Synthetic herbicides have adverse effects on the environment and human health. Understanding allelopathic intera c tions can provide alternatives for weed control without using these synthetic chemicals. This study investigated the impact of three concentrations (10, 20, and 30 μg/m L ) of Salvia sclarea essential oil (EO) on the Matricaria chamomilla , Leuca n themum vulgare , and Trifolium repens germination process, as well as its toxicological and antimicrobi al profile. Our results showed that S. sclarea EO, particularly at higher concentrations, affected the germination and growth parameters of the tested species, with T. repens being the most sensitive. A statistically significant increase in the value of the mitotic index was observed for all three tested concentrations of S. sclarea EO compared to the control group. A significant i n crease in the number of acentric fragments at between 10 and 30 µg/m L of S. sclarea EO compared to the control group, as well as an increase in the frequency of aneuploidy at between 10 µg/m L of S. sclarea EO compared to the control was detected. Minimum inhibitory concentration of EO was 500 μ L /m L for all tested bacteria. Impact on the bacterial biofilm formation was species-specific and concentration dependent. Our findings suggest that S. sclarea EO possesses certain allelopathic, proliferative, genotoxic, and antibacterial potential.

Bedding begonias ( Begonia cucullata Hort.) are cultivated primarily for their aesthetic appeal. Boasting beautiful leaves and lively, colourful flowers, these plants can significantly enhance any garden space. They also have the capacity to produce a large biomass, suggesting their suitability for phytoextraction purposes. This study aims to evaluate the effectiveness of bedding begonia in removing Cr, Pb, and Cd from artificially polluted substrates, with concentrations varying from 100 mg/kg to 500 mg/kg for Cr and Pb, and from 20 mg/kg to 100 mg/kg for Cd. The phytoextraction potential was estimated using bioaccumulation (BAF) and translocation (TF) factors analysis. The current study demonstrated that bedding begonia can successfully grow in substrates enriched with Cr, Pb, and Cd. BAF values < 1 for both Cr and Pb were detected regardless of contamination levels, indicating that this species has limited capacity to restore soils contaminated with these metals. On the other hand, BAF and TF values for Cd were greater than 1 at all contamination levels, implying their potential to remove Cd from polluted soils.

In this study, a greenhouse experiment was carried out from April to July 2024 to assess the effectiveness of four ornamental plants in removing heavy metals from the polluted soil surrounding the Zenica steel mill in Bosnia and Herzegovina. The selected ornamental plants - blue mink (Ageratum houstonianum Mill.), marigold (Tagetes erecta L.), impatiens (Impatiens walleriana Hook. f.), and begonia (Begonia semperflorens - Cultorum Group) - demonstrated potential for addressing soil contamination. These plants were cultivated in grow bags filled with soil collected from different areas surrounding the Zenica steel mill. The concentrations of heavy metals (Cu, Zn, Pb, Cd, Cr, Mn, and Fe) in both soil and plant samples were analyzed using atomic absorption spectrophotometry. The findings of this study reveal that soils adjacent to the Zenica steel mill are heavilycontaminated with Zn, Cd, and Pb and also contain notable levels of Mn and Fe. The bioaccumulation factor (BAF) and translocation factor (TF) were calculated to determine the potential of the selected ornamental plants to uptake and transport heavy metals from the soil to its aboveground parts. The BAF values for all heavy metals in all studied plant species were consistently below 1, indicating a limited capacity to remove heavy metals from the soil. This limited effectiveness can be attributed, among other factors, to the high pH levels of the tested soils. Despite the limitation, the findings revealed a significant difference in the plants’ capacity to uptake and accumulate heavy metal ions from the examined soils. Among the tested plants, blue mink demonstrated the highest ability to absorb Cu, Pb, Cr and Fe, while the highest concentrations of Zn and Cd were found in begonia

Abstract The photosynthetic pigments, antioxidant properties, and heavy metal content in Reseda lutea, Epilobium dodonaei, and Gentianella ciliata were examined in response to stress in the open pit of an abandoned iron mine. The soils were shallow, alkaline, and severely deficient in phosphorus, potassium, and humus. Heavy metal concentrations in the rhizospheres followed the order Fe > Mn > Pb > Zn > Cu > Ni > Cr > Cd for all three species, with Cu, Zn, and Pb exceeding the limits established by Bosnian legislation. The results indicated that the bioelements Cu, Zn, and Mn were within permissible limits set by FAO/WHO. Epilobium dodonaei acted as a Cd accumulator. The highest content of photosynthetic pigments was observed in this species. Positive correlations were detected between Cr and total phenolics, Cr and total flavonoids in E. dodonaei, Pb and total phenolic acids in G. ciliata. Negative correlations were noted between Zn and total phenolic acids in R. lutea, and Fe and total phenolics in E. dodonaei. Increased total proline and DPPH concentrations were associated with heightened Fe levels in E. dodonaei. These findings suggest that the species analyzed employ distinct defense mechanisms, enabling them to effectively adapt to stress. NOVELTY STATEMENT Three abundant plant species with different responses to the stress conditions of the abandoned iron mine were the focus. The analyzed biochemical-physiological parameters for all studied species on alkaline soils and, in general, for Gentianella ciliata are presented for the first time.

The Balkan Peninsula is one of Europe?s major hotspots for plant biodiversity. Although the rich flora of the Balkans has been exten?sively studied from many points of view, genome size studies have received comparatively little attention. This paper contributes to the online available Genome Size Database of Balkan Flora (GeSDaBaF; http://www.pmf.unsa.ba/gesdabaf) and updates this database with new bibliographic data on the C-values for plants in the Balkan region. Additionally, 2C DNA values determined by flow cytometry are reported for 87 accessions, encompassing 82 taxa (70 species, 11 subspecies, and one hybrid taxon, 14 of which are endemic to the Balkans and two with amphi-adriatic distribution) across 63 genera and 31 families. The newly obtained genome size values include the first data for one genus, 25 species, eight subspecies, and one hybrid taxon. These new data represent 9.99% of the 821 taxa for which nuclear DNA content has been assessed in the Balkans to date, highlighting existing knowledge gaps for future research.

The study explored the antiviral potential of ethnobotanical plants in Bosnia and Herzegovina, aiming to identify plants with promising antiviral properties and commonly used plant organs and preparations. Three plant families, Lamiaceae, Compositae and Rosaceae showed significant antiviral potential based on the number of species mentioned in the literature. The most studied viruses were herpes simplex virus (HSV), influenza virus (Influenza), and SARS-CoV-2. Tea was the most popular herbal preparation, and aerial parts and leaves were the most frequently used for therapeutic applications. These findings highlight the potential of plants as natural sources of antiviral compounds, paving the way for further research and new therapeutic approaches.

Abstract The aim of this study was to evaluate the phytotoxic, genotoxic, cytotoxic and antimicrobial effects of the Mentha arvensis L. essential oil (EO). The biological activity of M. arvensis EO depended on the analyzed variable and the tested oil concentration. Higher concentrations of EO (20 and 30 µg mL−1) showed a moderate inhibitory effect on the germination and growth of seedlings of tested weed species (Bellis perennis, Cyanus segetum, Daucus carota, Leucanthemum vulgare, Matricaria chamomilla, Nepeta cataria, Taraxacum officinale, Trifolium repens and Verbena × hybrida). The results obtained also indicate that the EO of M. arvensis has some genotoxic, cytotoxic and proliferative potential in both plant and human in vitro systems. Similar results were obtained for antimicrobial activity against eight bacteria, including multidrug-resistant (MDR) strains [Bacillus subtilis, Enterococcus faecalis, Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), Escherichia coli, extended-spectrum beta-lactamase-producing (ESBL) E. coli, Pseudomonas aeruginosa and Salmonella enterica subsp. enterica serovar Enteritidis], with the effect on multidrug-resistant bacterial strains. Research indicates that the EO of M. arvensis shows phytotoxic, genotoxic, cytotoxic and antimicrobial effects, as well as its potential application as a herbicide and against various human diseases.

Origanum vulgare L. has been proven to be the strongest herbal antiseptic in the world, native to the Mediterranean region, but is widely naturalized elsewhere in the temperate Northern Hemisphere. This study aimed to estimate the phytotoxic effect of three different concentrations of oregano essential oil (O. vulgare) on three selected plant species namely, wheat, tomato and mint using biotest germination and effects on seedling growth, as well as its toxicological properties using Allium test. Our results revealed that oregano essential oil exhibits allelopathic effect on selected species. All three tested concentrations of oregano essential oil caused a significant inhibition of Allium cepa L. root growth, as well as a reduction in the mitotic index values in A. cepa meristem cells. O. vulgare essential oil demonstrated phytotoxic and antiproliferative effects. Further research is needed to confirm our results.