Paper · 2012 · Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology

EFFECT OF SOME ANTAGONISTIC BACTERIA IN REDUCING OF PEANUT DAMPING - OFF, ROOT AND POD ROT INCIDENCE CAUSED BY Rhizoctonia solani

Zeinab Hussien; E. Mahmoud; A. Metwaly; et al.

7
claims
11
verbatim quotes
7
citations
2
research areas
✓
Open access · cc-by

Abstract

Seventeen bacterial isolates from the soil, rhizosphere, geocarposphere, peanut roots and pegs beside three supplied bioagents (Bacillus subtilis, Pseudomonas putida and Pseudomonas fluorescens) used to study their effect on four isolates of Rhizoctonia solani. In vitro only nine isolates caused moderate to strong inhibition to the four tested isolates of R. solani. P. fluorescens (Pf.5) gave the highest significant antagonistic effect against the four tested isolates of R. solani on PDA medium followed by B. subtilis (Bs.1), P. putida (PP) and Bacillus sp (S.5). In greenhouse and field experiment, the most effective isolates in reducing peanut damping-off, root and pod rot diseases were P. fluorescens (Pf.5) followed by B. subtilis (Bs1) and Bacillus sp (S.5). Regarding to peanut pod yield, the highest total peanut pod yield in the two seasons (2009 and 2010) was obtained by B. subtilis (Bs1) followed by P. fluorescens. The obtained data clearly showed the ability of some tested bioaegents to be near to the fungicides effect (Rezolex-T) in reducing damping-off and peanut root and pod rots diseases. In this respect, in greenhouse and field trials P. fluorescens (Pf 5.) was the nearest one to fungicides effect in reduction of peanut damping-off and peanut root and pod rots and exceeded the commercial biocide effect (Rhizo-N), followed by Bacillus sp (S.5) and B. subtilis (Bs1) compared to other tested bioagents.

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Claims 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nine isolates inhibited the four R. solani isolates in vitro.

Interactor
R. solaniRhizoctonia solanie1pathogen
Outcome
inhibition to the four tested isolates of R. solanie1
Value
nine isolatese1

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“peanut roots and pegs”

✓ located verbatim in the source · abstract, characters 73–94 · show in text ↑
e1

“In vitro only nine isolates caused moderate to strong inhibition to the four tested isolates of R. solani”

✓ located verbatim in the source · abstract, characters 262–367 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

P. fluorescens Pf.5 had the strongest significant antagonism against R. solani.

Interactor
R. solaniRhizoctonia solanie1pathogen
Second interactor
P. fluorescens (Pf.5)Pseudomonas fluorescense1biocontrol_agent
Outcome
antagonistic effect against the four tested isolates of R. solanie1
Direction
higheste1

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗
Pseudomonas fluorescens
Pseudomonas fluorescens · Second interactorNinjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“peanut roots and pegs”

✓ located verbatim in the source · abstract, characters 73–94 · show in text ↑
e1

“P. fluorescens (Pf.5) gave the highest significant antagonistic effect against the four tested isolates of R. solani on PDA medium”

✓ located verbatim in the source · abstract, characters 369–499 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

B. subtilis, P. putida and Bacillus sp. followed Pf.5 in antagonistic activity.

Outcome
B. subtilis (Bs.1), P. putida (PP) and Bacillus sp (S.5)e1

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“peanut roots and pegs”

✓ located verbatim in the source · abstract, characters 73–94 · show in text ↑
e1

“followed by B. subtilis (Bs.1), P. putida (PP) and Bacillus sp (S.5)”

✓ located verbatim in the source · abstract, characters 500–568 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pf.5 was most effective against peanut damping-off, root and pod rot in greenhouse and field.

Treatment
P. fluorescens (Pf.5)e0
Interactor
P. fluorescens (Pf.5)Pseudomonas fluorescense0biocontrol_agent
Outcome
peanut damping-off, root and pod rot diseasese0
Direction
reducinge0
Setting
greenhouse and fielde1

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Pseudomonas fluorescens
Pseudomonas fluorescens · InteractorNinjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the most effective isolates in reducing peanut damping-off, root and pod rot diseases were P. fluorescens (Pf.5) followed by B. subtilis (Bs1) and Bacillus sp (S.5)”

✓ located verbatim in the source · abstract, characters 606–770 · show in text ↑
e1

“In greenhouse and field experiment”

✓ located verbatim in the source · abstract, characters 570–604 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

B. subtilis Bs1 gave the highest total peanut pod yield.

Treatment
B. subtilis (Bs1)e0
Interactor
B. subtilis (Bs1)Bacillus subtilise0biocontrol_agent
Outcome
total peanut pod yielde0
Direction
higheste0
Comparator
P. fluorescense0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Bacillus subtilis
Bacillus subtilis · InteractorY tambe (original uploader) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the highest total peanut pod yield in the two seasons (2009 and 2010) was obtained by B. subtilis (Bs1) followed by P. fluorescens”

✓ located verbatim in the source · abstract, characters 803–933 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Some bioagents approached Rezolex-T efficacy for disease reduction.

Outcome
damping-off and peanut root and pod rots diseasese0
Direction
reducinge0
Comparator
Rezolex-Te0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“the ability of some tested bioaegents to be near to the fungicides effect (Rezolex-T) in reducing damping-off and peanut root and pod rots diseases”

✓ located verbatim in the source · abstract, characters 968–1115 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pf.5 approached fungicide efficacy and exceeded Rhizo-N for peanut disease reduction.

Treatment
P. fluorescens (Pf 5.)e0
Interactor
P. fluorescens (Pf 5.)Pseudomonas fluorescense0biocontrol_agent
Outcome
peanut damping-off and peanut root and pod rotse0
Direction
reductione0
Comparator
Rhizo-Ne0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Pseudomonas fluorescens
Pseudomonas fluorescens · InteractorNinjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“P. fluorescens (Pf 5.) was the nearest one to fungicides effect in reduction of peanut damping-off and peanut root and pod rots and exceeded the commercial biocide effect (Rhizo-N)”

✓ located verbatim in the source · abstract, characters 1165–1345 · show in text ↑

Bacillus subtilis · yield · Arachis hypogaea (peanut)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

Pseudomonas fluorescens · disease · Arachis hypogaea (peanut)Results agree

14 papers: 14 positive, 0 negative or no effect

13 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

10 papers more in this group

See all 14 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.