Paper · 1992 · Zeitschrift für Naturforschung C

Accumulation Of Phenolic Compounds In Leaves Of Tomato Plants After Infection With Clavibacter Michiganense Subsp. Michiganense Strains Differing In Virulence

Andrea Beimen; Andreas Bermpohl; Dietmar Meletzus; et al.

9
claims
18
verbatim quotes
40
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Infection experiments using tomato (Lycopersicon esculentum cv. Moneymaker) plants and three strains of Clavibacter michiganense subsp. michiganense were conducted. The bacterial isolates differed in plasmid status, virulence (measured as wilting index and as reduction of plant biomass) and the ability to colonize the plants. Differences in the expression of exopolysaccharides and the exoenzymes endocellulase, polygalacturonase, and xylanase, respectively, were not found with the bacterial isolates. As infection-induced responses of the plants timedepending increases in soluble phenolic material, including chlorogenic acid and rutin, in the steroid alkaloid tomatine and in cell wall-bound cinnamic acids were found. In the latter fraction p-coumaric, ferulic and especially caffeic acid were the main constituents. All plant responses were preferentially expressed in the compatible interaction. Sesquiterpenoid phytoalexins were not found in the infected plant tissues. The relation between bacterial pathogenicity and plant responses is discussed

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 9

Observationobservedoriginal resultmeasured

Claim · model-written summary

The bacterial isolates differed in virulence, measured by wilting and plant biomass reduction.

Interactor
bacterial isolatese0pathogen
Outcome
wilting index and as reduction of plant biomasse0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The bacterial isolates differed in plasmid status, virulence (measured as wilting index and as reduction of plant biomass) and the ability to colonize the plants.”

✓ located verbatim in the source · abstract, characters 165–327 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The bacterial isolates differed in ability to colonize tomato plants.

Interactor
bacterial isolatese0pathogen
Outcome
ability to colonize the plantse0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The bacterial isolates differed in plasmid status, virulence (measured as wilting index and as reduction of plant biomass) and the ability to colonize the plants.”

✓ located verbatim in the source · abstract, characters 165–327 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Bacterial isolates did not differ in exopolysaccharide and exoenzyme expression.

Interactor
bacterial isolatese0pathogen
Outcome
expression of exopolysaccharides and the exoenzymes endocellulase, polygalacturonase, and xylanasee0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Differences in the expression of exopolysaccharides and the exoenzymes endocellulase, polygalacturonase, and xylanase, respectively, were not found with the bacterial isolates.”

✓ located verbatim in the source · abstract, characters 328–504 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Infection increased soluble phenolic material, including chlorogenic acid and rutin, over time.

Treatment
infection-inducede0
Outcome
soluble phenolic material, including chlorogenic acid and rutine0
Direction
increasese0
Qualifier
timedependinge0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“As infection-induced responses of the plants timedepending increases in soluble phenolic material, including chlorogenic acid and rutin, in the steroid alkaloid tomatine and in cell wall-bound cinnamic acids were found.”

✓ located verbatim in the source · abstract, characters 505–724 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Infection increased tomatine over time.

Treatment
infection-inducede0
Outcome
tomatinee0
Direction
increasese0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“As infection-induced responses of the plants timedepending increases in soluble phenolic material, including chlorogenic acid and rutin, in the steroid alkaloid tomatine and in cell wall-bound cinnamic acids were found.”

✓ located verbatim in the source · abstract, characters 505–724 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Infection increased cell wall bound cinnamic acids over time.

Treatment
infection-inducede0
Outcome
cell wall-bound cinnamic acidse0
Direction
increasese0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“As infection-induced responses of the plants timedepending increases in soluble phenolic material, including chlorogenic acid and rutin, in the steroid alkaloid tomatine and in cell wall-bound cinnamic acids were found.”

✓ located verbatim in the source · abstract, characters 505–724 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The main cell wall bound cinnamic acids were p-coumaric, ferulic and especially caffeic acid.

Outcome
p-coumaric, ferulic and especially caffeic acid were the main constituentse0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In the latter fraction p-coumaric, ferulic and especially caffeic acid were the main constituents.”

✓ located verbatim in the source · abstract, characters 725–823 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Plant responses were preferentially expressed in compatible interactions.

Outcome
plant responsese0
Direction
preferentiallye0
Comparator
compatible interactione0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“All plant responses were preferentially expressed in the compatible interaction.”

✓ located verbatim in the source · abstract, characters 824–904 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Sesquiterpenoid phytoalexins were absent from infected plant tissue.

Organ / stage
plant tissuese0
Outcome
Sesquiterpenoid phytoalexins were not founde0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Sesquiterpenoid phytoalexins were not found in the infected plant tissues.”

✓ located verbatim in the source · abstract, characters 905–979 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 48–61 · show in text ↑

infection · cytology · Solanum lycopersicum (tomato)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive
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infection · quality: phytochemicals · Solanum lycopersicum (tomato)Positive and negative results

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infection · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results

33 papers: 15 positive, 18 negative or no effect

14 papers in the same direction as this paper · 17 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

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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.