Aims: In this work, the ethyl acetate and hexane fractions of Pityrogramma calomelanos (L.) were evaluated to antibacterial and antifungal activity against strains of Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Candida albicans, Candida krusei and Candida tropicalis.
Methods: The study was performed aiming to assess the antimicrobial effect with the method of dilution in HIA. The hexane and ethyl acetate fractions were named HFPC and EAFPC, respectively.
Results: Both fractions of specie P. calomelanos displayed good activity against S. aureus when associated with gentamicin. When associated with the antifungal, the fractions did not exhibit relevant activity against species of Candida.
Conclusions: These results indicate that this specie can be used as a possible source of natural products of antibacterial interest, mainly when combined with aminoglycosides.
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http://dx.doi.org/10.1016/j.jyp.2013.10.004 | DOI Listing |
Metallomics
August 2023
Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, Australia.
Pityrogramma calomelanos and Pteris vittata are cosmopolitan fern species that are the strongest known arsenic (As) hyperaccumulators, with potential to be used in the remediation of arsenic-contaminated mine tailings. However, it is currently unknown what chemical processes lead to uptake of As in the roots. This information is critical to identify As-contaminated soils that can be phytoremediated, or to improve the phytoremediation process.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
May 2022
Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil.
Mineral coal extraction in Santa Catarina State (Brazil) Carboniferous Basin has degraded the local ecosystem, restricting the use of its areas. One of the biggest environmental impacts in the mining areas is the uncontrolled disposal of waste and sterile mining with high concentrations of pyrite, which in the presence of air and water is oxidized promoting the formation of acid mine drainage (AMD). These contaminants can be leached into water resources, restrict the use of water and soil, and cause threats to fauna and flora.
View Article and Find Full Text PDFSci Total Environ
December 2021
University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Seoul, Republic of Korea; International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan 173212, Himachal Pradesh, India. Electronic address:
Integrated studies about potentially toxic elements (PTEs) in sites near gold mining spoils, their contamination and human health risk, as well as remediation potential of native plants are limited. Therefore, our aim was to assess the human health risk of PTEs (Al, As, Cd, Cr, Cu, Fe, Ni, Pb, Ti, V, and Zn) in sites near an abandoned gold mine spoil in Ghana. We collected 52 soil samples near the mine spoil and from a natural forest, determined their total element contents, and calculated the soil contamination factor (CF), enrichment factor (EF), geo-accumulation index (I) and the pollution load index (PLI).
View Article and Find Full Text PDFPlant Physiol Biochem
July 2021
Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD, 4072, Australia.
The terrestrial fern Pityrogramma calomelanos, a cosmopolitan tropical species, is one of the strongest known arsenic (As) hyperaccumulator plants. This study aimed to determine whether P. calomelanos preferentially forages for arsenite (As) or arsenate (As) in As-contaminated soils, and whether a positive root response to As enhances accumulation in P.
View Article and Find Full Text PDFInt J Phytoremediation
February 2021
Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Mangalore, Karnataka, India.
Few pteridophytes have proven the capacity to accumulate and remediate heavy metals from contaminated soils. , a non-seasonal fast-growing, a cosmopolitan fern, is a good indicator of environmental conditions, was used in the present study. The life cycle of ferns alternates with haploid gametophyte and diploid sporophyte.
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