Paper · 2016 · Annals of Agricultural Sciences

2,4-Dichlorophenoxy acetic acid, abscisic acid, and hydrogen peroxide induced resistance-related components against potato early blight (Alternaria solani, Sorauer)

Atef M.K. Nassar; Ibrahim A.A. Adss

8
claims
16
verbatim quotes
20
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Induction of acquired resistance activates defense-related genes. Current study aimed to (a) initiate potato acquired resistance to the Early Blight disease caused by Alternaria solani through treating potato plants with low and repetitive doses of 2,4-dichlorophenoxy acetic acid (2,4-D), abscisic acid (AB), and hydrogen peroxide (H2O2) and (b) test the success of the use of the chemical inducers along with the application of fungicides. Potato cultivars Nicola and Spunta were treated once per wk for 6 wk and challenged 1 wk later by in the control of A. solani. Results showed that peroxidase (POD), phenylalanine ammonia lyase (PAL), and polyphenoloxidase (PPO) enzyme activities and gene regulation were significantly increased after 1 d of infection and lasted for more than 15 d. The 2,4-D and H2O2 inducers significantly increased both enzyme activities and gene expression of PAL, PPO, and POD for more than 15 d post inoculation. PAL was the most increased at the enzyme activity and gene expression levels. Incorporation of such in-expensive treatments might reduce management costs and reduce the environmental pollution.

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

Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

After infection, POD, PAL and PPO activities increased significantly for more than 15 days.

Interactor
Alternaria solaniAlternaria solanit0pathogen
Gene
peroxidase (POD), phenylalanine ammonia lyase (PAL), and polyphenoloxidase (PPO)e0
Outcome
enzyme activitiese0
Direction
increasede0
Qualifier
more than 15 de0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“peroxidase (POD), phenylalanine ammonia lyase (PAL), and polyphenoloxidase (PPO) enzyme activities and gene regulation were significantly increased after 1 d of infection and lasted for more than 15 d”

✓ located verbatim in the source · abstract, characters 589–789 · show in text ↑
t0

“potato early blight (Alternaria solani, Sorauer)”

✓ located verbatim in the source · title, characters 116–164 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

After infection, POD, PAL and PPO gene regulation increased significantly for more than 15 days.

Interactor
Alternaria solaniAlternaria solanit0pathogen
Gene
peroxidase (POD), phenylalanine ammonia lyase (PAL), and polyphenoloxidase (PPO)e0
Outcome
gene regulatione0
Direction
increasede0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“peroxidase (POD), phenylalanine ammonia lyase (PAL), and polyphenoloxidase (PPO) enzyme activities and gene regulation were significantly increased after 1 d of infection and lasted for more than 15 d”

✓ located verbatim in the source · abstract, characters 589–789 · show in text ↑
t0

“potato early blight (Alternaria solani, Sorauer)”

✓ located verbatim in the source · title, characters 116–164 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

2,4-D significantly increased PAL, PPO and POD enzyme activities for more than 15 days after inoculation.

Treatment
2,4-De0
Interactor
Alternaria solaniAlternaria solanit0pathogen
Gene
PAL, PPO, and PODe0
Outcome
enzyme activitiese0
Direction
increasede0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The 2,4-D and H2O2 inducers significantly increased both enzyme activities and gene expression of PAL, PPO, and POD for more than 15 d post inoculation”

✓ located verbatim in the source · abstract, characters 791–942 · show in text ↑
t0

“potato early blight (Alternaria solani, Sorauer)”

✓ located verbatim in the source · title, characters 116–164 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

H2O2 significantly increased PAL, PPO and POD enzyme activities for more than 15 days after inoculation.

Treatment
H2O2e0
Interactor
Alternaria solaniAlternaria solanit0pathogen
Gene
PAL, PPO, and PODe0
Outcome
enzyme activitiese0
Direction
increasede0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The 2,4-D and H2O2 inducers significantly increased both enzyme activities and gene expression of PAL, PPO, and POD for more than 15 d post inoculation”

✓ located verbatim in the source · abstract, characters 791–942 · show in text ↑
t0

“potato early blight (Alternaria solani, Sorauer)”

✓ located verbatim in the source · title, characters 116–164 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

2,4-D significantly increased PAL, PPO and POD gene expression for more than 15 days after inoculation.

Treatment
2,4-De0
Gene
PAL, PPO, and PODe0
Outcome
gene expressione0
Direction
increasede0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The 2,4-D and H2O2 inducers significantly increased both enzyme activities and gene expression of PAL, PPO, and POD for more than 15 d post inoculation”

✓ located verbatim in the source · abstract, characters 791–942 · show in text ↑
t0

“potato early blight (Alternaria solani, Sorauer)”

✓ located verbatim in the source · title, characters 116–164 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

H2O2 significantly increased PAL, PPO and POD gene expression for more than 15 days after inoculation.

Treatment
H2O2e0
Gene
PAL, PPO, and PODe0
Outcome
gene expressione0
Direction
increasede0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The 2,4-D and H2O2 inducers significantly increased both enzyme activities and gene expression of PAL, PPO, and POD for more than 15 d post inoculation”

✓ located verbatim in the source · abstract, characters 791–942 · show in text ↑
t0

“potato early blight (Alternaria solani, Sorauer)”

✓ located verbatim in the source · title, characters 116–164 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

PAL increased most at the enzyme activity and gene expression levels.

Gene
PALe0
Outcome
enzyme activity and gene expression levelse0
Direction
most increasede0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PAL was the most increased at the enzyme activity and gene expression levels”

✓ located verbatim in the source · abstract, characters 944–1020 · show in text ↑
t0

“potato early blight (Alternaria solani, Sorauer)”

✓ located verbatim in the source · title, characters 116–164 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors suggest that these inexpensive treatments might reduce management costs and environmental pollution.

Treatment
in-expensive treatmentse0
Outcome
reduce management costs and reduce the environmental pollutione0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Incorporation of such in-expensive treatments might reduce management costs and reduce the environmental pollution”

✓ located verbatim in the source · abstract, characters 1022–1136 · show in text ↑
t0

“potato early blight (Alternaria solani, Sorauer)”

✓ located verbatim in the source · title, characters 116–164 · show in text ↑

hydrogen peroxide · molecular: expression · Solanum tuberosum (potato)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. no effect
  2. positive
See all 3 papers →

hydrogen peroxide · Alternaria solani · Solanum tuberosum (potato)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 →

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.