Background
Celastrus paniculatus Willd. is a rich source of numerous active constituents such as celapanigin, celapagin, malkangunin, celapanin, zeylasteral, pristimerin, and zeylasterone which render medicinal properties to its various parts. Therefore, the present work provides a protocol for the synthesis of AgNPs from in vivo leaf and in vitro developed callus extract of C. paniculatus and both the extracts have great antibacterial potential, which may give immense support for the drug preparation using AgNPs prepared from this valuable medicinal plant.
Results
High frequencies of calli induced from leaves and its counterpart, i.e., the natural part leaf were selected as the experimental materials for the green synthesis. The collected data exhibited gradual color variations started with whitish color, creamish, and after 8 weeks it ultimately turns into a solid mass of brownish callus. The silver nanoparticles (AgNPs) were synthesized using in vivo fresh leaves and in vitro developed callus extracts with an indication of brown colored complex. Further confirmation of AgNPs synthesis in both the samples was done using UV-visible spectral analysis followed by X-ray diffraction (XRD) analysis, Fourier transformation infrared spectroscopy (FTIR), and scanning electron microscopic (SEM) analysis.
Conclusion
The antibacterial activity of both extracts reflected the presence of the zone of inhibition in both gram-positive and gram-negative bacteria. AgNPs derived from callus extract showed better results with 24.00 ± 1.00 mm zones of inhibition. This protocol deserves the recognition of the antibacterial potential of AgNPs synthesized from CP plant extracts.
In the marine environment, seaweeds are a rich natural resource. Marine algae deliver several external and internal ecological resources. The distribution of marine algal abundances was among the most studied natural occurrences, and reliable variations are regularly seen in aquatic ecosystems. This study aimed to explore a diverse group of seaweeds observed from the Shivrajpur coast, Gujarat, from December 2021. The study identified 70 species across 36 genera and 24 families. Among these, eighteen species belong to Chlorophyta, twenty-two from Phaeophyta and thirty from Rhodophyta were recorded. Compared to brown and green algae, red algae are the most prominent. But based on abundance, brown algae are dominant. Throughout the study, some economically important seaweeds are also found. Three significant orders, Fucales, Dictyotaleas, and Ceramiales, are recorded at this coastal site. In addition, many species were recorded from the Dictyotaceae and Sargassaceae families. This research outline provides the diverse seaweed resources available in the chosen location, which will be utilized in future ecological studies.
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