A composition comprising an organic photoactivator, a gasotransmitter salt which converts into a gasotransmitter via electron transfer, and an electron donor which donates an electron to the photoactivator when the photoactivator is in a photo-excited state.

Selenium (Se) nanostructures are synthesized using bacteria, and the synthetic method provides options for specific functionalization of the nanostructures, targeting, as well as options for crystal form of and for additives to the composition. In addition to drug delivery and imaging options, the synthesized Se nanostructures provide methods of inhibiting drug resistant bacterial cells and cancer cells without cytotoxicity towards normal human cells and dermal fibroblasts. The green chemistry methods for synthesizing Se nanostructures do not produce toxic byproducts and do not require toxic reagents in comparison to traditional chemical synthetic methods for making Se nanostructures, while simultaneously producing new therapeutic benefits and treatments.

Selenium (Se) nanostructures are synthesized using bacteria, and the synthetic method provides options for specific functionalization of the nanostructures, targeting, as well as options for crystal form of and for additives to the composition. In addition to drug delivery and imaging options, the synthesized Se nanostructures provide methods of inhibiting drug resistant bacterial cells and cancer cells without cytotoxicity towards normal human cells and dermal fibroblasts. The green chemistry methods for synthesizing Se nanostructures do not produce toxic byproducts and do not require toxic reagents in comparison to traditional chemical synthetic methods for making Se nanostructures, while simultaneously producing new therapeutic benefits and treatments.

A method for controlling tobacco bacterial wilt and an application of NaHS in controlling the tobacco bacterial wilt are provided by the present disclosure, and the disclosure belongs to the technical field of plant disease control. By measuring the growth effect of Ralstonia solanacearum in tobacco through plate and shake bottle experiments, the disclosure finds the NaHS has an inhibiting effect on the growth of the pathogen of bacterial wilt; and the influence of different concentration of NaHS on the incidence of bacterial wilt in tobacco is detected, and the result also shows that NaHS has a good effect on resisting bacterial wilt in tobacco. The disclosure finds and proves for the first time that NaHS is an effective antibacterial substance against bacterial wilt and provides a new method for prevention and controlling of the tobacco bacterial wilt.

The present invention provides improved combinations, mixtures and compositions comprising a phthalimide fungicide and a primary fungicide, as well as methods of use and processes of preparation thereof.

The present invention provides improved combinations, mixtures and compositions comprising a phthalimide fungicide and a primary fungicide, as well as methods of use and processes of preparation thereof.

The invention provides a compound of formula (I): wherein X, Y Z, R.sup.1, R.sup.2, and X.sup.+ have any of the values described in the specification. The compounds are useful to increase plant growth and/or to increase harvest yield.

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Insecticide resistance is an ongoing challenge in agriculture and vector control. Here, we demonstrate a novel strategy to attenuate resistance. One embodiment provides a method for increasing susceptibility of an insect to a pesticide comprising contacting an insect, soil, wood, plant, seeds, grain or manmade structure with one or more inhibitors of insect resistance.

Insecticide resistance is an ongoing challenge in agriculture and vector control. Here, we demonstrate a novel strategy to attenuate resistance. One embodiment provides a method for increasing susceptibility of an insect to a pesticide comprising contacting an insect, soil, wood, plant, seeds, grain or manmade structure with one or more inhibitors of insect resistance.

A fungicidal composition comprising a mixture of components (A) and (B), wherein components (A) and (B) are as defined in claim 1, and use of the compositions in agriculture or horticulture for controlling or preventing infestation of plants by phytopathogenic microorganisms, preferably fungi.