Paper · 2026 · Russian Journal of Plant Physiology

ROS Burst and Enhanced α-Amylase Activity Promoted Germination in Radish Seeds Nanoprimed with MgO-NPs

S. Chopra; V. Kumar; P. Guleria

10
claims
25
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Abstract Seed germination marks the transition of dormancy to active plant growth. Accumulation of reactive oxygen species (ROS) is critical for seed coat rupture to facilitate the radicle emergence. The seed priming with nanoparticles (NPs) can be a promising avenue to improve seedling vigor, stress mitigation, and overall crop yield. Previous studies have shown that MgO-NPs exposure for more than 16 h can influence plant growth and development. However, there is a limited literature describing the role of NPs during the germination process. Therefore, in the present study the effect of short-term MgO-NPs priming on radish (Raphanus sativus (L.) Domin) seed germination was evaluated. Radish seeds were primed for 2 h with four different MgO-NPs concentrations, 10, 150, 250, and 500 µg/mL, before transferring to growth chambers for germination. Seeds were collected intermittently during germination, and results showed that 2 h MgO-NPs nanopriming enhanced germination than the untreated control. The order of germination time was observed as: 8 hap (h after priming) N-500 > 9 hap N-250 > 9.5 hap N-150 = 9.5 hap N10 > 10 hap control. Biochemical analysis revealed that 500 µg/mL MgO-NPs induced a significant ROS burst at 8 hap with simultaneous reduction in the antioxidant potential. The ROS upsurge facilitated seed coat rupture and radicle emergence. In addition, MgO-NPs enhanced α-amylase activity, leading to higher carbohydrate and protein content to fuel seed germination. Increased salicylic acid levels and reduced auxin content further supported accelerated seed germination in MgO-NPs nanorpimed radish seed than the control. In conclusion, the present study demonstrates that time-bound nanopriming with MgO-NPs can influence germination via ROS singaling and regulation of key biochemical events. Further research on exposure durations beyond 2 h may help in identification of an effective MgO-NPs concentration for improved growth and yield in radish. Moreover, extending such studies in other plant species could establish MgO-NPs as sustainable growth-promoting alternative agriculture.

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Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Two-hour MgO-NP nanopriming enhanced radish seed germination relative to the untreated control.

Treatment
MgO-NPs nanopriminge0
Outcome
germinatione0
Direction
enhancede0
Comparator
untreated controle0

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“2 h MgO-NPs nanopriming enhanced germination than the untreated control”

✓ located verbatim in the source · abstract, characters 936–1007 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Germination time was shortest with 500 ug/mL MgO-NPs (8 h after priming) and lengthened at lower concentrations, control 10 h.

Treatment
MgO-NPs concentrationse1
Outcome
germination timee0
Direction
decreaseinferrede0
Value
8 hap (h after priming) N-500 > 9 hap N-250 > 9.5 hap N-150 = 9.5 hap N10 > 10 hap controle0
Comparator
controle0

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“The order of germination time was observed as: 8 hap (h after priming) N-500 > 9 hap N-250 > 9.5 hap N-150 = 9.5 hap N10 > 10 hap control”

✓ located verbatim in the source · abstract, characters 1009–1146 · show in text ↑
e1

“four different MgO-NPs concentrations”

✓ located verbatim in the source · abstract, characters 732–769 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Priming with 500 ug/mL MgO-NPs induced a significant ROS burst at 8 h after priming.

Treatment
500 µg/mL MgO-NPse0
Outcome
ROS burste0
Direction
inducede0
Qualifier
at 8 hape0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“500 µg/mL MgO-NPs induced a significant ROS burst at 8 hap”

✓ located verbatim in the source · abstract, characters 1183–1241 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Priming with 500 ug/mL MgO-NPs simultaneously reduced the antioxidant potential.

Treatment
500 µg/mL MgO-NPse1
Outcome
antioxidant potentiale0
Direction
reductione0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“simultaneous reduction in the antioxidant potential”

✓ located verbatim in the source · abstract, characters 1247–1298 · show in text ↑
e1

“500 µg/mL MgO-NPs induced a significant ROS burst at 8 hap”

✓ located verbatim in the source · abstract, characters 1183–1241 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The ROS upsurge facilitated seed coat rupture and radicle emergence.

Compound
ROSe0
Outcome
seed coat rupture and radicle emergencee0

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“The ROS upsurge facilitated seed coat rupture and radicle emergence”

✓ located verbatim in the source · abstract, characters 1300–1367 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

MgO-NPs enhanced alpha-amylase activity in primed radish seeds.

Treatment
MgO-NPse0
Outcome
α-amylase activitye0
Direction
enhancede0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“MgO-NPs enhanced α-amylase activity”

✓ located verbatim in the source · abstract, characters 1382–1417 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

MgO-NPs led to higher carbohydrate and protein content to fuel seed germination.

Treatment
MgO-NPse1
Outcome
carbohydrate and protein contente0
Direction
highere0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“leading to higher carbohydrate and protein content”

✓ located verbatim in the source · abstract, characters 1419–1469 · show in text ↑
e1

“MgO-NPs enhanced α-amylase activity”

✓ located verbatim in the source · abstract, characters 1382–1417 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

MgO-NP nanopriming increased salicylic acid levels in radish seeds relative to the control.

Treatment
MgO-NPs nanorpimede1
Outcome
salicylic acid levelse0
Direction
Increasede0
Comparator
the controle1

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“Increased salicylic acid levels”

✓ located verbatim in the source · abstract, characters 1496–1527 · show in text ↑
e1

“MgO-NPs nanorpimed radish seed than the control”

✓ located verbatim in the source · abstract, characters 1604–1651 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

MgO-NP nanopriming reduced auxin content in radish seeds relative to the control.

Treatment
MgO-NPs nanorpimede1
Outcome
auxin contente0
Direction
reducede0
Comparator
the controle1

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“reduced auxin content”

✓ located verbatim in the source · abstract, characters 1532–1553 · show in text ↑
e1

“MgO-NPs nanorpimed radish seed than the control”

✓ located verbatim in the source · abstract, characters 1604–1651 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors conclude that time-bound nanopriming with MgO-NPs can influence germination via ROS signalling and regulation of key biochemical events.

Treatment
nanopriming with MgO-NPse0
Outcome
germinatione0
Qualifier
via ROS singaling and regulation of key biochemical eventse0

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Radish Seeds”

✓ located verbatim in the source · title, characters 66–78 · show in text ↑
e0

“time-bound nanopriming with MgO-NPs can influence germination via ROS singaling and regulation of key biochemical events”

✓ located verbatim in the source · abstract, characters 1704–1824 · show in text ↑

nanoparticle · growth · Raphanus sativus (radish)Positive and negative results

19 papers: 16 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. negative

15 papers more in this group

See all 19 papers →

nanoparticle · quality: protein · Raphanus sativus (radish)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.