Paper · 2023 · Plant Stress

Effects of melatonin foliar application on hot pepper growth and stress tolerance

Saeed Khosravi; Maryam Haghighi; Javad Mottaghipisheh

6
claims
11
verbatim quotes
26
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Drought and waterlogging are one of the most severe abiotic stresses towards plant growth and development. The experiment was implemented in the Isfahan University of Technology's research greenhouse to examine the effect of melatonin foliar spraying in hot pepper plants under waterlogging and drought stresses. This factorial experiment was performed as a complete randomized design (CRD) in triplicate. The treatments included controls, waterlogging, drought stress, and melatonin foliar spraying at 0 and 500 µM concentrations. The results demonstrated that the foliar melatonin spraying was more advantageous under drought and waterlogging stress conditions via increasing ammonium content, NR (nitrate reductase activity), chlorophyll content, proline, protein, transpiration, shoot length, root water content, amino acid alterations, and PIP gene expression. Melatonin influenced the hot pepper's growth by affecting enzyme activity NR hormonal changes (ABA), amino acid changes, and PIP gene expression.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin increased ammonium content, nitrate reductase activity and chlorophyll content under stress.

Taxon
hot pepperCapsicum frutescenst0
Treatment
foliar melatonin sprayinge0
Outcome
ammonium content, NR (nitrate reductase activity), chlorophyll contente0
Direction
increasinge0
Qualifier
drought and waterlogging stress conditionse0

Not reportedComparator

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

Capsicum frutescens
Capsicum frutescens · TaxonThe original uploader was Matthäus Wander at German Wikipedia . · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The results demonstrated that the foliar melatonin spraying was more advantageous under drought and waterlogging stress conditions via increasing ammonium content, NR (nitrate reductase activity), chlorophyll content, proline, protein, transpiration, shoot length, root water content, amino acid alterations, and PIP gene expression.”

✓ located verbatim in the source · abstract, characters 532–865 · show in text ↑
t0

“hot pepper”

✓ located verbatim in the source · title, characters 43–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin increased proline, protein and transpiration under stress.

Taxon
hot pepperCapsicum frutescenst0
Treatment
foliar melatonin sprayinge0
Outcome
proline, protein, transpiratione0
Direction
increasinge0
Qualifier
drought and waterlogging stress conditionse0

Not reportedComparator

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

Capsicum frutescens
Capsicum frutescens · TaxonThe original uploader was Matthäus Wander at German Wikipedia . · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The results demonstrated that the foliar melatonin spraying was more advantageous under drought and waterlogging stress conditions via increasing ammonium content, NR (nitrate reductase activity), chlorophyll content, proline, protein, transpiration, shoot length, root water content, amino acid alterations, and PIP gene expression.”

✓ located verbatim in the source · abstract, characters 532–865 · show in text ↑
t0

“hot pepper”

✓ located verbatim in the source · title, characters 43–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin increased shoot length and root water content under stress.

Taxon
hot pepperCapsicum frutescenst0
Treatment
foliar melatonin sprayinge0
Outcome
shoot length, root water contente0
Direction
increasinge0
Qualifier
drought and waterlogging stress conditionse0

Not reportedComparator

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

Capsicum frutescens
Capsicum frutescens · TaxonThe original uploader was Matthäus Wander at German Wikipedia . · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The results demonstrated that the foliar melatonin spraying was more advantageous under drought and waterlogging stress conditions via increasing ammonium content, NR (nitrate reductase activity), chlorophyll content, proline, protein, transpiration, shoot length, root water content, amino acid alterations, and PIP gene expression.”

✓ located verbatim in the source · abstract, characters 532–865 · show in text ↑
t0

“hot pepper”

✓ located verbatim in the source · title, characters 43–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin increased PIP gene expression under stress.

Taxon
hot pepperCapsicum frutescenst0
Treatment
foliar melatonin sprayinge0
Gene
PIPe0
Outcome
PIP gene expressione0
Direction
increasinge0
Qualifier
drought and waterlogging stress conditionse0

Not reportedComparator

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

Capsicum frutescens
Capsicum frutescens · TaxonThe original uploader was Matthäus Wander at German Wikipedia . · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The results demonstrated that the foliar melatonin spraying was more advantageous under drought and waterlogging stress conditions via increasing ammonium content, NR (nitrate reductase activity), chlorophyll content, proline, protein, transpiration, shoot length, root water content, amino acid alterations, and PIP gene expression.”

✓ located verbatim in the source · abstract, characters 532–865 · show in text ↑
t0

“hot pepper”

✓ located verbatim in the source · title, characters 43–53 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Melatonin altered amino acids under stress.

Taxon
hot pepperCapsicum frutescenst0
Treatment
foliar melatonin sprayinge0
Outcome
amino acid alterationse0
Qualifier
drought and waterlogging stress conditionse0

Not reportedComparatorDirection

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

Capsicum frutescens
Capsicum frutescens · TaxonThe original uploader was Matthäus Wander at German Wikipedia . · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The results demonstrated that the foliar melatonin spraying was more advantageous under drought and waterlogging stress conditions via increasing ammonium content, NR (nitrate reductase activity), chlorophyll content, proline, protein, transpiration, shoot length, root water content, amino acid alterations, and PIP gene expression.”

✓ located verbatim in the source · abstract, characters 532–865 · show in text ↑
t0

“hot pepper”

✓ located verbatim in the source · title, characters 43–53 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Melatonin affected pepper growth through NR activity, ABA, amino acids and PIP expression.

Taxon
hot pepperCapsicum frutescense0
Treatment
Melatonine0
Gene
PIPe0
Compound
ABAe0
Outcome
growthe0
Qualifier
enzyme activity NR hormonal changes (ABA), amino acid changes, and PIP gene expressione0

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

Capsicum frutescens
Capsicum frutescens · TaxonThe original uploader was Matthäus Wander at German Wikipedia . · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Melatonin influenced the hot pepper's growth by affecting enzyme activity NR hormonal changes (ABA), amino acid changes, and PIP gene expression.”

✓ located verbatim in the source · abstract, characters 866–1011 · show in text ↑

melatonin · growth · Capsicum frutescens (hot pepper)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 →

melatonin · physiology: pigments · Capsicum frutescens (hot pepper)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 →

application · growth · Capsicum frutescens (hot pepper)Positive and negative results

11 papers: 8 positive, 3 negative or no effect

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

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

7 papers more in this group

See all 11 papers →

application · physiology: pigments · Capsicum frutescens (hot pepper)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 →

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.