Related Experiment Video
Updated: Jul 30, 2025
08:27
Analysis of Effect of Compound Salt Stress on Seed Germination and Salt Tolerance Analysis of Pepper Capsicum annuum L.
Published on: November 30, 2022
4.5K
Coastal Halophytes: Potent Source of Bioactive Molecules from Saline Environment
Milan Stanković1, Zorica Stojanović-Radić2, Dragana Jakovljević1
1Department of Biology and Ecology, Faculty of Science, University of Kragujevac, 34000 Kragujevac, Serbia.
Plants (Basel, Switzerland)
|May 13, 2023
Summary
Coastal Balkan halophytes are rich sources of phenolic compounds, exhibiting significant antioxidant and antimicrobial activities comparable to medicinal plants. Key species like Polygonum maritimum and Limonium vulgare show promising potential for natural product development.
Area of Science:
- Phytochemistry
- Pharmacognosy
- Marine Botany
Background:
- Halophytes, plants adapted to saline environments, are increasingly recognized for their unique biochemical profiles.
- Coastal ecosystems, particularly in the Balkan Peninsula, harbor diverse halophytic flora with potential medicinal properties.
Purpose of the Study:
- To comparatively analyze the secondary metabolites content and biological activities of 24 halophytes from the Balkan Peninsula.
- To evaluate the antioxidant and antimicrobial potential of dry methanolic extracts (DME) and crude water extracts (CWE).
- To compare the phytochemical profile and bioactivity of these halophytes with established medicinal plants.
Main Methods:
- Quantification of total phenolics, flavonoids, tannins, and anthocyanins in DME and CWE.
- Assay of antioxidant activity using standard methods.
- Evaluation of antimicrobial activity against various pathogens.
- Comparative analysis of results with known medicinal plant data.
Main Results:
- Phenolic content varied significantly, with some halophytes showing levels comparable to or exceeding medicinal plants.
- Polygonum maritimum and Limonium vulgare exhibited the strongest antioxidant properties.
- Limonium vulgare, L. angustifolium, and Artemisia maritima demonstrated significant antimicrobial potential.
- Extracts from coastal halophytes represent rich natural sources of bioactive phenolic compounds.
Conclusions:
- Certain Balkan coastal halophytes are valuable natural resources for phenolic compounds.
- These halophytes possess notable antioxidant and antimicrobial properties, suggesting their utility in pharmaceutical and nutraceutical applications.
- Further research into specific compounds and mechanisms is warranted to fully exploit their therapeutic potential.
Related Concept Videos
02:02Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
01:28Factors Influencing Microbial Growth: Osmolarity
50
Osmolarity is the measure of solute concentration in a solution. It plays a critical role in determining water availability for organisms. Water moves across semipermeable membranes through osmosis, flowing from regions of lower solute concentration (more dilute) to regions of higher solute concentration (more concentrated).In high-solute environments, microbial cells lose water, leading to dehydration and inhibited growth. The extent to which water is available to microbes in such environments...
50
01:23Red Algae
71
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
71
01:21Green Algae
63
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
63
01:29Biosynthesis of Lipids
44
Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis...
44
01:20Tonicity in Plants
30.9K
Plant cells maintain appropriate osmotic balance in extreme conditions. For instance, plants in dry environments store water in vacuoles, limit the opening of their stoma, and have thick, waxy cuticles to prevent unnecessary water loss. Some species of plants that live in salty environments store salt in their roots. As a result, water osmosis occurs in the root from the surrounding soil.
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
30.9K