Paper · 2019 · Annals of Agricultural Sciences

Effect of Calotropis procera L. plant extract on seeds germination and the growth of microorganisms

Asmaa Mahmoud Radwan; Huda A. Alghamdi; Sahar K.M. Kenawy

8
claims
8
verbatim quotes
44
citations
2
research areas
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Open access · cc-by-nc-nd

Abstract

The present study intended to investigate the effect of aqueous extract from Calotropis procera L. on growth of wheat (Triticum aestivum L.), barley (Hordeum vulgare L.) and some pathogenic microorganisms (Escherichia coli L. and Staphylococcus aureus R.) by the laboratory experiments. Also, phytochemical screening of aqueous extract of C. procera was qualitatively tested for the presence of some bioactive compounds (alkaloids, phenolics, flavonoids, tannins, saponins, sterols and terpenoids). Results showed that higher concentrations of C. procera extract (7% and 10%) significantly reduced germination percentage, radicle length and plumule length of wheat as compared to control. In contrast, the aqueous extract had not effect on seed germination percentage of barley but had a great inhibition effect on length of radicle and plumule. Also results showed that aqueous extract of C. procera effect on the pathogenic microorganisms Escherichia coli L. and Staphylococcus aureus R. in which there was a marked increase inhibition in growth of two microorganisms with the higher concentration. The main component of C. procera may be phenolics compound and flavonoids that may be responsible for their action on seed germination of the studied plants and growth of two tested microorganisms.

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Claims 8

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Higher Calotropis extract concentrations significantly reduced wheat germination percentage versus control.

Treatment
C. procera extract (7% and 10%)e0
Outcome
germination percentagee0
Direction
reducede0
Comparator
controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“higher concentrations of C. procera extract (7% and 10%) significantly reduced germination percentage, radicle length and plumule length of wheat as compared to control”

✓ located verbatim in the source · abstract, characters 519–687 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Higher Calotropis extract concentrations significantly reduced wheat radicle length versus control.

Treatment
C. procera extract (7% and 10%)e0
Outcome
radicle lengthe0
Direction
reducede0
Comparator
controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“higher concentrations of C. procera extract (7% and 10%) significantly reduced germination percentage, radicle length and plumule length of wheat as compared to control”

✓ located verbatim in the source · abstract, characters 519–687 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Higher Calotropis extract concentrations significantly reduced wheat plumule length versus control.

Treatment
C. procera extract (7% and 10%)e0
Outcome
plumule lengthe0
Direction
reducede0
Comparator
controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“higher concentrations of C. procera extract (7% and 10%) significantly reduced germination percentage, radicle length and plumule length of wheat as compared to control”

✓ located verbatim in the source · abstract, characters 519–687 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Calotropis aqueous extract did not affect barley seed germination percentage.

Treatment
aqueous extracte0
Outcome
seed germination percentagee0
Direction
not effecte0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the aqueous extract had not effect on seed germination percentage of barley”

✓ located verbatim in the source · abstract, characters 702–777 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calotropis aqueous extract inhibited barley radicle and plumule length.

Treatment
aqueous extracte0
Outcome
length of radicle and plumulee0
Direction
inhibitione0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the aqueous extract had not effect on seed germination percentage of barley but had a great inhibition effect on length of radicle and plumule”

✓ located verbatim in the source · abstract, characters 702–844 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The Calotropis extract contained alkaloids, phenolics and flavonoids.

Taxon
C. proceraCalotropis procerae0
Outcome
presence of some bioactive compounds (alkaloids, phenolics, flavonoidse0

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

Calotropis procera
Calotropis procera · TaxonWilfredo Rodríguez · CC0 · Wikimedia Commons ↗

Verbatim

e0

“phytochemical screening of aqueous extract of C. procera was qualitatively tested for the presence of some bioactive compounds (alkaloids, phenolics, flavonoids, tannins, saponins, sterols and terpenoids)”

✓ located verbatim in the source · abstract, characters 293–497 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The Calotropis extract contained tannins, saponins and sterols.

Taxon
C. proceraCalotropis procerae0
Outcome
tannins, saponins, sterolse0

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

Calotropis procera
Calotropis procera · TaxonWilfredo Rodríguez · CC0 · Wikimedia Commons ↗

Verbatim

e0

“phytochemical screening of aqueous extract of C. procera was qualitatively tested for the presence of some bioactive compounds (alkaloids, phenolics, flavonoids, tannins, saponins, sterols and terpenoids)”

✓ located verbatim in the source · abstract, characters 293–497 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The Calotropis extract contained terpenoids.

Taxon
C. proceraCalotropis procerae0
Outcome
terpenoidse0

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

Calotropis procera
Calotropis procera · TaxonWilfredo Rodríguez · CC0 · Wikimedia Commons ↗

Verbatim

e0

“phytochemical screening of aqueous extract of C. procera was qualitatively tested for the presence of some bioactive compounds (alkaloids, phenolics, flavonoids, tannins, saponins, sterols and terpenoids)”

✓ located verbatim in the source · abstract, characters 293–497 · show in text ↑

Calotropis procera · growth · Triticum aestivum (wheat)Results agree

4 papers: 0 positive, 4 negative or no effect

3 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative
See all 4 papers →

botanical · growth · Hordeum vulgare (barley)Positive and negative results

84 papers: 48 positive, 36 negative or no effect

35 papers in the same direction as this paper · 48 in the opposite direction

  1. positive
  2. positive
  3. positive

80 papers more in this group

See all 84 papers →

botanical · growth · Triticum aestivum (wheat)Positive and negative results

435 papers: 206 positive, 229 negative or no effect

228 papers in the same direction as this paper · 206 in the opposite direction

  1. negative
  2. positive
  3. positive

431 papers more in this group

See all 435 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.