we found a positive relationship between resveratrol and nitrogen in the presence of melilot and no significant relationship in the lack of melilot. Nitrogen fixation of rhizobia features a high energy cost as the fixation of just one gram of nitrogen requires 10 g sugar under good circumstances. If glucose is transferred from knotweed to melilot Aurora C inhibitor to cover the energy allocated to nitrogen fixation, less glucose would be open to form resveratrol glucosides in a knotweed melilot rhizobia system that set relatively large amounts of nitrogen. Ergo, in accordance with the total amount of resveratrol glucosides, more resveratrol could be noticed. Within our pot test, the ratio of resveratrol to resveratrol glucosides in knotweed was indeed considerably higher in the presence of melilot than in the absence of melilot for low vitamin clay and loess. Not merely the presence of melilot but also the efficiency of melilot to fi nitrogen was significantly correlated Immune system with the ratio of resveratrol to resveratrol glucoside. This plainly describes the differences between most of the substrates. Fertilizer is revealed to become a substrate with a low efficiency of N fixation and, at the same time, with a higher proportion of resveratrol glucosides compared with its aglycones. The alternative is true for that clayish low nutrient substrates, clay and loess. Our data ergo suggest the existence of glucose transport between the two plants, knotweed and melilot, and illustrate how costly nitrogen fixation is. When it comes to transport of nitrogen, the following observations have been made: 1 the rhizobia bacteroid membrane is permeable to amino acids, 2 bacteroids cycle amino acids towards the variety plantroots exude both amino acids and contact us sugars, and 4 fungal hyphae are in a position to transport nitrogen, also amino acids, and can transport sugars both passively and actively. The flowers in our system are plainly connected by fungal hyphae, as the melilot acts as a donor plant of mycorrhizal fungi, vesicules and hyphae, but no arbuscules, have been found in the roots of knotweed growing together with melilot, but none have been seen in the absence of melilot. Transfer of substances via hyphae is usually to be expected within our program. But, we did not examine the systems of transportation, which require further research. Conclusions A three-year field test unveiled that 2. 6 t of dry mass and 8. 5 kilogram of stilbenes are generated per hectare of knotweed. Indulge bank soils are ergo promising areas to develop knotweed, specifically this clone of Page1=46. bohemica, as a medicinal plant for production of resveratrol and resveratrol containing materials.