Paper · 2026 · Molecules

Metabolomic Profiling of Seasonal Katsumadin Production in Ternstroemia lineata

Alexis Uriel Soto-Díaz; María Luisa Villarreal; Nahim Salgado Medrano; et al.

9
claims
20
verbatim quotes
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citations
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Open access · cc-by

Abstract

Metabolomic profiling of the leaves, floral buds, flowers, and fruits of Ternstroemia lineata was conducted across the dry and rainy seasons in Mexico. The presence of katsumadin was determined and its antibacterial activity was evaluated. Multivariate data analysis was performed using proton nuclear magnetic resonance (1H NMR) and Principal Component Analysis (PCA). Katsumadin was identified by 1H NMR and, quantified by HPLC, and its antibacterial activity was assessed using a microdilution assay. The results revealed conserved 1H NMR signals among leaf, flower buds, flowers and fruits, as well as signals that were either organ-specific or time-dependent. The spatial and temporal distribution of katsumadin was monitored over a nine-month period. During the dry season, katsumadin reached 1.5 mg/g DW in the leaves, whereas it was not detected during the rainy season. Higher katsumadin contents were observed in floral buds, fruits, and flowers (6.09 ± 0.10, 3.0 ± 0.79, and 3.4 ± 0.42 mg/g DW, respectively). In addition, katsumadin was evaluated against Salmonella Typhi and Pseudomonas aeruginosa, exhibiting a minimum inhibitory concentration and bactericidal effect at 0.5 mg/mL.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 9

Observationobservedoriginal resultmeasured

Claim · model-written summary

Katsumadin reached 1.5 mg/g DW in leaves during the dry season.

Taxon
Ternstroemia lineataTernstroemia lineatat0
Organ / stage
leavese1
Outcome
katsumadine1
Value
1.5 mg/g DWe1
Setting
dry seasone1

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e1

“During the dry season, katsumadin reached 1.5 mg/g DW in the leaves”

✓ located verbatim in the source · abstract, characters 757–824 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Katsumadin was not detected in the rainy season.

Taxon
Ternstroemia lineataTernstroemia lineatat0
Outcome
katsumadine1
Qualifier
not detectede2
Setting
rainy seasone2

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e1

“During the dry season, katsumadin reached 1.5 mg/g DW in the leaves”

✓ located verbatim in the source · abstract, characters 757–824 · show in text ↑
e2

“whereas it was not detected during the rainy season”

✓ located verbatim in the source · abstract, characters 826–877 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Floral buds had higher katsumadin contents (6.09 ± 0.10 mg/g DW).

Taxon
Ternstroemia lineataTernstroemia lineatat0
Organ / stage
floral budse3
Outcome
katsumadin contentse3
Direction
Highere3
Value
6.09 ± 0.10e3
Qualifier
mg/g DWe3

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e3

“Higher katsumadin contents were observed in floral buds, fruits, and flowers (6.09 ± 0.10, 3.0 ± 0.79, and 3.4 ± 0.42 mg/g DW, respectively)”

✓ located verbatim in the source · abstract, characters 879–1019 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Fruits had higher katsumadin contents (3.0 ± 0.79 mg/g DW).

Taxon
Ternstroemia lineataTernstroemia lineatat0
Organ / stage
fruitse3
Outcome
katsumadin contentse3
Direction
Highere3
Value
3.0 ± 0.79e3
Qualifier
mg/g DWe3

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e3

“Higher katsumadin contents were observed in floral buds, fruits, and flowers (6.09 ± 0.10, 3.0 ± 0.79, and 3.4 ± 0.42 mg/g DW, respectively)”

✓ located verbatim in the source · abstract, characters 879–1019 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Flowers had higher katsumadin contents (3.4 ± 0.42 mg/g DW).

Taxon
Ternstroemia lineataTernstroemia lineatat0
Organ / stage
flowerse3
Outcome
katsumadin contentse3
Direction
Highere3
Value
3.4 ± 0.42e3
Qualifier
mg/g DWe3

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e3

“Higher katsumadin contents were observed in floral buds, fruits, and flowers (6.09 ± 0.10, 3.0 ± 0.79, and 3.4 ± 0.42 mg/g DW, respectively)”

✓ located verbatim in the source · abstract, characters 879–1019 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

1H NMR signals were conserved among leaves, flower buds, flowers and fruits.

Taxon
Ternstroemia lineataTernstroemia lineatat0
Organ / stage
leaf, flower buds, flowers and fruitse4
Outcome
1H NMR signalse4
Qualifier
conservede4

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e4

“The results revealed conserved 1H NMR signals among leaf, flower buds, flowers and fruits”

✓ located verbatim in the source · abstract, characters 504–593 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

1H NMR signals were either organ-specific or time-dependent.

Taxon
Ternstroemia lineataTernstroemia lineatat0
Outcome
1H NMR signalse4
Qualifier
organ-specific or time-dependente5

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e4

“The results revealed conserved 1H NMR signals among leaf, flower buds, flowers and fruits”

✓ located verbatim in the source · abstract, characters 504–593 · show in text ↑
e5

“as well as signals that were either organ-specific or time-dependent”

✓ located verbatim in the source · abstract, characters 595–663 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Katsumadin showed a minimum inhibitory concentration and bactericidal effect against Salmonella Typhi at 0.5 mg/mL.

Taxon
Ternstroemia lineataTernstroemia lineatat0
Interactor
Salmonella TyphiSalmonella enterica subsp. enterica serovar Typhie6pathogen
Compound
katsumadine6
Outcome
minimum inhibitory concentration and bactericidal effecte6
Value
0.5 mg/mLe6

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗
Salmonella enterica subsp. enterica serovar Typhi
Salmonella enterica subsp. enterica serovar Typhi · Interactor · picture of the speciesCenters for Disease Control and Prevention · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e6

“katsumadin was evaluated against Salmonella Typhi and Pseudomonas aeruginosa, exhibiting a minimum inhibitory concentration and bactericidal effect at 0.5 mg/mL”

✓ located verbatim in the source · abstract, characters 1034–1194 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Katsumadin showed a minimum inhibitory concentration and bactericidal effect against Pseudomonas aeruginosa at 0.5 mg/mL.

Taxon
Ternstroemia lineataTernstroemia lineatat0
Interactor
Pseudomonas aeruginosaPseudomonas aeruginosae6pathogen
Compound
katsumadine6
Outcome
minimum inhibitory concentration and bactericidal effecte6
Value
0.5 mg/mLe6

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

Ternstroemia lineata
Ternstroemia lineata · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗
Pseudomonas aeruginosa
Pseudomonas aeruginosa · InteractorCDC · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Ternstroemia lineata”

✓ located verbatim in the source · title, characters 59–79 · show in text ↑
e6

“katsumadin was evaluated against Salmonella Typhi and Pseudomonas aeruginosa, exhibiting a minimum inhibitory concentration and bactericidal effect at 0.5 mg/mL”

✓ located verbatim in the source · abstract, characters 1034–1194 · show in text ↑