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Dioecious Cannabis sativa L. is grown for derived products that are of industrial, food and therapeutic importance. The research aims to highlight the therapeutic potential. The study's main objective is to examine the antibacterial activity of dioecious hemp extracts on two bacterial strains. The plant material comes from 4 varieties of dioecious hemp CS (Cannabis sativa L.): CS1-Armanca, CS2-Lovrin 110, CS 3- Silvana and CS 4- Teodora. The antibacterial property of the plant biological material was tested on two bacterial strains: Staphylococcus aureus (ATCC 25923) and Escherichia coli (ATCC 25922). The evaluation of the antibacterial activity of plant extracts was performed by determining the bacterial growth rate (BGR%), bacterial inhibition rate (BIR%) and MIC (minimum inhibitory concentration). The antibacterial activity of the hydroalcoholic extracts of dioecious Cannabis sativa L was positively correlated with the increase of the concentration tested and inhibitory values. The results recommend them as possible candidates as compounds in products with antibacterial efficacy. [ABSTRACT FROM AUTHOR]

Recent years have seen an increase in microbial resistance, which has led to great challenges for the medical community in terms of treating diseases and the food industry in terms of contamination and the loss of shelf life. This research aimed to evaluate the chemical composition and antimicrobial activity of the essential oil of Elettaria cardamomum against the following reference strains: Streptococcus pyogenes (ATCC 19615), Staphylococcus aureus (ATCC 25923), Shigella flexneri (ATCC 12022), Pseudomonas aeruginosa (ATCC 27853), Escherichia coli (ATCC 25922), Salmonella typhimurium (ATCC 14028), Haemophilus influenzae type B (ATCC 10211), Listeria monocytogenes (ATCC 19114), Bacillus cereus (ATCC 10876) Clostridium perfringens (ATCC 13124), Candida parapsilopsis (ATCC 22019) and Candida albicans (ATCC 10231). The chemical analysis revealed 24 GC-MSidentified compounds using a Shimadzu QP 2010 Plus apparatus (Columbia, SC, USA) equipped with an AT WAX 30 m 0.32 mm 1 µm capillary column. The antimicrobial activity and MIC evaluation using the microdilution method suggested a higher efficacy against Gram-positive bacteria and fungi than Gram-negative bacteria. [ABSTRACT FROM AUTHOR]

On the last two years, there was carried out some research work on the medicinal plants from wild flora. All the research was done on the area of Nera river basin because this region is a protected area and has a very large biodiversity. As far as we know on this area there are over 1000 species of superior plants classified on 98 families. One of this plants growing on this region is Oenothera biennis. One of this plant pathogens is powdery mildew produced by one of Erysiphe genus species. Regarding to the work method, all observation data were collected during vegetation period of years 2015 and 2016. In this paper there are presented only averages of data collected during the time period mentioned previously. Our observations consist from two separate operations. First operation was to determine inside of observation area the place and the density of the most representative populations of Oenothera biennis. The second operation was to see if those plants are affected of some pathogens and the third operation was to evaluate the attack parameters of each pathogen. One of the pathogens present on both years when observations were performed was Erysiphe sp. The novelty is relatively high because this work provides important data for both agricultural practices (especially for breeding process) and also for local environment protection authorities. Oenothera biennis seeds are used to extract faty essential acids used by human body on preliminary stage in the production of the tissue hormone prostaglandin, but due to aging human body at a certain moment can't produce enough quantity of this substance which have as effect some of most known aging disorders. Taking in consideration this facts this herb could become a cultivated medicinal plant used in some pharmaceutical and cosmetic industry products. From this point of view it is important to know the infection pressure of the plants pathogens from natural environment. We appreciate that the plants from wild flora related to cultivated plants are considered to be a consistent source for diseases resistance genes in the plant breeding process. Limits of the research are that the data from the research come from just from two years of observations and greatly influenced by local climatic and soil factors. [ABSTRACT FROM AUTHOR]