Paper · 2021 · Egyptian Academic Journal of Biological Sciences, H. Botany/Egyptian Academic Journal of Biological Sciences, H. Botany

Phytotoxic Activities of Aqueous Leaf Extract of Datura metel on Germination and Seedlings of Zea mays and Phaseolus vulgaris

Ige Komolafe; Adeniyi Fajobi; Christianah Dare; et al.

8
claims
21
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

This study examined the phytotoxicity of the extract of Datura metel. It involved the planting of seeds of monocot, yellow maize (Zea mays) and a dicot, brown bean (Phaseolus vulgaris), growth and analysis of seedlings of the two plants. Seeds of Z. mays were collected at the Institute of Agricultural Research and Training (IAR&T), Ibadan and the seeds of P. vulgaris were collected at International Institute for Tropical Agriculture (IITA), Ibadan, Nigeria. The leaf of D. metel was collected. The plant was identified and authenticated (FHI 111862) at Forestry Research Institute of Nigeria (FRIN) Ibadan, Nigeria. The collected leaves were carefully washed under running tap water and air-dried at room temperature for four weeks. The dry leaves were milled into a fine powder and extracted. The phytotoxic potentials of the extract were evaluated using a standard method. At the end of the experiment, seedlings were harvested, stem and leaf were separately collected, and shoot length of seedlings was measured, and kept frozen for the estimation of total protein, soluble sugar, free amino acids, proline, and plant pigments. The findings revealed that different concentrations of aqueous extract of the leaf of D. metel retarded the rate of germination of seeds, significantly inhibited the shoot length of P. vulgaris and Z. mays andreduced concentrations of chlorophyll, free amino acids, protein, sugar, and proline. In conclusion, this study revealed that the extract exhibited a deleterious effect on germination, growth and biochemical parameters in seedlings of P. vulgaris and Z. mays.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 8

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Datura extract retarded maize seed germination.

Taxon
Zea maysZea mayst0
Treatment
different concentrations of aqueous extract of the leaf of D. metele0
Interactor
D. metelDatura metele0other
Outcome
rate of germinatione0
Direction
retardede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Datura metel
Datura metel · Interactor葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“different concentrations of aqueous extract of the leaf of D. metel retarded the rate of germination of seeds”

✓ located verbatim in the source · abstract, characters 1162–1271 · show in text ↑
e1

“seedlings of P. vulgaris and Z. mays”

✓ located verbatim in the source · abstract, characters 1566–1602 · show in text ↑
t0

“Zea mays”

✓ located verbatim in the source · title, characters 94–102 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Datura extract retarded bean seed germination.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
different concentrations of aqueous extract of the leaf of D. metele0
Interactor
D. metelDatura metele0other
Outcome
rate of germinatione0
Direction
retardede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Datura metel
Datura metel · Interactor葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“different concentrations of aqueous extract of the leaf of D. metel retarded the rate of germination of seeds”

✓ located verbatim in the source · abstract, characters 1162–1271 · show in text ↑
t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 107–125 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Datura extract significantly inhibited bean shoot length.

Taxon
P. vulgarisPhaseolus vulgarise0
Treatment
aqueous extract of the leaf of D. metele1
Interactor
D. metelDatura metele1other
Outcome
shoot lengthe0
Direction
inhibitede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Datura metel
Datura metel · Interactor葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“significantly inhibited the shoot length of P. vulgaris and Z. mays”

✓ located verbatim in the source · abstract, characters 1273–1340 · show in text ↑
e1

“aqueous extract of the leaf of D. metel”

✓ located verbatim in the source · abstract, characters 1190–1229 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Datura extract significantly inhibited maize shoot length.

Taxon
Z. maysZea mayse0
Treatment
aqueous extract of the leaf of D. metele1
Interactor
D. metelDatura metele1other
Outcome
shoot lengthe0
Direction
inhibitede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Datura metel
Datura metel · Interactor葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“significantly inhibited the shoot length of P. vulgaris and Z. mays”

✓ located verbatim in the source · abstract, characters 1273–1340 · show in text ↑
e1

“aqueous extract of the leaf of D. metel”

✓ located verbatim in the source · abstract, characters 1190–1229 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Datura extract reduced chlorophyll, free amino acids and protein in bean seedlings.

Taxon
P. vulgarisPhaseolus vulgarise1
Treatment
aqueous extract of the leaf of D. metele2
Interactor
D. metelDatura metele2other
Outcome
concentrations of chlorophyll, free amino acids, proteine0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Datura metel
Datura metel · Interactor葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“reduced concentrations of chlorophyll, free amino acids, protein, sugar, and proline.”

✓ located verbatim in the source · abstract, characters 1344–1429 · show in text ↑
e1

“seedlings of P. vulgaris and Z. mays”

✓ located verbatim in the source · abstract, characters 1566–1602 · show in text ↑
e2

“aqueous extract of the leaf of D. metel”

✓ located verbatim in the source · abstract, characters 1190–1229 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Datura extract reduced sugar and proline in bean seedlings.

Taxon
P. vulgarisPhaseolus vulgarise1
Treatment
aqueous extract of the leaf of D. metele2
Interactor
D. metelDatura metele2other
Outcome
sugar, and prolinee0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Datura metel
Datura metel · Interactor葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“reduced concentrations of chlorophyll, free amino acids, protein, sugar, and proline.”

✓ located verbatim in the source · abstract, characters 1344–1429 · show in text ↑
e1

“seedlings of P. vulgaris and Z. mays”

✓ located verbatim in the source · abstract, characters 1566–1602 · show in text ↑
e2

“aqueous extract of the leaf of D. metel”

✓ located verbatim in the source · abstract, characters 1190–1229 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Datura extract reduced chlorophyll, free amino acids and protein in maize seedlings.

Taxon
Z. maysZea mayse1
Treatment
aqueous extract of the leaf of D. metele2
Interactor
D. metelDatura metele2other
Outcome
concentrations of chlorophyll, free amino acids, proteine0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Datura metel
Datura metel · Interactor葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“reduced concentrations of chlorophyll, free amino acids, protein, sugar, and proline.”

✓ located verbatim in the source · abstract, characters 1344–1429 · show in text ↑
e1

“seedlings of P. vulgaris and Z. mays”

✓ located verbatim in the source · abstract, characters 1566–1602 · show in text ↑
e2

“aqueous extract of the leaf of D. metel”

✓ located verbatim in the source · abstract, characters 1190–1229 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Datura extract reduced sugar and proline in maize seedlings.

Taxon
Z. maysZea mayse1
Treatment
aqueous extract of the leaf of D. metele2
Interactor
D. metelDatura metele2other
Outcome
sugar, and prolinee0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Datura metel
Datura metel · Interactor葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“reduced concentrations of chlorophyll, free amino acids, protein, sugar, and proline.”

✓ located verbatim in the source · abstract, characters 1344–1429 · show in text ↑
e1

“seedlings of P. vulgaris and Z. mays”

✓ located verbatim in the source · abstract, characters 1566–1602 · show in text ↑
e2

“aqueous extract of the leaf of D. metel”

✓ located verbatim in the source · abstract, characters 1190–1229 · show in text ↑

botanical · physiology: osmolytes · Phaseolus vulgaris (common bean)Positive and negative results

5 papers: 2 positive, 3 negative or no effect

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botanical · physiology: pigments · Phaseolus vulgaris (common bean)Positive and negative results

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botanical · physiology: osmolytes · Zea mays (maize)Positive and negative results

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botanical · physiology: pigments · Zea mays (maize)Positive and negative results

26 papers: 18 positive, 8 negative or no effect

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botanical · growth · Phaseolus vulgaris (common bean)Positive and negative results

88 papers: 50 positive, 38 negative or no effect

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botanical · growth · Zea mays (maize)Positive and negative results

340 papers: 198 positive, 142 negative or no effect

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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.