Paper · 2024 · International Journal of Molecular Sciences

Transcriptome Analysis Reveals the Mechanism by Which Exogenous Melatonin Treatment Delays Leaf Senescence of Postharvest Chinese Kale (Brassica oleracea var. alboglabra)

Hongmei Di; Chenlu Zhang; Aolian Zhou; et al.

9
claims
20
verbatim quotes
13
citations
4
research areas
✓
Open access · cc-by

Abstract

*, maintaining the content of chlorophyll and carotenoids, thereby delaying the yellowing and senescence of Chinese kale. Transcriptome analysis unequivocally validates melatonin's efficacy in delaying leaf senescence in postharvest Chinese kale stored at 20 °C. Following a three-day storage period, the melatonin treatment group exhibited 1637 differentially expressed genes (DEGs) compared to the control group. DEG analysis elucidated that melatonin-induced antisenescence primarily governs phenylpropanoid biosynthesis, lipid metabolism, plant signal transduction, and calcium signal transduction. Melatonin treatment up-regulated core enzyme genes associated with general phenylpropanoid biosynthesis, flavonoid biosynthesis, and the α-linolenic acid biosynthesis pathway. It influenced the redirection of lignin metabolic flux, suppressed jasmonic acid and abscisic acid signal transduction, and concurrently stimulated auxin signal transduction. Additionally, melatonin treatment down-regulated RBOH expression and up-regulated genes encoding CaM, thereby influencing calcium signal transduction. This study underscores melatonin as a promising approach for delaying leaf senescence and provides insights into the mechanism of melatonin-mediated antisenescence in postharvest Chinese kale.

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 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin maintained chlorophyll and carotenoids and delayed yellowing and senescence in Chinese kale.

Treatment
melatonine1
Outcome
content of chlorophyll and carotenoidse0
Direction
maintaininge0

Not reportedComparator

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“maintaining the content of chlorophyll and carotenoids, thereby delaying the yellowing and senescence of Chinese kale”

✓ located verbatim in the source · abstract, characters 3–120 · show in text ↑
e1

“melatonin treatment group”

✓ located verbatim in the source · abstract, characters 305–330 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

After three days of storage, melatonin-treated Chinese kale had 1637 differentially expressed genes relative to controls.

Treatment
melatonin treatmente0
Outcome
differentially expressed genes (DEGs)e0
Value
1637e0
Qualifier
Following a three-day storage periode0
Comparator
control groupe0

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Chinese Kale”

✓ located verbatim in the source · title, characters 122–134 · show in text ↑
e0

“Following a three-day storage period, the melatonin treatment group exhibited 1637 differentially expressed genes (DEGs) compared to the control group.”

✓ located verbatim in the source · abstract, characters 263–414 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Melatonin-related antisenescence involved phenylpropanoid biosynthesis, lipid metabolism, plant signal transduction, and calcium signal transduction.

Treatment
melatonine0
Outcome
antisenescencee0
Qualifier
phenylpropanoid biosynthesis, lipid metabolism, plant signal transduction, and calcium signal transductione0

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Chinese Kale”

✓ located verbatim in the source · title, characters 122–134 · show in text ↑
e0

“melatonin-induced antisenescence primarily governs phenylpropanoid biosynthesis, lipid metabolism, plant signal transduction, and calcium signal transduction”

✓ located verbatim in the source · abstract, characters 444–601 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin up-regulated core enzyme genes associated with general phenylpropanoid, flavonoid and α-linolenic acid biosynthesis.

Treatment
Melatonin treatmente0
Outcome
core enzyme genese0
Direction
up-regulatede0
Qualifier
general phenylpropanoid biosynthesis, flavonoid biosynthesis, and the α-linolenic acid biosynthesis pathwaye0

Not reportedComparator

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Chinese Kale”

✓ located verbatim in the source · title, characters 122–134 · show in text ↑
e0

“Melatonin treatment up-regulated core enzyme genes associated with general phenylpropanoid biosynthesis, flavonoid biosynthesis, and the α-linolenic acid biosynthesis pathway.”

✓ located verbatim in the source · abstract, characters 603–778 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Melatonin redirected lignin metabolic flux.

Treatment
melatonine1
Outcome
lignin metabolic fluxe0

Not reportedComparatorDirection

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Chinese Kale”

✓ located verbatim in the source · title, characters 122–134 · show in text ↑
e0

“It influenced the redirection of lignin metabolic flux”

✓ located verbatim in the source · abstract, characters 779–833 · show in text ↑
e1

“melatonin treatment group”

✓ located verbatim in the source · abstract, characters 305–330 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin suppressed jasmonic acid and abscisic acid signal transduction.

Treatment
melatonine1
Outcome
jasmonic acid and abscisic acid signal transductione0
Direction
suppressede0

Not reportedComparator

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Chinese Kale”

✓ located verbatim in the source · title, characters 122–134 · show in text ↑
e0

“suppressed jasmonic acid and abscisic acid signal transduction”

✓ located verbatim in the source · abstract, characters 835–897 · show in text ↑
e1

“melatonin treatment group”

✓ located verbatim in the source · abstract, characters 305–330 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin stimulated auxin signal transduction.

Treatment
Melatonin Treatmentt0
Outcome
auxin signal transductione0
Direction
stimulatede0

Not reportedComparator

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Melatonin Treatment Delays Leaf Senescence of Postharvest Chinese Kale”

✓ located verbatim in the source · title, characters 64–134 · show in text ↑
e0

“stimulated auxin signal transduction”

✓ located verbatim in the source · abstract, characters 916–952 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin down-regulated RBOH expression.

Treatment
melatonin treatmente0
Gene
RBOHe0
Outcome
RBOH expressione0
Direction
down-regulatede0

Not reportedComparator

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Melatonin Treatment Delays Leaf Senescence of Postharvest Chinese Kale”

✓ located verbatim in the source · title, characters 64–134 · show in text ↑
e0

“melatonin treatment down-regulated RBOH expression”

✓ located verbatim in the source · abstract, characters 968–1018 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melatonin up-regulated genes encoding CaM, influencing calcium signal transduction.

Treatment
Melatonin Treatmentt0
Gene
CaMe0
Outcome
genes encoding CaMe0
Direction
up-regulatede0

Not reportedComparator

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

Brassica oleracea var. alboglabra
Brassica oleracea var. alboglabra · TaxonKowloonese · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Melatonin Treatment Delays Leaf Senescence of Postharvest Chinese Kale”

✓ located verbatim in the source · title, characters 64–134 · show in text ↑
e0

“up-regulated genes encoding CaM, thereby influencing calcium signal transduction”

✓ located verbatim in the source · abstract, characters 1023–1103 · show in text ↑

melatonin · physiology: hormones · Brassica oleracea (wild cabbage)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
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melatonin · molecular: expression · Brassica oleracea (wild cabbage)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
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melatonin · physiology: pigments · Brassica oleracea (wild cabbage)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

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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.