Paper · 2019 · Scientific Reports

Cold Atmospheric Plasma-Activated Water Irrigation Induces Defense Hormone and Gene expression in Tomato seedlings

Bhawana Adhikari; Manish Adhikari; Bhagirath Ghimire; et al.

5
claims
10
verbatim quotes
197
citations
2
research areas
✓
Open access · cc-by

Abstract

Plants are very vulnerable to pathogen attacks and environmental stress as they are exposed to harsh environments in natural conditions. However, they have evolved a self-defense system whereby reactive oxygen and nitrogen species (RONS) act as double-edged swords by imposing (at higher concentration) and mitigating (at lower concentration) environmental stress. Cold plasma is emerging as a feasible option to produce a variety of RONS in a controlled manner when amalgamate with water. Cold plasma activated/treated water (PAW) contains a variety of RONS at concentrations, which may help to activate the plant's defense system components. In the present study, we examine the effect of cold atmospheric-air jet plasma exposure (15 min, 30 min, and 60 min) on the water's RONS level, as well as the impact of PAW irrigation, (assigned as 15PAW, 30PAW, and 60PAW) on tomato seedlings growth and defense response. We found that PAW irrigation (priming) upregulate seedlings growth, endogenous RONS, defense hormone (salicylic acid and jasmonic acid), and expression of key pathogenesis related (PR) gene. 30 min PAW contains RONS at concentrations which can induce non-toxic signaling. The present study suggests that PAW irrigation can be beneficial for agriculture as it modulates plant growth as well as immune response components.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PAW irrigation increased tomato seedling growth.

Taxon
Tomato seedlingsSolanum lycopersicumt0
Treatment
PAW irrigation (priming)e0
Outcome
seedlings growthe0
Direction
upregulatee0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“We found that PAW irrigation (priming) upregulate seedlings growth, endogenous RONS, defense hormone (salicylic acid and jasmonic acid), and expression of key pathogenesis related (PR) gene.”

✓ located verbatim in the source · abstract, characters 916–1106 · show in text ↑
t0

“Tomato seedlings”

✓ located verbatim in the source · title, characters 98–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PAW irrigation increased endogenous RONS in tomato seedlings.

Taxon
Tomato seedlingsSolanum lycopersicumt0
Treatment
PAW irrigation (priming)e0
Outcome
endogenous RONSe0
Direction
upregulatee0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“We found that PAW irrigation (priming) upregulate seedlings growth, endogenous RONS, defense hormone (salicylic acid and jasmonic acid), and expression of key pathogenesis related (PR) gene.”

✓ located verbatim in the source · abstract, characters 916–1106 · show in text ↑
t0

“Tomato seedlings”

✓ located verbatim in the source · title, characters 98–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PAW irrigation increased salicylic acid and jasmonic acid defense hormones in tomato seedlings.

Taxon
Tomato seedlingsSolanum lycopersicumt0
Treatment
PAW irrigation (priming)e0
Outcome
defense hormone (salicylic acid and jasmonic acid)e0
Direction
upregulatee0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“We found that PAW irrigation (priming) upregulate seedlings growth, endogenous RONS, defense hormone (salicylic acid and jasmonic acid), and expression of key pathogenesis related (PR) gene.”

✓ located verbatim in the source · abstract, characters 916–1106 · show in text ↑
t0

“Tomato seedlings”

✓ located verbatim in the source · title, characters 98–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PAW irrigation increased expression of a pathogenesis related gene in tomato seedlings.

Taxon
Tomato seedlingsSolanum lycopersicumt0
Treatment
PAW irrigation (priming)e0
Gene
pathogenesis related (PR) genee0
Outcome
expression of key pathogenesis related (PR) genee0
Direction
upregulatee0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“We found that PAW irrigation (priming) upregulate seedlings growth, endogenous RONS, defense hormone (salicylic acid and jasmonic acid), and expression of key pathogenesis related (PR) gene.”

✓ located verbatim in the source · abstract, characters 916–1106 · show in text ↑
t0

“Tomato seedlings”

✓ located verbatim in the source · title, characters 98–114 · show in text ↑
Observationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Thirty-minute PAW contained RONS concentrations capable of inducing non-toxic signaling.

Taxon
Tomato seedlingsSolanum lycopersicumt0
Treatment
30 min PAWe0
Outcome
non-toxic signalinge0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“30 min PAW contains RONS at concentrations which can induce non-toxic signaling.”

✓ located verbatim in the source · abstract, characters 1107–1187 · show in text ↑
t0

“Tomato seedlings”

✓ located verbatim in the source · title, characters 98–114 · show in text ↑

irrigation · molecular: expression · Solanum lycopersicum (tomato)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. negative
  2. positive
See all 3 papers →

irrigation · physiology: hormones · Solanum lycopersicum (tomato)Positive and negative results

6 papers: 3 positive, 3 negative or no effect

2 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

2 papers more in this group

See all 6 papers →

physical treatment · growth · Solanum lycopersicum (tomato)Positive and negative results

16 papers: 13 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. no effect

12 papers more in this group

See all 16 papers →

seed treatment · growth · Solanum lycopersicum (tomato)Positive and negative results

131 papers: 121 positive, 10 negative or no effect

120 papers in the same direction as this paper · 10 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

127 papers more in this group

See all 131 papers →

irrigation · growth · Solanum lycopersicum (tomato)Positive and negative results

175 papers: 106 positive, 69 negative or no effect

105 papers in the same direction as this paper · 67 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

171 papers more in this group

See all 175 papers →

physical treatment · molecular: expression · Solanum lycopersicum (tomato)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

seed treatment · physiology: hormones · Solanum lycopersicum (tomato)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

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

seed treatment · molecular: expression · Solanum lycopersicum (tomato)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 →

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.