and plant parts.

Described herein are biological devices and methods for using the same to produce a polyactive carbohydrate. The biological devices include microbial cells transformed with a DNA construct containing genes for producing a chitin synthase, a chitosanase, 5 and a chitin deacetylase, and, optionally, lipase, regulatory sequence CHR1, transglycosylase, dehydrogenase, and/or (1.fwdarw.3), (1.fwdarw.4)-?-glucan synthase. Methods for using the polyactive carbohydrate are also provided herein including, but not limited to, increasing plant hormone production and improving the appearance and root strength of plants and production of polyurethane biofoams.

The present invention relates to a composition comprising a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one plant growth stimulating protein or peptide and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) at least one particular insecticide disclosed herein in a synergistically effective amount. Furthermore, the present invention relates to the use of this composition as well as a method for enhancing plant growth, promoting plant health, and/or reducing overall damage of plants and plant parts.

The present invention relates to a composition comprising a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one plant growth stimulating protein or peptide and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) at least one particular fungicide disclosed herein in a synergistically effective amount. Furthermore, the present invention relates to the use of this composition as well as a method for enhancing plant growth, promoting plant health, and/or reducing overall damage of plants and plant parts.

The present invention relates to a composition comprising a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one plant growth stimulating protein or peptide and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) at least one particular insecticide disclosed herein in a synergistically effective amount. Furthermore, the present invention relates to the use of this composition as well as a method for enhancing plant growth, promoting plant health, and/or reducing overall damage of plants and plant parts.

The present invention relates to a composition comprising a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one plant growth stimulating protein or peptide and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) at least one particular insecticide disclosed herein in a synergistically effective amount. Furthermore, the present invention relates to the use of this composition as well as a method for enhancing plant growth, promoting plant health, and/or reducing overall damage of plants and plant parts.

The present invention relates to a composition comprising a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one plant growth stimulating protein or peptide and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) at least one particular fungicide disclosed herein in a synergistically effective amount. Furthermore, the present invention relates to the use of this composition as well as a method for enhancing plant growth, promoting plant health, and/or reducing overall damage of plants and plant parts.