Abstract
The study was aimed on the assessment of extracts from four arctic brown seaweeds ( Ascophyllum nodosum , Fucus vesiculosus , Laminaria digitata and Saccharina latissimi ) as stimulators of plant growth. Seaweeds were collected from the Rebalda Bay of the White Sea in August 2021. Extracts were obtained by isopropanol maceration method, then vacuum-dried at 40°C and stored at -4°C. Protein, polyphenols, chlorophyll, carotenoids, alginates, mannitol and polysaccharides contents of extracts were determined. Wheat and cucumber seedlings were used as test plants. Extracts from all four brown seaweeds enhanced growth, accelerated development of plants and increased chlorophyll content in leaves. Plant responses to seaweed extracts were concentration-dependent. Higher concentration of A. nodosum and F. vesiculosus extracts inhibited plant growth possibly due to higher phenolic content. The results show that investigated seaweed extracts obtained by isopropanol maceration method with subsequent drying and freezing have proven to be effective in plant growth stimulation.
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Claims 6
Claim · model-written summary
Extracts from all four brown seaweeds enhanced growth of wheat and cucumber seedlings.
- Taxon
- Wheat and cucumber seedlings
Cucumis sativus
Triticum aestivume0 - Treatment
- Extracts from all four brown seaweedse1
- Outcome
- growthe1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat and cucumber seedlings were used as test plants”
e1“Extracts from all four brown seaweeds enhanced growth”
Claim · model-written summary
Extracts from all four brown seaweeds accelerated development of wheat and cucumber plants.
- Taxon
- Wheat and cucumber seedlingsCucumis sativusTriticum aestivume0
- Treatment
- Extracts from all four brown seaweedse1
- Outcome
- development of plantse1
- Direction
- acceleratede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat and cucumber seedlings were used as test plants”
e1“Extracts from all four brown seaweeds enhanced growth, accelerated development of plants”
Claim · model-written summary
Extracts from all four brown seaweeds increased chlorophyll content in leaves of wheat and cucumber plants.
- Taxon
- Wheat and cucumber seedlingsCucumis sativusTriticum aestivume0
- Organ / stage
- leavese1
- Treatment
- Extracts from all four brown seaweedse1
- Outcome
- chlorophyll contente1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat and cucumber seedlings were used as test plants”
e1“Extracts from all four brown seaweeds enhanced growth, accelerated development of plants and increased chlorophyll content in leaves”
Claim · model-written summary
Plant responses to seaweed extracts were concentration-dependent.
- Taxon
- Wheat and cucumber seedlingsCucumis sativusTriticum aestivume0
- Treatment
- seaweed extractse1
- Outcome
- Plant responsese1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat and cucumber seedlings were used as test plants”
e1“Plant responses to seaweed extracts were concentration-dependent”
Claim · model-written summary
A higher concentration of Ascophyllum nodosum extract inhibited plant growth, possibly due to higher phenolic content.
- Taxon
- Wheat and cucumber seedlingsCucumis sativusTriticum aestivume0
- Treatment
- Higher concentration of A. nodosume1
- Outcome
- plant growthe1
- Direction
- inhibitede1
- Qualifier
- possibly due to higher phenolic contente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat and cucumber seedlings were used as test plants”
e1“Higher concentration of A. nodosum and F. vesiculosus extracts inhibited plant growth possibly due to higher phenolic content”
Claim · model-written summary
A higher concentration of Fucus vesiculosus extract inhibited plant growth, possibly due to higher phenolic content.
- Taxon
- Wheat and cucumber seedlingsCucumis sativusTriticum aestivume0
- Treatment
- F. vesiculosus extractse1
- Outcome
- plant growthe1
- Direction
- inhibitede1
- Qualifier
- possibly due to higher phenolic contente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat and cucumber seedlings were used as test plants”
e1“F. vesiculosus extracts inhibited plant growth possibly due to higher phenolic content”
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