Abstract
Promotion actions of 5-aminolevulinic acid (ALA) on plant growth of radish (Raphanus sativus), soybean (Glycine max), maize (Zea mays), and rice (Oryza sativa) were investigated. Fresh shoot weight of the test plants increased in ranges of 4 to 40% with relatively low concentrations (0.06 to 0.6 mM for radish, soybean, and maize; 0.06 to 0.60 M for rice) of ALA, whereas with relatively high concentrations (1.80 to 6.00 mM for radish, soybean, and maize; 60 to 600 M for rice) of ALA, the growth of the four plant species was inhibited in range of 30 to 70%. Among the four plant species, rice was the most susceptible. In rice, the root treatment of ALA affected more than the foliar treatment. The growth of rice seedlings, young roots and leaves, was promoted with 0.06 to 0.6 M of ALA application, but it was inhibited with increasing the ALA concentrations treated. When 0.1 to 1.0 mM of ALA was treated to radish, soybean, and maize, and 0.2 to 1.0 M of ALA was applied to rice, chlorophyll synthesis in the plants was improved, but no difference was found among the plant species. The ALA application in relatively low concentrations tended to inhibit the chlorophyll biosynthesis of the plants during the greening stage. In addition, when 0.6 mM (0.6 M for rice) of ALA was treated with plant nutrients to the plants, chlorophyll contents were markedly increased as comparing with ALA treated alone.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Low ALA concentrations increased fresh shoot weight in radish, soybean, and maize by 4 to 40%.
- Taxon
- radish, soybean, and maize
Raphanus sativus
Glycine max
Zea mayse0 - Treatment
- 0.06 to 0.6 mMe0
- Outcome
- Fresh shoot weighte0
- Direction
- increasede0
- Value
- 4 to 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh shoot weight of the test plants increased in ranges of 4 to 40% with relatively low concentrations (0.06 to 0.6 mM for radish, soybean, and maize; 0.06 to 0.60 M for rice) of ALA”
Claim · model-written summary
Low ALA concentrations increased fresh shoot weight in rice by 4 to 40%.
- Taxon
- rice
Oryza sativae0 - Treatment
- 0.06 to 0.60 Me0
- Outcome
- Fresh shoot weighte0
- Direction
- increasede0
- Value
- 4 to 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh shoot weight of the test plants increased in ranges of 4 to 40% with relatively low concentrations (0.06 to 0.6 mM for radish, soybean, and maize; 0.06 to 0.60 M for rice) of ALA”
Claim · model-written summary
High ALA concentrations inhibited growth of radish, soybean, and maize by 30 to 70%.
- Taxon
- radish, soybean, and maizeRaphanus sativusGlycine maxZea mayse0
- Treatment
- 1.80 to 6.00 mMe0
- Outcome
- growthe0
- Direction
- inhibitede0
- Value
- 30 to 70%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relatively high concentrations (1.80 to 6.00 mM for radish, soybean, and maize; 60 to 600 M for rice) of ALA, the growth of the four plant species was inhibited in range of 30 to 70%”
Claim · model-written summary
High ALA concentrations inhibited rice growth by 30 to 70%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relatively high concentrations (1.80 to 6.00 mM for radish, soybean, and maize; 60 to 600 M for rice) of ALA, the growth of the four plant species was inhibited in range of 30 to 70%”
Claim · model-written summary
Rice was the most susceptible of the four species to ALA.
- Taxon
- riceOryza sativae0
- Outcome
- most susceptiblee0
- Comparator
- four plant speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the four plant species, rice was the most susceptible”
Claim · model-written summary
ALA root treatment affected rice more than foliar treatment.
- Taxon
- riceOryza sativae0
- Treatment
- root treatment of ALAe0
- Outcome
- affected moree0
- Direction
- moree0
- Comparator
- foliar treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In rice, the root treatment of ALA affected more than the foliar treatment”
Claim · model-written summary
ALA at 0.06 to 0.6 M promoted growth of rice seedlings, young roots and leaves.
- Taxon
- riceOryza sativae0
- Organ / stage
- seedlings, young roots and leavese0
- Treatment
- 0.06 to 0.6 M of ALA applicatione0
- Outcome
- growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth of rice seedlings, young roots and leaves, was promoted with 0.06 to 0.6 M of ALA application”
Claim · model-written summary
Increasing ALA concentrations inhibited rice seedling growth.
- Taxon
- riceOryza sativae1
- Treatment
- increasing the ALA concentrationse0
- Outcome
- growthe1
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was inhibited with increasing the ALA concentrations treated”
e1“growth of rice seedlings, young roots and leaves”
Claim · model-written summary
ALA treatment improved chlorophyll synthesis in radish, soybean, and maize.
- Taxon
- radish, soybean, and maizeRaphanus sativusGlycine maxZea mayse0
- Treatment
- 0.1 to 1.0 mM of ALAe0
- Outcome
- chlorophyll synthesise0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When 0.1 to 1.0 mM of ALA was treated to radish, soybean, and maize, and 0.2 to 1.0 M of ALA was applied to rice, chlorophyll synthesis in the plants was improved”
Claim · model-written summary
ALA treatment improved chlorophyll synthesis in rice.
- Taxon
- riceOryza sativae0
- Treatment
- 0.2 to 1.0 M of ALAe0
- Outcome
- chlorophyll synthesise0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.2 to 1.0 M of ALA was applied to rice, chlorophyll synthesis in the plants was improved”
Claim · model-written summary
Chlorophyll synthesis response to ALA did not differ among plant species.
Verbatim
e0“no difference was found among the plant species”
e1“chlorophyll synthesis in the plants”
Claim · model-written summary
Low ALA concentrations tended to inhibit chlorophyll biosynthesis during greening.
- Taxon
- plantsViridiplantaee0
- Treatment
- ALA application in relatively low concentrationse0
- Outcome
- chlorophyll biosynthesise0
- Direction
- inhibite0
- Qualifier
- during the greening stagee0
Not reportedComparator
Verbatim
e0“The ALA application in relatively low concentrations tended to inhibit the chlorophyll biosynthesis of the plants during the greening stage”
Claim · model-written summary
ALA with plant nutrients markedly raised chlorophyll content relative to ALA alone.
Verbatim
e0“when 0.6 mM (0.6 M for rice) of ALA was treated with plant nutrients to the plants, chlorophyll contents were markedly increased as comparing with ALA treated alone”
The same questions in other papers
5-aminolevulinic acid · physiology: pigments · Oryza sativa (rice)Results differ
2 in the opposite direction
- no effect
- negative
5-aminolevulinic acid · physiology: pigments · Zea mays (maize)Results differ
1 paper in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
5-aminolevulinic acid · physiology: pigments · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- positive
5-aminolevulinic acid · growth · Oryza sativa (rice)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.