Abstract
Secondary metabolites like pyrrolizidine alkaloids (PAs) play a crucial part in plant defense. We studied the effects of soil-borne microorganisms and soil-type on pyrrolizidine alkaloids in roots and shoots of Jacobaea vulgaris. We used clones of two genotypes from a dune area (Meijendel), propagated by tissue culture and grown on two sterilized soils and sterilized soils inoculated with 5% of non-sterilized soil of either of the two soil-types. Soil-borne microorganisms and soil-type affected the composition of PAs. By changing the composition rather than the total concentration below and aboveground, plants have a more complex defense strategy than formerly thought. Interestingly, a stronger negative effect on plant growth was found in sterilized soils inoculated with their ‘own’ microbial community suggesting that pathogenic and/or other plant inhibiting microorganisms were adapted to their ‘own’ soil conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 3
Claim · model-written summary
Soil microbes and soil type altered PA composition.
- Taxon
- Jacobaea vulgaris
Jacobaea vulgarist0 - Treatment
- Soil-borne microorganisms and soil-typee0
- Interactor
- Soil-borne microorganismse0other
- Outcome
- composition of PAse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil-borne microorganisms and soil-type affected the composition of PAs”
t0“Jacobaea vulgaris”
Claim · model-written summary
Plants changed PA composition rather than total concentration.
- Taxon
- Jacobaea vulgarisJacobaea vulgarist0
- Organ / stage
- below and abovegrounde0
- Outcome
- composition rather than the total concentratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“changing the composition rather than the total concentration below and aboveground”
t0“Jacobaea vulgaris”
Claim · model-written summary
Inoculation with a plant’s own soil microbial community had a stronger negative effect on growth.
- Taxon
- Jacobaea vulgarisJacobaea vulgarist0
- Treatment
- inoculated with their ‘own’ microbial communitye0
- Interactor
- microbial communitye0other
- Outcome
- plant growthe0
- Direction
- stronger negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a stronger negative effect on plant growth was found in sterilized soils inoculated with their ‘own’ microbial community”
t0“Jacobaea vulgaris”
The same questions in other papers
inoculation · growth · Jacobaea vulgaris (stinking willie)Results agree
3 papers in the same direction as this paper
- negative
- negative
- no effect
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.