Paper · 1990

V. Constitutive and Elicitor-induced Accumulation of Isoflavonoid Conjugates in Cell Suspension Cultures

Helmut Keßmann; Robert Edwards; Paul W. Geno; et al.

6
claims
12
verbatim quotes
2
citations
2
research areas
—
Not open access

Abstract

The isoflavonoid conjugates medicarpin-3-0-glucoside-6-Omalonate (MGM), afrormosin-7-0-glucoside (AG), and afrormosin7-0-glucoside-6-O-malonate (AGM) were isolated and characterized from cell suspension cultures of alfalfa (Medicago sativa L.), where they were the major constitutive secondary metabolites. They were also found in alfalfa roots but not in other parts of the plant. The phytoalexin medicarpin accumulated rapidly in suspension cultured cells treated with elicitor from Colletotrichum lindemuthianum, and this was subsequently accompanied by an increase in the levels of MGM. In contrast, net accumulation of afrormosin conjugates was not affected by elicitor treatment. Labeling studies with [14C]phenylalanine indicated that afrormosin conjugates were the major de novo synthesized isoflavonoid

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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

Observationobservedoriginal resultmeasured

Claim · model-written summary

Three isoflavonoid conjugates were major constitutive metabolites in alfalfa cell cultures.

Taxon
alfalfaMedicago sativae0
Organ / stage
cell suspension culturese0
Outcome
medicarpin-3-0-glucoside-6-Omalonate (MGM), afrormosin-7-0-glucoside (AG), and afrormosin7-0-glucoside-6-O-malonate (AGM)e0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“The isoflavonoid conjugates medicarpin-3-0-glucoside-6-Omalonate (MGM), afrormosin-7-0-glucoside (AG), and afrormosin7-0-glucoside-6-O-malonate (AGM) were isolated and characterized from cell suspension cultures of alfalfa (Medicago sativa L.), where they were the major constitutive secondary metabolites.”

✓ located verbatim in the source · abstract, characters 0–306 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The conjugates were found in alfalfa roots but not elsewhere in the plant.

Taxon
alfalfaMedicago sativae0
Organ / stage
rootse0
Outcome
alfalfa roots but not in other parts of the plante0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“alfalfa roots but not in other parts of the plant”

✓ located verbatim in the source · abstract, characters 331–380 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fungal elicitor treatment caused rapid medicarpin accumulation in cultured cells.

Taxon
alfalfaMedicago sativae1
Organ / stage
suspension cultured cellse0
Treatment
elicitor from Colletotrichum lindemuthianume0
Interactor
Colletotrichum lindemuthianumColletotrichum lindemuthianume0pathogen
Outcome
medicarpine0
Direction
accumulated rapidlye0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗
Colletotrichum lindemuthianum
Colletotrichum lindemuthianum · InteractorDavid B. Langston, University of Georgia, Bugwood.org · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The phytoalexin medicarpin accumulated rapidly in suspension cultured cells treated with elicitor from Colletotrichum lindemuthianum”

✓ located verbatim in the source · abstract, characters 382–514 · show in text ↑
e1

“alfalfa roots”

✓ located verbatim in the source · abstract, characters 331–344 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

MGM levels subsequently increased after elicitor treatment.

Taxon
alfalfaMedicago sativae2
Treatment
elicitor from Colletotrichum lindemuthianume1
Interactor
Colletotrichum lindemuthianumColletotrichum lindemuthianume1pathogen
Outcome
levels of MGMe0
Direction
increasee0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗
Colletotrichum lindemuthianum
Colletotrichum lindemuthianum · InteractorDavid B. Langston, University of Georgia, Bugwood.org · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“this was subsequently accompanied by an increase in the levels of MGM”

✓ located verbatim in the source · abstract, characters 520–589 · show in text ↑
e1

“elicitor from Colletotrichum lindemuthianum”

✓ located verbatim in the source · abstract, characters 471–514 · show in text ↑
e2

“alfalfa roots”

✓ located verbatim in the source · abstract, characters 331–344 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Elicitor treatment did not alter net accumulation of afrormosin conjugates.

Taxon
alfalfaMedicago sativae1
Treatment
elicitor treatmente0
Interactor
Colletotrichum lindemuthianumColletotrichum lindemuthianume2pathogen
Outcome
net accumulation of afrormosin conjugatese0
Direction
not affectede0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗
Colletotrichum lindemuthianum
Colletotrichum lindemuthianum · InteractorDavid B. Langston, University of Georgia, Bugwood.org · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“net accumulation of afrormosin conjugates was not affected by elicitor treatment”

✓ located verbatim in the source · abstract, characters 604–684 · show in text ↑
e1

“alfalfa roots”

✓ located verbatim in the source · abstract, characters 331–344 · show in text ↑
e2

“elicitor from Colletotrichum lindemuthianum”

✓ located verbatim in the source · abstract, characters 471–514 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Labeling indicated that afrormosin conjugates were the major newly synthesized isoflavonoids.

Taxon
alfalfaMedicago sativae1
Outcome
afrormosin conjugates were the major de novo synthesized isoflavonoide0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Labeling studies with [14C]phenylalanine indicated that afrormosin conjugates were the major de novo synthesized isoflavonoid”

✓ located verbatim in the source · abstract, characters 686–811 · show in text ↑
e1

“alfalfa roots”

✓ located verbatim in the source · abstract, characters 331–344 · show in text ↑

resistance inducer · molecular: metabolites · Medicago sativa (alfalfa)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. no effect
  2. positive
See all 3 papers →

resistance inducer · Colletotrichum lindemuthianum · Medicago sativa (alfalfa)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

2 in the opposite direction

  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.