Paper · 2023 · Journal of King Saud University - Science

Exogenous citric acid improves growth and yield by concerted modulation of antioxidant defense system in brinjal (Solanum melongena L.) under salt-stress

Naila Ali; Rafia Rafiq; Zaib-un-Nisa; et al.

20
claims
39
verbatim quotes
20
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Brinjal is sensitive to salinity, a common factor responsible for reducing its biomass and yield components. Recent research has demonstrated that citric acid/citrates can provide abiotic stress resistance in plants. In this study, Brinjal variety Pusakranti was treated with four concentrations of CA at 0, 100, 200, and 300 ppm applied foliarly under two levels of salt stress (0 mM and 60 mM NaCl) during spring 2021 with four replication per treatment. Salt stress reduced plant growth and yield attributes, pigments as well as metabolites in plants. Antioxidant enzyme activities of the plant increased compared to the non-stressed plants. While 300 ppm CA concentrations oenhanced the shoot and root fresh biomass (75% and 71.8 %) and dry biomass (82.5% and 40.7%), while 200 ppm CA application increased the fruits count by 50%, fruit diameter by 49% and leaf photosynthetic pigments by 61% compared to only salt-stressed plants. Similarly, CA application enhanced the antioxidants both enzymatic and non-enzymatic such as catalase by 42%, peroxidase by 66%, superoxide dismutase by 44%, polyphenol oxidase by 50% and Glutathione peroxidase by 37% compared to only salt stressed plants. Furthermore, 300 ppm CA application also promoted the content of primary metabolites such as total protein content by 75% and total free amino acids by 32% as well as improvement in secondary metabolites such as total phenols by 31% and flavonoids by 96% compared to only salt treated plants. Overall, the above described results suggested that the foliarly applied CA(200ppm) is a proficient approach which effectively counteract salt stress in brinjal by improving plant biomass, pigments, primary and secondary metabolites as well as modulating the the antioxidant defense system of the studied plant.

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

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Claims 20

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salt stress reduced brinjal growth and yield traits.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
Salt stresse0
Outcome
plant growth and yield attributese0
Direction
reducede0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Salt stress reduced plant growth and yield attributes, pigments as well as metabolites in plants.”

✓ located verbatim in the source · abstract, characters 457–554 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salt stress reduced pigments and metabolites.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
Salt stresse0
Outcome
pigments as well as metabolitese0
Direction
reducede0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Salt stress reduced plant growth and yield attributes, pigments as well as metabolites in plants.”

✓ located verbatim in the source · abstract, characters 457–554 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Salt stress increased antioxidant enzyme activity.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Outcome
Antioxidant enzyme activitiese0
Direction
increasede0
Comparator
non-stressed plantse0

Not reportedTreatment

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Antioxidant enzyme activities of the plant increased compared to the non-stressed plants.”

✓ located verbatim in the source · abstract, characters 555–644 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 ppm CA raised shoot fresh biomass by 75%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
300 ppm CAe0
Outcome
shoot and root fresh biomasse0
Direction
oenhancede0
Value
75%e0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“300 ppm CA concentrations oenhanced the shoot and root fresh biomass (75% and 71.8 %) and dry biomass (82.5% and 40.7%)”

✓ located verbatim in the source · abstract, characters 651–770 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 ppm CA raised root fresh biomass by 71.8%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
300 ppm CAe0
Outcome
root fresh biomasse0
Direction
oenhancede0
Value
71.8 %e0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“300 ppm CA concentrations oenhanced the shoot and root fresh biomass (75% and 71.8 %) and dry biomass (82.5% and 40.7%)”

✓ located verbatim in the source · abstract, characters 651–770 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 ppm CA raised shoot dry biomass by 82.5%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
300 ppm CAe0
Outcome
dry biomasse0
Direction
oenhancede0
Value
82.5%e0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“300 ppm CA concentrations oenhanced the shoot and root fresh biomass (75% and 71.8 %) and dry biomass (82.5% and 40.7%)”

✓ located verbatim in the source · abstract, characters 651–770 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 ppm CA raised root dry biomass by 40.7%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
300 ppm CAe0
Outcome
dry biomasse0
Direction
oenhancede0
Value
40.7%e0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“300 ppm CA concentrations oenhanced the shoot and root fresh biomass (75% and 71.8 %) and dry biomass (82.5% and 40.7%)”

✓ located verbatim in the source · abstract, characters 651–770 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

200 ppm CA increased fruit count by 50%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
200 ppm CA applicatione0
Outcome
fruits counte0
Direction
increasede0
Value
50%e0
Comparator
only salt-stressed plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“200 ppm CA application increased the fruits count by 50%, fruit diameter by 49% and leaf photosynthetic pigments by 61% compared to only salt-stressed plants.”

✓ located verbatim in the source · abstract, characters 778–936 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

200 ppm CA increased fruit diameter by 49%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
200 ppm CA applicatione0
Outcome
fruit diametere0
Direction
increasede0
Value
49%e0
Comparator
only salt-stressed plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“200 ppm CA application increased the fruits count by 50%, fruit diameter by 49% and leaf photosynthetic pigments by 61% compared to only salt-stressed plants.”

✓ located verbatim in the source · abstract, characters 778–936 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

200 ppm CA increased leaf photosynthetic pigments by 61%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
200 ppm CA applicatione0
Outcome
leaf photosynthetic pigmentse0
Direction
increasede0
Value
61%e0
Comparator
only salt-stressed plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“200 ppm CA application increased the fruits count by 50%, fruit diameter by 49% and leaf photosynthetic pigments by 61% compared to only salt-stressed plants.”

✓ located verbatim in the source · abstract, characters 778–936 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CA increased catalase by 42%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
CA applicatione0
Outcome
catalasee0
Direction
enhancede0
Value
42%e0
Comparator
only salt stressed plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“CA application enhanced the antioxidants both enzymatic and non-enzymatic such as catalase by 42%, peroxidase by 66%, superoxide dismutase by 44%, polyphenol oxidase by 50% and Glutathione peroxidase by 37% compared to only salt stressed plants.”

✓ located verbatim in the source · abstract, characters 948–1193 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CA increased peroxidase by 66%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
CA applicatione0
Outcome
peroxidasee0
Direction
enhancede0
Value
66%e0
Comparator
only salt stressed plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“CA application enhanced the antioxidants both enzymatic and non-enzymatic such as catalase by 42%, peroxidase by 66%, superoxide dismutase by 44%, polyphenol oxidase by 50% and Glutathione peroxidase by 37% compared to only salt stressed plants.”

✓ located verbatim in the source · abstract, characters 948–1193 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CA increased superoxide dismutase by 44%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
CA applicatione0
Outcome
superoxide dismutasee0
Direction
enhancede0
Value
44%e0
Comparator
only salt stressed plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“CA application enhanced the antioxidants both enzymatic and non-enzymatic such as catalase by 42%, peroxidase by 66%, superoxide dismutase by 44%, polyphenol oxidase by 50% and Glutathione peroxidase by 37% compared to only salt stressed plants.”

✓ located verbatim in the source · abstract, characters 948–1193 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CA increased polyphenol oxidase by 50%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
CA applicatione0
Outcome
polyphenol oxidasee0
Direction
enhancede0
Value
50%e0
Comparator
only salt stressed plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“CA application enhanced the antioxidants both enzymatic and non-enzymatic such as catalase by 42%, peroxidase by 66%, superoxide dismutase by 44%, polyphenol oxidase by 50% and Glutathione peroxidase by 37% compared to only salt stressed plants.”

✓ located verbatim in the source · abstract, characters 948–1193 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CA increased glutathione peroxidase by 37%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
CA applicatione0
Outcome
Glutathione peroxidasee0
Direction
enhancede0
Value
37%e0
Comparator
only salt stressed plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“CA application enhanced the antioxidants both enzymatic and non-enzymatic such as catalase by 42%, peroxidase by 66%, superoxide dismutase by 44%, polyphenol oxidase by 50% and Glutathione peroxidase by 37% compared to only salt stressed plants.”

✓ located verbatim in the source · abstract, characters 948–1193 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 ppm CA increased total protein content by 75%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
300 ppm CA applicatione0
Outcome
total protein contente0
Direction
promotede0
Value
75%e0
Comparator
only salt treated plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“300 ppm CA application also promoted the content of primary metabolites such as total protein content by 75% and total free amino acids by 32% as well as improvement in secondary metabolites such as total phenols by 31% and flavonoids by 96% compared to only salt treated plants.”

✓ located verbatim in the source · abstract, characters 1207–1486 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 ppm CA increased total free amino acids by 32%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
300 ppm CA applicatione0
Outcome
total free amino acidse0
Direction
promotede0
Value
32%e0
Comparator
only salt treated plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“300 ppm CA application also promoted the content of primary metabolites such as total protein content by 75% and total free amino acids by 32% as well as improvement in secondary metabolites such as total phenols by 31% and flavonoids by 96% compared to only salt treated plants.”

✓ located verbatim in the source · abstract, characters 1207–1486 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 ppm CA improved total phenols by 31%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
300 ppm CA applicatione0
Outcome
total phenolse0
Direction
improvemente0
Value
31%e0
Comparator
only salt treated plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“300 ppm CA application also promoted the content of primary metabolites such as total protein content by 75% and total free amino acids by 32% as well as improvement in secondary metabolites such as total phenols by 31% and flavonoids by 96% compared to only salt treated plants.”

✓ located verbatim in the source · abstract, characters 1207–1486 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 ppm CA improved flavonoids by 96%.

Taxon
brinjal (Solanum melongena L.)Solanum melongenat0
Treatment
300 ppm CA applicatione0
Outcome
flavonoidse0
Direction
improvemente0
Value
96%e0
Comparator
only salt treated plantse0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“300 ppm CA application also promoted the content of primary metabolites such as total protein content by 75% and total free amino acids by 32% as well as improvement in secondary metabolites such as total phenols by 31% and flavonoids by 96% compared to only salt treated plants.”

✓ located verbatim in the source · abstract, characters 1207–1486 · show in text ↑
t0

“brinjal (Solanum melongena L.)”

✓ located verbatim in the source · title, characters 105–135 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Authors recommend 200 ppm foliar CA to counter salt stress in brinjal.

Outcome
foliarly applied CA(200ppm)e0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“foliarly applied CA(200ppm) is a proficient approach which effectively counteract salt stress in brinjal”

✓ located verbatim in the source · abstract, characters 1543–1647 · show in text ↑

salinity · physiology: pigments · Solanum melongena (eggplant)Results differ

8 papers: 2 positive, 6 negative or no effect

5 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. no effect

4 papers more in this group

See all 8 papers →

salinity · yield · Solanum melongena (eggplant)Positive and negative results

9 papers: 1 positive, 8 negative or no effect

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

  1. positive
  2. negative
  3. no effect

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.