Abstract: A fungal strain of the genus Trichoderma with the designation HSA12 and compositions that contain said fungal strain or spores thereof is disclosed. The fungal strain or spores thereof are promoting stabilizing plant growth, increasing the yields of crops, inoculating soil, roots and/or above-ground plant parts with the fungal strain or spores with compositions containing said fungal strain or spores thereof, to increase the efficiency of nutrient intake and to improve the stress tolerance of crops as well as improving the structure and health of the soil or for decontaminating or remediating soil or a body of water and for stabilizing or reestablishing endangered or desired wild plant populations. Also disclosed is a set of primer pairs for amplifying microsatellite loci of the genome of the fungal strain in order to determine molecular markers and to identify the fungal strain. A method for determining the fungal strain is also disclosed.

Abstract: A fungal strain of the genus Trichoderma with the designation HSA12 and compositions that contain said fungal strain or spores thereof is disclosed. The fungal strain or spores thereof are promoting stabilizing plant growth, increasing the yields of crops, inoculating soil, roots and/or above-ground plant parts with the fungal strain or spores with compositions containing said fungal strain or spores thereof, to increase the efficiency of nutrient intake and to improve the stress tolerance of crops as well as improving the structure and health of the soil or for decontaminating or remediating soil or a body of water and for stabilizing or reestablishing endangered or desired wild plant populations. Also disclosed is a set of primer pairs for amplifying microsatellite loci of the genome of the fungal strain in order to determine molecular markers and to identify the fungal strain. A method for determining the fungal strain is also disclosed.

Abstract: A composition of active ingredients for fighting plant diseases, composed of at least two different active ingredients, selected from the group of stilbenes and/or derivatives thereof on the one hand and of the group of galloylated flavan-3-ols and/or derivatives thereof, and/or of the group of proanthocyanidins and/or derivatives thereof on the other hand. As an alternative, the at least two different active ingredients can be selected from the group of galloylated flavan-3-ols and/or derivatives thereof and/or from the group of proanthocyanidins and/or derivatives thereof. The novel mixtures have a higher effect than the individual components, there is a synergistic effect. The invention further relates to a method for fighting fungal plant diseases using the aforementioned active ingredients.

Abstract: A method of producing active component fractions from dried and ground root material of a species of the rheum family by extraction with ethanol, removal of lipophilic minor components and methanol, followed by shaking in ethyl acetate and separating the combined ethyl acetate phase into a limited number of fractions by columnar chromatography in the presence of an eluant.