Abstract
Ultraviolet-B (UV–B) radiation contributes only a minor fraction of the solar radiation that shows functional duality. It can induce negative effects directly by degrading DNA and protein or can strengthen UV-light mediated stress acclimation responses through activation of series of secondary metabolic pathways. In this experiment, we examined the secondary metabolites profile of Solanum lycopersicum (tomato) grown in doses of 15 min, 30 min, 45 min and 60 min of UV-B and the effects of its extracts on growth and metabolism of Capsicum annuum (chilli). The chief secondary metabolites of the tomato plants were determined by using gas-chromatography mass spectroscopy. Several biophysical, biochemical and histochemical analyses were performed to evaluate the effects of UV-B on secondary metabolism of the tomato and impact of its extract on chilli plants. The results indicated that the chilli plant showed negative growth responses against the aqueous extracts of tomato. These decrease in growth parameters are related to enhanced effects of secondary metabolites found in extracts which induce oxidative stress in the chilli plants. Moreover, histochemical imaging of chilli leaves and roots also showed the increased generation of reactive oxygen species and lignin accumulation. In conclusion our results highlight the presence of miscellaneous secondary metabolites which increased under UV-B stress and improved its herbicidal potency against chilli plants.
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Claims 5
Claim · model-written summary
Tomato aqueous extracts reduced chilli growth.
- Taxon
- chillie1
- Treatment
- aqueous extracts of tomatoe0
- Interactor
- tomato
Solanum lycopersicume0other - Outcome
- growth responsese0
- Direction
- negativee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the chilli plant showed negative growth responses against the aqueous extracts of tomato”
e1“Capsicum annuum (chilli)”
e2“Solanum lycopersicum (tomato)”
Claim · model-written summary
Authors relate reduced chilli growth to metabolites in tomato extracts that induce oxidative stress.
- Taxon
- chillie1
- Interactor
- tomatoSolanum lycopersicume2other
- Compound
- secondary metabolitese0
- Outcome
- decrease in growth parameterse0
- Qualifier
- induce oxidative stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These decrease in growth parameters are related to enhanced effects of secondary metabolites found in extracts which induce oxidative stress in the chilli plants.”
e1“Capsicum annuum (chilli)”
e2“Solanum lycopersicum (tomato)”
Claim · model-written summary
Tomato extracts increased reactive oxygen species generation and lignin accumulation in chilli leaves and roots.
- Taxon
- chillie1
- Organ / stage
- chilli leaves and rootse0
- Treatment
- aqueous extracts of tomatoe2
- Interactor
- tomatoSolanum lycopersicume2other
- Outcome
- generation of reactive oxygen species and lignin accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“histochemical imaging of chilli leaves and roots also showed the increased generation of reactive oxygen species and lignin accumulation”
e1“Capsicum annuum (chilli)”
e2“aqueous extracts of tomato”
Claim · model-written summary
Secondary metabolites in tomato increased under UV-B stress.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- UV-B stresse0
- Outcome
- miscellaneous secondary metabolitese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“presence of miscellaneous secondary metabolites which increased under UV-B stress”
e1“Solanum lycopersicum (tomato)”
Claim · model-written summary
Authors conclude that UV-B improved the herbicidal potency of tomato metabolites against chilli.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- UV-B stresse0
- Interactor
- chillie0other
- Outcome
- herbicidal potency against chilli plantse0
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“secondary metabolites which increased under UV-B stress and improved its herbicidal potency against chilli plants”
e1“Solanum lycopersicum (tomato)”
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