Paper · 2019 · European Journal of Medicinal Plants

In vitro Antifungal Activity of Plant Extracts, Hydrolates and Essential Oils of Some Medicinal Plants and Control of Cucumber Anthracnose

Amanda P. Mattos; Fabricio P. Povh; Bruna B. Rissato; et al.

5
claims
5
verbatim quotes
6
citations
3
research areas
✓
Open access

Abstract

Aims: This study is aimed to evaluate the in vitro antifungal activity effect of the crude aqueous extract (CAE), hydrolate (HY) and essential oil (EO) of Corymbia citriodora, Cymbopogon citratus, Cymbopogon flexuosus and Curcuma longa against the phytopathogenic fungi Alternaria steviae, Botryosphaeria dothidea, Colletotrichum gloeosporioides and Sclerotium rolfsii, and assess, in situ, the effectiveness of CAE of medicinal plants in reducing the severity of the cucumber anthracnose. Methodology: The EOs and HYs were obtained by hydrodistillation. The CAEs were prepared by the turbolysis method. Mycelial growth of the fungi was measured daily, by the diametrically opposite method. In the in vivo test, the CAEs were sprayed on the cotyledon leaves of healthy cucumber plants with three days after were inoculated with C. lagenarium. The severity of assessment of the disease was based on a scale of notes. Results: The medicinal plants studied showed antifungal activity against all or almost all pathogens. In general, treatment with CAE and HY of C. longa revealed the highest inhibition against the fungi tested. With the exception of the EO of C. longa, the other EOs showed total inhibition against all the fungi and in all the concentrations tested. Compared to control, in in vivo assays CAE of C. citratus presents a potential for control of cucumber anthracnose reducing the severity of the disease. Conclusion: The medicinal plants studied produce compounds associated with antimicrobial activity.

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Claims 5

Observationobservedoriginal resultmeasured

Claim · model-written summary

Medicinal plant preparations showed antifungal activity against all or almost all tested pathogens.

Taxon
medicinal plantse0
Outcome
antifungal activitye0

Not reportedDirection

Verbatim

e0

“The medicinal plants studied showed antifungal activity against all or almost all pathogens”

✓ located verbatim in the source · abstract, characters 925–1016 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

C. longa crude aqueous extract and hydrolate had the highest inhibition of tested fungi.

Taxon
C. longaCurcuma longae0
Treatment
CAE and HY of C. longae0
Outcome
inhibition against the fungi testede0
Direction
higheste0

Not reportedComparator

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

Curcuma longa
Curcuma longa · TaxonJ.M.Garg · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“treatment with CAE and HY of C. longa revealed the highest inhibition against the fungi tested”

✓ located verbatim in the source · abstract, characters 1030–1124 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Essential oils other than C. longa totally inhibited all tested fungi at all concentrations.

Taxon
C. longaCurcuma longae0
Treatment
other EOse0
Outcome
total inhibition against all the fungie0
Qualifier
all the concentrations testede0
Comparator
EO of C. longae0

Not reportedDirection

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

Curcuma longa
Curcuma longa · TaxonJ.M.Garg · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“With the exception of the EO of C. longa, the other EOs showed total inhibition against all the fungi and in all the concentrations tested”

✓ located verbatim in the source · abstract, characters 1126–1264 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

C. citratus crude aqueous extract reduced cucumber anthracnose severity relative to control.

Taxon
cucumberCucumis sativuse0
Treatment
CAE of C. citratuse0
Outcome
cucumber anthracnosee0
Direction
reducinge0
Comparator
controle0

Not reportedInteractor

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared to control, in in vivo assays CAE of C. citratus presents a potential for control of cucumber anthracnose reducing the severity of the disease”

✓ located verbatim in the source · abstract, characters 1266–1417 · show in text ↑
Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The studied medicinal plants produce compounds associated with antimicrobial activity.

Taxon
medicinal plantse0
Compound
compoundse0
Outcome
antimicrobial activitye0

Not reportedDirection

Verbatim

e0

“The medicinal plants studied produce compounds associated with antimicrobial activity”

✓ located verbatim in the source · abstract, characters 1431–1516 · show in text ↑

Cymbopogon citratus · disease · Cucumis sativus (cucumber)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

botanical · disease · Curcuma longa (turmeric)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

3 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

botanical · disease · Cucumis sativus (cucumber)Positive and negative results

57 papers: 49 positive, 8 negative or no effect

48 papers in the same direction as this paper · 8 in the opposite direction

  1. no effect
  2. negative
  3. negative

53 papers more in this group

See all 57 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.