Abstract
Dittrichia viscosa (L.) W. Greuter is a pioneer species belonging to the Compositae family. It is widespread in the Mediterranean basin, where it is considered invasive. It is a source of secondary metabolites, playing an important ecological role. D. viscosa plant extracts showed a phytotoxic activity on several physiological processes of different species. In the current study, the allelopathic potential of D. viscosa VOCs, released by its foliage, was evaluated on seed germination and root growth of lettuce. The VOCs effect was also studied on lettuce adult plants in microcosm systems, which better mimicked the open field conditions. D. viscosa VOCs inhibited both seed germination and root growth of lettuce. The VOCs composition revealed a large presence of terpenoids, responsible of the effects observed. Moreover, D. viscosa VOCs caused an alteration on plant water status accompanied by oxidative damages and photoinhibition on lettuce adult plants.
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Claims 7
Claim · model-written summary
Dittrichia viscosa VOCs inhibited lettuce seed germination.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- D. viscosa VOCse0
- Interactor
- D. viscosa
Dittrichia viscosae0other - Outcome
- seed germinatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. viscosa VOCs inhibited both seed germination and root growth of lettuce”
Claim · model-written summary
Dittrichia viscosa VOCs inhibited lettuce root growth.
- Taxon
- lettuceLactuca sativae0
- Treatment
- D. viscosa VOCse0
- Interactor
- D. viscosaDittrichia viscosae0other
- Outcome
- root growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. viscosa VOCs inhibited both seed germination and root growth of lettuce”
Claim · model-written summary
The VOC mixture contained abundant terpenoids.
- Taxon
- Dittrichia viscosaDittrichia viscosat0
- Outcome
- large presence of terpenoidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dittrichia viscosa”
e0“The VOCs composition revealed a large presence of terpenoids”
Claim · model-written summary
The authors attributed the observed effects to terpenoids.
- Taxon
- Dittrichia viscosaDittrichia viscosat0
- Compound
- terpenoidse0
- Outcome
- effects observede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dittrichia viscosa”
e0“terpenoids, responsible of the effects observed”
Claim · model-written summary
Dittrichia viscosa VOCs altered water status in adult lettuce.
- Taxon
- lettuceLactuca sativae0
- Organ / stage
- adult plantse0
- Treatment
- D. viscosa VOCse0
- Interactor
- D. viscosaDittrichia viscosae0other
- Outcome
- plant water statuse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. viscosa VOCs caused an alteration on plant water status accompanied by oxidative damages and photoinhibition on lettuce adult plants”
Claim · model-written summary
Dittrichia viscosa VOCs caused oxidative damage in adult lettuce.
- Taxon
- lettuceLactuca sativae0
- Organ / stage
- adult plantse0
- Treatment
- D. viscosa VOCse0
- Interactor
- D. viscosaDittrichia viscosae0other
- Outcome
- oxidative damagese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. viscosa VOCs caused an alteration on plant water status accompanied by oxidative damages and photoinhibition on lettuce adult plants”
Claim · model-written summary
Dittrichia viscosa VOCs caused photoinhibition in adult lettuce.
- Taxon
- lettuceLactuca sativae0
- Organ / stage
- adult plantse0
- Treatment
- D. viscosa VOCse0
- Interactor
- D. viscosaDittrichia viscosae0other
- Outcome
- photoinhibitione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. viscosa VOCs caused an alteration on plant water status accompanied by oxidative damages and photoinhibition on lettuce adult plants”
The same questions in other papers
volatile organic compound · growth · Lactuca sativa (garden lettuce)Positive and negative results
2 in the opposite direction
- positive
- positive
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.