Paper · 2024 · Frontiers in Plant Science

Unveiling the protective role of anthocyanin in rice: insights into drought-induced oxidative stress and metabolic regulation

Rahmatullah Jan; Saleem Asif; Sajjad Asaf; et al.

9
claims
16
verbatim quotes
33
citations
3
research areas
✓
Open access · cc-by

Abstract

This study investigates the impact of anthocyanin treatment on rice plants under drought stress, focusing on phenotypic, molecular, and biochemical responses. Anthocyanin were treated to one month old plants one week before the droughtexposure. Drought stress was imposed by using 10% polyethylene glycol (PEG 6000). Anthocyanin-treated plants exhibited significant enhancements in various traits, including growth parameters and reproductive characteristics, under normal conditions. When subjected to drought stress, these plants displayed resilience, maintaining or improving essential morphological and physiological features compared to non-treated counterparts. Notably, anthocyanin application mitigated drought-induced oxidative stress, as evidenced by reduced levels of reactive oxygen species (ROS) and lipid membrane peroxidation. The study also elucidates the regulatory role of anthocyanins in the expression of flavonoid biosynthetic genes, leading to increased levels of key secondary metabolites. Furthermore, anthocyanin treatment influenced the levels of stress-related signaling molecules, including melatonin, proline, abscisic acid (ABA), and salicylic acid (SA), contributing to enhanced stress tolerance. The enzymatic activity of antioxidants and the expression of drought-responsive genes were modulated by anthocyanins, emphasizing their role in antioxidant defense and stress response. Additionally, anthocyanin treatment positively influenced macronutrient concentrations, particularly calcium ion (Ca + ), potassium ion (K + ), and sodium ion (Na + ), essential for cell wall and membrane stability. The findings collectively highlight the multifaceted protective effects of anthocyanins, positioning them as potential key players in conferring resilience to drought stress in rice plants. The study provides valuable insights into the molecular and physiological mechanisms underlying anthocyanin-mediated enhancement of drought stress tolerance, suggesting promising applications in agricultural practices for sustainable crop production.

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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

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Anthocyanin enhanced growth and reproductive traits under normal conditions.

Taxon
plantsViridiplantaee0
Treatment
Anthocyanine0
Outcome
growth parameters and reproductive characteristicse0
Direction
enhancementse0
Qualifier
under normal conditionse0

Not reportedComparator

Verbatim

e0

“Anthocyanin-treated plants exhibited significant enhancements in various traits, including growth parameters and reproductive characteristics, under normal conditions.”

✓ located verbatim in the source · abstract, characters 317–484 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anthocyanin-treated plants maintained or improved morphological and physiological features during drought.

Taxon
plantsViridiplantaee0
Treatment
drought stresse0
Outcome
essential morphological and physiological featurese0
Direction
maintaining or improvinge0
Comparator
non-treated counterpartse0

Verbatim

e0

“When subjected to drought stress, these plants displayed resilience, maintaining or improving essential morphological and physiological features compared to non-treated counterparts.”

✓ located verbatim in the source · abstract, characters 485–667 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anthocyanin reduced reactive oxygen species and membrane lipid peroxidation during drought.

Treatment
anthocyanin applicatione0
Outcome
reactive oxygen species (ROS) and lipid membrane peroxidatione0
Direction
reducede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“anthocyanin application mitigated drought-induced oxidative stress, as evidenced by reduced levels of reactive oxygen species (ROS) and lipid membrane peroxidation.”

✓ located verbatim in the source · abstract, characters 677–841 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 48–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anthocyanins regulated flavonoid biosynthetic gene expression.

Treatment
anthocyaninse0
Outcome
expression of flavonoid biosynthetic genese0

Not reportedComparatorDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“the regulatory role of anthocyanins in the expression of flavonoid biosynthetic genes”

✓ located verbatim in the source · abstract, characters 868–953 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 48–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anthocyanins increased key secondary metabolites.

Treatment
anthocyaninse0
Outcome
key secondary metabolitese0
Direction
increasede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“anthocyanins in the expression of flavonoid biosynthetic genes, leading to increased levels of key secondary metabolites”

✓ located verbatim in the source · abstract, characters 891–1011 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 48–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anthocyanin altered levels of melatonin, proline, abscisic acid and salicylic acid.

Treatment
anthocyanin treatmente0
Outcome
levels of stress-related signaling molecules, including melatonin, proline, abscisic acid (ABA), and salicylic acid (SA)e0

Not reportedComparatorDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“anthocyanin treatment influenced the levels of stress-related signaling molecules, including melatonin, proline, abscisic acid (ABA), and salicylic acid (SA)”

✓ located verbatim in the source · abstract, characters 1026–1183 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 48–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anthocyanin modulated antioxidant enzyme activity.

Treatment
anthocyaninse0
Outcome
enzymatic activity of antioxidantse0

Not reportedComparatorDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The enzymatic activity of antioxidants and the expression of drought-responsive genes were modulated by anthocyanins”

✓ located verbatim in the source · abstract, characters 1228–1344 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 48–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anthocyanin modulated drought-responsive gene expression.

Treatment
anthocyaninse0
Outcome
expression of drought-responsive genese0

Not reportedComparatorDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The enzymatic activity of antioxidants and the expression of drought-responsive genes were modulated by anthocyanins”

✓ located verbatim in the source · abstract, characters 1228–1344 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 48–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anthocyanin positively influenced calcium, potassium and sodium ion concentrations.

Treatment
anthocyanin treatmente0
Outcome
macronutrient concentrations, particularly calcium ion (Ca + ), potassium ion (K + ), and sodium ion (Na + )e0
Direction
positively influencede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“anthocyanin treatment positively influenced macronutrient concentrations, particularly calcium ion (Ca + ), potassium ion (K + ), and sodium ion (Na + )”

✓ located verbatim in the source · abstract, characters 1427–1579 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 48–52 · show in text ↑

anthocyanin · physiology: oxidative · Oryza sativa (rice)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 →

anthocyanin · quality: phytochemicals · Oryza sativa (rice)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 →

anthocyanin · nutrient: content · Oryza sativa (rice)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.