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The article focuses on a study which determines the antibacterial stearolactone, rhizobialide, isolated from Glycyrrhiza uralensis. The endophytic rhizobium was inoculated into an Erlenmeyer flask and was mixed into a culture medium to allow fermentation and isolation of metabolite. The study explored that the occurrence of cyclodipeptide in a species of terrestrial endophytic rhizobia in licorice.

The article presents a study which examines the chemical constituents of Helianthus annuus L., an allelopathic cultivar sunflower in China. It discusses the isolation and characterization of the eight compounds from the isolated methanolic extracts of the Helianthus annuus L. leaves. It states that the leaves were collected in Wuzhong City, Ningxia Province and were identified by Mr. Z. H. Wu at Northwest Institute of Botany in Yangling, Shaanxi Province.