Paper · 2025 · Biology

Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress

Xue Li; Jia Liu; Cuiping Zhang; et al.

7
claims
7
verbatim quotes
12
citations
2
research areas
✓
Open access · cc-by

Abstract

Drought stress constitutes a major challenge to wheat production. Melatonin plays a vital role in plants' resistance to drought stress. Nevertheless, the influence of melatonin seed coating on the drought resistance ability of wheat remains unclear. Hence, in this study, wheat (Yunmai 112) was chosen as the experimental material. The research results indicated that 100 µM exogenous melatonin treatment enhanced the germination rate of wheat seeds by 11% compared to the CK group. Melatonin seed coating (100 or 200 µM) significantly inhibited the accumulation of ROS in wheat seedlings under drought stress conditions and facilitated the growth of wheat seedlings. Then, 100 µM melatonin seed coating elevated the activity of antioxidant enzymes (CAT, Cu/Zn-SOD, POD, and T-GSH) in wheat seedlings and strengthened the resistance of wheat to drought stress. In contrast to the control, 100 or 200 µM melatonin seed coating significantly raised the contents of soluble protein and chlorophyll in wheat seedlings. Further studies demonstrated that 100 µM melatonin seed coating promoted the increase in the thousand-grain weight and yield of wheat under drought stress. Taking together, melatonin seed coating is an effective approach for enhancing the stress resistance and the yield of wheat under drought stress.

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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

100 µM melatonin increased seed germination rate by 11% against CK.

Treatment
100 µM exogenous melatonin treatmente0
Outcome
germination ratee0
Direction
enhancede0
Value
11%e0
Comparator
CK groupe0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100 µM exogenous melatonin treatment enhanced the germination rate of wheat seeds by 11% compared to the CK group”

✓ located verbatim in the source · abstract, characters 368–481 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 or 200 µM melatonin seed coating significantly inhibited seedling ROS accumulation under drought.

Treatment
Melatonin seed coating (100 or 200 µM)e0
Outcome
accumulation of ROSe0
Direction
inhibitede0
Qualifier
under drought stress conditionse0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Melatonin seed coating (100 or 200 µM) significantly inhibited the accumulation of ROS in wheat seedlings under drought stress conditions”

✓ located verbatim in the source · abstract, characters 483–620 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin seed coating facilitated seedling growth.

Treatment
Melatonin seed coating (100 or 200 µM)e0
Outcome
growth of wheat seedlingse0
Direction
facilitatede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Melatonin seed coating (100 or 200 µM) significantly inhibited the accumulation of ROS in wheat seedlings under drought stress conditions and facilitated the growth of wheat seedlings.”

✓ located verbatim in the source · abstract, characters 483–667 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

100 µM coating raised CAT, Cu/Zn-SOD and POD activities.

Treatment
100 µM melatonin seed coatinge0
Gene
CAT, Cu/Zn-SOD, PODe0
Outcome
activity of antioxidant enzymese0
Direction
elevatede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100 µM melatonin seed coating elevated the activity of antioxidant enzymes (CAT, Cu/Zn-SOD, POD, and T-GSH) in wheat seedlings”

✓ located verbatim in the source · abstract, characters 674–800 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

100 µM coating raised T-GSH activity.

Treatment
100 µM melatonin seed coatinge0
Gene
T-GSHe0
Outcome
activity of antioxidant enzymese0
Direction
elevatede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100 µM melatonin seed coating elevated the activity of antioxidant enzymes (CAT, Cu/Zn-SOD, POD, and T-GSH) in wheat seedlings”

✓ located verbatim in the source · abstract, characters 674–800 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 or 200 µM coating significantly raised soluble protein and chlorophyll contents.

Treatment
100 or 200 µM melatonin seed coatinge0
Outcome
contents of soluble protein and chlorophylle0
Direction
raisede0
Comparator
the controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In contrast to the control, 100 or 200 µM melatonin seed coating significantly raised the contents of soluble protein and chlorophyll in wheat seedlings.”

✓ located verbatim in the source · abstract, characters 861–1014 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

100 µM coating increased wheat thousand grain weight and yield under drought.

Treatment
100 µM melatonin seed coatinge0
Outcome
thousand-grain weight and yielde0
Direction
increasee0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100 µM melatonin seed coating promoted the increase in the thousand-grain weight and yield of wheat under drought stress”

✓ located verbatim in the source · abstract, characters 1049–1169 · show in text ↑

melatonin · yield · Triticum aestivum (wheat)Results differ

16 papers: 15 positive, 1 negative or no effect

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

  1. positive
  2. negative
  3. positive

12 papers more in this group

See all 16 papers →

melatonin · physiology: pigments · Triticum aestivum (wheat)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

melatonin · growth · Triticum aestivum (wheat)Results agree

21 papers: 21 positive, 0 negative or no effect

20 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

17 papers more in this group

See all 21 papers →

melatonin · physiology: antioxidant enzymes · Triticum aestivum (wheat)Results agree

21 papers: 21 positive, 0 negative or no effect

20 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

17 papers more in this group

See all 21 papers →

melatonin · physiology: oxidative · Triticum aestivum (wheat)Results agree

23 papers: 23 positive, 0 negative or no effect

22 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

19 papers more in this group

See all 23 papers →

seed treatment · physiology: pigments · Triticum aestivum (wheat)Positive and negative results

44 papers: 42 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

40 papers more in this group

See all 44 papers →

seed treatment · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results

48 papers: 46 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

44 papers more in this group

See all 48 papers →

seed treatment · growth · Triticum aestivum (wheat)Positive and negative results

293 papers: 259 positive, 34 negative or no effect

258 papers in the same direction as this paper · 31 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

289 papers more in this group

See all 293 papers →

8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.