Paper · 2008 · Journal of Medicinal Plants Research

Effects of three plant extracts (Ocimum gratissimum, Acalypha wilkesiana and Acalypha macrostachya) on post harvest pathogen of Persea americana

Erute Magdalene Ogbo; A. E. Oyibo

9
claims
16
verbatim quotes
28
citations
3
research areas
✓
Open access

Abstract

Disease assessment of Persea americana (Avocado) in a local market in Delta State Nigeria showed that only 7% of the fruits were healthy. 36% of the avocado fruits had Cercospora spot; 28% had Diotherella rot and 29% had anthracnose. Plant extracts of three different species; Ocimum gratissimum, Acalypha wilkesiana and Acalypha macrostachya were assessed for inhibitory effect on the radial growth of Cercospora purpurea. Ethanol extracts of the three plants caused total inhibition of C. purpurea. Crude extract of sterilized and un-sterilized water significantly reduced the radial growth of the fungus. However, the fungistatic effect of O. gratissimum was highest and was followed by A. macrostachya and then A. wilkesiana. Key words: Plant extracts, inhibition, cercospora spot, antifungal, disease assessment.

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 9

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Only 7% of market avocado fruits were healthy.

Taxon
Persea americanaPersea americanae0
Outcome
fruits were healthye0
Value
7%e0
Setting
Delta State Nigeriae0

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Disease assessment of Persea americana (Avocado) in a local market in Delta State Nigeria showed that only 7% of the fruits were healthy”

✓ located verbatim in the source · abstract, characters 0–136 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Cercospora spot affected 36% of avocado fruits.

Taxon
avocadoPersea americanae0
Interactor
CercosporaCercosporae0pathogen
Outcome
fruits had Cercospora spote0
Value
36%e0

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗
Cercospora
Cercospora · Interactor · picture of the genus (one of its species)Howard F. Schwartz, Colorado State University, United States · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“36% of the avocado fruits had Cercospora spot”

✓ located verbatim in the source · abstract, characters 138–183 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Diotherella rot affected 28% of avocado fruits.

Taxon
Persea americanaPersea americanat0
Interactor
Diotherellae0pathogen
Outcome
Diotherella rote0
Value
28%e0

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“28% had Diotherella rot”

✓ located verbatim in the source · abstract, characters 185–208 · show in text ↑
t0

“Persea americana”

✓ located verbatim in the source · title, characters 128–144 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Anthracnose affected 29% of avocado fruits.

Taxon
Persea americanaPersea americanat0
Outcome
anthracnosee0
Value
29%e0

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“29% had anthracnose”

✓ located verbatim in the source · abstract, characters 213–232 · show in text ↑
t0

“Persea americana”

✓ located verbatim in the source · title, characters 128–144 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethanol extract of Ocimum gratissimum totally inhibited Cercospora purpurea.

Taxon
Persea americanaPersea americanat0
Treatment
Ocimum gratissimume0
Interactor
Cercospora purpureaPseudocercospora purpureae0pathogen
Outcome
inhibition of C. purpureae0
Direction
total inhibitione0

Not reportedComparator

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Plant extracts of three different species; Ocimum gratissimum, Acalypha wilkesiana and Acalypha macrostachya were assessed for inhibitory effect on the radial growth of Cercospora purpurea. Ethanol extracts of the three plants caused total inhibition of C. purpurea”

✓ located verbatim in the source · abstract, characters 234–499 · show in text ↑
t0

“Persea americana”

✓ located verbatim in the source · title, characters 128–144 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethanol extract of Acalypha wilkesiana totally inhibited Cercospora purpurea.

Taxon
Persea americanaPersea americanat0
Treatment
Acalypha wilkesianae0
Interactor
Cercospora purpureaPseudocercospora purpureae0pathogen
Outcome
inhibition of C. purpureae0
Direction
total inhibitione0

Not reportedComparator

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Acalypha wilkesiana and Acalypha macrostachya were assessed for inhibitory effect on the radial growth of Cercospora purpurea. Ethanol extracts of the three plants caused total inhibition of C. purpurea”

✓ located verbatim in the source · abstract, characters 297–499 · show in text ↑
t0

“Persea americana”

✓ located verbatim in the source · title, characters 128–144 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethanol extract of Acalypha macrostachya totally inhibited Cercospora purpurea.

Taxon
Persea americanaPersea americanat0
Treatment
Acalypha macrostachyae0
Interactor
Cercospora purpureaPseudocercospora purpureae0pathogen
Outcome
inhibition of C. purpureae0
Direction
total inhibitione0

Not reportedComparator

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Acalypha macrostachya were assessed for inhibitory effect on the radial growth of Cercospora purpurea. Ethanol extracts of the three plants caused total inhibition of C. purpurea”

✓ located verbatim in the source · abstract, characters 321–499 · show in text ↑
t0

“Persea americana”

✓ located verbatim in the source · title, characters 128–144 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sterilized and unsterilized water extracts significantly reduced fungal growth.

Taxon
Persea americanaPersea americanat0
Treatment
Crude extract of sterilized and un-sterilized watere0
Outcome
radial growth of the funguse0
Direction
reducede0

Not reportedComparator

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Crude extract of sterilized and un-sterilized water significantly reduced the radial growth of the fungus”

✓ located verbatim in the source · abstract, characters 501–606 · show in text ↑
t0

“Persea americana”

✓ located verbatim in the source · title, characters 128–144 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Ocimum gratissimum had the strongest fungistatic effect, followed by Acalypha macrostachya and Acalypha wilkesiana.

Taxon
Persea americanaPersea americanat0
Outcome
fungistatic effecte0
Direction
higheste0

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the fungistatic effect of O. gratissimum was highest and was followed by A. macrostachya and then A. wilkesiana”

✓ located verbatim in the source · abstract, characters 617–728 · show in text ↑
t0

“Persea americana”

✓ located verbatim in the source · title, characters 128–144 · show in text ↑

botanical · disease · Persea americana (avocado)Results agree

9 papers: 9 positive, 0 negative or no effect

8 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 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.