Paper · 2024 · Plant Signaling & Behavior

Exogenous melatonin delays leaves senescence and enhances saline and alkaline stress tolerance in grape seedlings

Zhongyi Yang; Xixi Yang; Shimei Wei; et al.

7
claims
9
verbatim quotes
6
citations
2
research areas
✓
Open access

Abstract

L.) under saline and alkaline stress. The results showed that saline and alkaline stress resulted in yellowing and wilting of grape leaves and a decrease in chlorophyll content, whereas the application of exogenous MT alleviated the degradation of chlorophyll in grape seedling leaves caused by saline and alkaline stress and promoted the accumulation of soluble sugars and proline content. In addition, exogenous MT increased the activity of antioxidant enzymes, which resulted in the scavenging of reactive oxygen species (ROS) generated by saline and alkaline stress. In conclusion, exogenous MT was involved in the tolerance of grape seedlings to saline and alkaline stress, and enhanced the saline and alkaline resistance of grape seedlings to promote the growth and development of the grape industry in saline and alkaline areas.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 resultnegativemeasured

Claim · model-written summary

Saline and alkaline stress caused yellowing and wilting of grape leaves.

Taxon
grapee0
Organ / stage
leavese0
Treatment
saline and alkaline stresse0
Outcome
yellowing and wiltinge0

Not reportedComparatorDirection

Verbatim

e0

“saline and alkaline stress resulted in yellowing and wilting of grape leaves and a decrease in chlorophyll content”

✓ located verbatim in the source · abstract, characters 62–176 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Saline and alkaline stress decreased grape chlorophyll content.

Taxon
grapee0
Treatment
saline and alkaline stresse0
Outcome
chlorophyll contente0
Direction
decreasee0

Not reportedComparator

Verbatim

e0

“saline and alkaline stress resulted in yellowing and wilting of grape leaves and a decrease in chlorophyll content”

✓ located verbatim in the source · abstract, characters 62–176 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous MT alleviated chlorophyll degradation under saline and alkaline stress.

Taxon
grapee0
Organ / stage
seedling leavese0
Treatment
application of exogenous MTe0
Outcome
degradation of chlorophylle0
Direction
alleviatede0
Qualifier
saline and alkaline stresse0

Not reportedComparator

Verbatim

e0

“the application of exogenous MT alleviated the degradation of chlorophyll in grape seedling leaves caused by saline and alkaline stress”

✓ located verbatim in the source · abstract, characters 186–321 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous MT promoted accumulation of soluble sugars and proline under stress.

Taxon
grapee0
Treatment
application of exogenous MTe0
Outcome
accumulation of soluble sugars and proline contente0
Direction
promotede0
Qualifier
saline and alkaline stresse0

Not reportedComparator

Verbatim

e0

“the application of exogenous MT alleviated the degradation of chlorophyll in grape seedling leaves caused by saline and alkaline stress and promoted the accumulation of soluble sugars and proline content.”

✓ located verbatim in the source · abstract, characters 186–390 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous MT increased antioxidant enzyme activity.

Taxon
grapet0
Treatment
exogenous MTe0
Outcome
activity of antioxidant enzymese0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“exogenous MT increased the activity of antioxidant enzymes”

✓ located verbatim in the source · abstract, characters 404–462 · show in text ↑
t0

“grape seedlings”

✓ located verbatim in the source · title, characters 98–113 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Increased antioxidant enzyme activity resulted in scavenging stress-generated ROS.

Taxon
grapet0
Treatment
exogenous MTe0
Outcome
scavenging of reactive oxygen species (ROS)e0
Qualifier
increased the activity of antioxidant enzymese0

Verbatim

e0

“exogenous MT increased the activity of antioxidant enzymes, which resulted in the scavenging of reactive oxygen species (ROS) generated by saline and alkaline stress.”

✓ located verbatim in the source · abstract, characters 404–570 · show in text ↑
t0

“grape seedlings”

✓ located verbatim in the source · title, characters 98–113 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Exogenous MT enhanced grape seedlings' saline and alkaline resistance.

Taxon
grapee0
Treatment
exogenous MTe0
Outcome
saline and alkaline resistancee0
Direction
enhancede0

Not reportedComparator

Verbatim

e0

“exogenous MT was involved in the tolerance of grape seedlings to saline and alkaline stress, and enhanced the saline and alkaline resistance of grape seedlings”

✓ located verbatim in the source · abstract, characters 586–745 · show in text ↑

alkalinity · disease · VitisPositive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

salinity · disease · VitisPositive and negative results

5 papers: 2 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. negative

1 paper more in this group

See all 5 papers →

salinity · physiology: pigments · VitisPositive and negative results

5 papers: 1 positive, 4 negative or no effect

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

  1. positive
  2. negative
  3. negative

1 paper more in this group

See all 5 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.